About Antonio Pinheiro

Antonio Pinheiro received the B.E. degree in electrical engineering from the I.S.T. University of Lisbon, Portugal, in 1988, and the Ph.D. degree in Electronic Systems Engineering from University of Essex in 2002. Since 1988 he is a lecture at University da Beira Interior (UBI), Portugal. His current research interests are on image processing and computer vision domains, including Multimedia Quality, Multimedia Privacy, and also on Image Classification and Medical Image Analysis. He is the Communication chair and a Portuguese committee member of ISO/IEC JTC 1/SC 29/WG 1 (JPEG). He has been Portuguese representative of the European COST Actions 292 and IC1003 -€“ Qualinet, and currently he is Portuguese representative of IC1206, DE-ID - De-identification for privacy protection in multimedia content and BM1304, MYO-MRI - Applications of MR imaging and spectroscopy techniques in neuromuscular disease.

JPEG Column: 87th JPEG Meeting

The 87th JPEG meeting initially planned to be held in Erlangen, Germany, was held online from 25-30, April 2020 because of the Covid-19 outbreak. JPEG experts participated in a number of online meetings attempting to make them as effective as possible while considering participation from different time zones, ranging from Australia to California, U.S.A.

JPEG decided to proceed with a Second Call for Evidence on JPEG Pleno Point Cloud Coding and continued work to prepare for contributions to the previous Call for Evidence on Learning-based Image Coding Technologies (JPEG AI).

The 87th JPEG meeting had the following highlights:

  • JPEG Pleno Point Cloud Coding issues a Call for Evidence on coding solutions supporting scalability and random access of decoded point clouds.
  • JPEG AI defines evaluation methodologies of the Call for Evidence on machine learning based image coding solutions.
  • JPEG XL defines the file format compatible with existing formats. 
  • JPEG exploration on Media Blockchain releases use cases and requirements.
  • JPEG Systems releases a first version of JPEG Snack use cases and requirements.
  • JPEG XS announces significant improvement of the quality of raw-Bayer image sensor data compression.

JPEG Pleno Point Cloud

JPEG Pleno is working towards the integration of various modalities of plenoptic content under a single and seamless framework. Efficient and powerful point cloud representation is a key feature within this vision. Point cloud data supports a wide range of applications including computer-aided manufacturing, entertainment, cultural heritage preservation, scientific research and advanced sensing and analysis. During the 87th JPEG meeting, the JPEG Committee released a Second Call for Evidence on JPEG Pleno Point Cloud Coding that focuses specifically on point cloud coding solutions supporting scalability and random access of decoded point clouds. The Second Call for Evidence on JPEG Pleno Point Cloud Coding has a revised timeline reflecting changes in the activity due to the 2020 COVID-19 Pandemic. A Final Call for Evidence on JPEG Pleno Point Cloud Coding is planned to be released in July 2020.

JPEG AI

The main focus of JPEG AI was on the promotion and definition of the submission and evaluation methodologies of the Call for Evidence (in coordination with the IEEE MMSP 2020 Challenge) that was issued as outcome of the 86th JPEG meeting, Sydney, Australia.

JPEG XL

The File Format has been defined for JPEG XL (ISO/IEC 18181-1) codestream, metadata and extensions. The file format enables compatibility with ISOBMFF, JUMBF, XMP, Exif and other existing standards. Standardization has now reached the Committee Draft stage and the DIS ballot is ongoing. A white paper about JPEG XL’s features and tools was approved at this meeting and is available on the jpeg.org website.

JPEG exploration on Media Blockchain – Call for feedback on use cases and requirements

JPEG has determined that blockchain and distributed ledger technologies (DLT) have great potential as a technology component to address many privacy and security related challenges in digital media applications. This includes digital rights management, privacy and security, integrity verification, and authenticity, that impacts society in several ways including the loss of income in the creative sector due to piracy, the spread of fake news, or evidence tampering for fraud purposes.

JPEG is exploring standardization needs related to media blockchain to ensure seamless interoperability and integration of blockchain technology with widely accepted media standards. In this context, the JPEG Committee announces a call for feedback from interested stakeholders on the first public release of the use cases and requirements document.

JPEG Systems initiates standardisation of JPEG Snack

Media “snacking”, the consumption of multimedia in short bursts (less than 15 minutes) has become globally popular. JPEG recognizes the need for standardizing how snack images are constructed to ensure interoperability. A first version of JPEG Snack use cases and requirements is now complete and publicly available on JPEG website inviting feedback from stakeholders.

JPEG made progress on a fundamental capability of the JPEG file structure with enhancements to JPEG Universal Metadata Box Format (JUMBF) to support embedding common file types; the DIS text for JUMBF Amendment 1 is ready for ballot. Likewise JPEG 360 Amendment 1 DIS text is ready for ballot; this amendment supports stereoscopic 360 degree images, accelerated rendering for regions-of-interest, and removes the XMP signature block from the metadata description.

JPEG XS – The JPEG committee is pleased to announce significant improvement of the quality of its upcoming Bayer compression.

Over the past year, an improvement of around 2dB has been observed for the new coding tools currently being developed for image sensor compression within JPEG XS. This visually lossless low-latency and lightweight compression scheme can be used as a mezzanine codec in various markets like real-time video storage inside and outside of cameras, and data compression onboard autonomous cars. Mathematically lossless capability is also investigated and encapsulation within MXF or SMPTE ST2110-22 is currently being finalized.

Final Quote

“JPEG is committed to the development of new standards that provide state of the art imaging solutions to the largest spectrum of stakeholders. During the 87th meeting, held online because of the Covid-19 pandemic, JPEG progressed well with its current and even launched new activities. Although some timelines had to be revisited, overall, no disruptions of the workplan have occurred.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch, JPEG XT and more recently, the JPEG XS, JPEG Systems, JPEG Pleno and JPEG XL families of imaging standards.

More information about JPEG and its work is available at jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 88, initially planned in Geneva, Switzerland, July 4 to 10, 2020, will be held online from July 7 to 10, 2020.

JPEG Column: 86th JPEG Meeting in Sydney, Australia

The 86th JPEG meeting was held in Sydney, Australia.

Among the different activities that took place, the JPEG Committee issued a Call for Evidence on learning-based image coding solutions. This call results from the success of the  explorations studies recently carried out by the JPEG Committee, and honours the pioneering work of JPEG issuing the first image coding standard more than 25 years ago.

In addition, a First Call for Evidence on Point Cloud Coding was issued in the framework of JPEG Pleno. Furthermore, an updated version of the JPEG Pleno reference software and a JPEG XL open source implementation have been released, while JPEG XS continues the development of raw-Bayer image sensor compression.

JPEG Plenary at the 86th meeting.

The 86th JPEG meeting had the following highlights:

  • JPEG AI issues a call for evidence on machine learning based image coding solutions
  • JPEG Pleno issues call for evidence on Point Cloud coding
  • JPEG XL verification test reveal competitive performance with commonly used image coding solutions 
  • JPEG Systems submitted final texts for Privacy & Security
  • JPEG XS announces new coding tools optimised for compression of raw-Bayer image sensor data

JPEG AI

The JPEG Committee launched a learning-based image coding activity more than a year ago, also referred as JPEG AI. This activity aims to find evidence for image coding technologies that offer substantially better compression efficiency when compared to conventional approaches but relying on models exploiting a large image database.

A Call for Evidence (CfE) has been issued as outcome of the 86th JPEG meeting, Sydney, Australia as a first formal step to consider standardisation of such approaches in image compression. The CfE is organised in coordination with the IEEE MMSP 2020 Grand Challenge on Learning-based Image Coding Challenge and will use the same content, evaluation methodologies and deadlines.

JPEG Pleno

JPEG Pleno is working toward the integration of various modalities of plenoptic content under a single framework and in a seamless manner. Efficient and powerful point cloud representation is a key feature within this vision.  Point cloud data supports a wide range of applications including computer-aided manufacturing, entertainment, cultural heritage preservation, scientific research and advanced sensing and analysis. During the 86th JPEG Meeting, the JPEG Committee released a First Call for Evidence on JPEG Pleno Point Cloud Coding to be integrated in the JPEG Pleno framework.  This Call for Evidence focuses specifically on point cloud coding solutions that support scalability and random access of decoded point clouds.

Furthermore, a Reference Software implementation of the JPEG Pleno file format (Part 1) and light field coding technology (Part 2) is made publicly available as open source on the JPEG Gitlab repository (https://gitlab.com/wg1). The JPEG Pleno Reference Software is planned to become an International Standard as Part 4 of JPEG Pleno by the end of 2020.

JPEG XL

The JPEG XL Image Coding System (ISO/IEC 18181) has produced an open source reference implementation available on the JPEG Gitlab repository (https://gitlab.com/wg1/jpeg-xl). The software is available under Apache 2, which includes a royalty-free patent grant. Speed tests indicate the multithreaded encoder and decoder outperforms libjpeg-turbo. 

Independent subjective and objective evaluation experiments have indicated competitive performance with commonly used image coding solutions while offering new functionalities such as lossless transcoding from legacy JPEG format to JPEG XL. The standardisation process has reached the Draft International Standard stage.

JPEG exploration into Media Blockchain

Fake news, copyright violations, media forensics, privacy and security are emerging challenges in digital media. JPEG has determined that blockchain and distributed ledger technologies (DLT) have great potential as a technology component to address these challenges in transparent and trustable media transactions. However, blockchain and DLT need to be integrated efficiently with a widely adopted standard to ensure broad interoperability of protected images. Therefore, the JPEG committee has organised several workshops to engage with the industry and help to identify use cases and requirements that will drive the standardisation process.

During its Sydney meeting, the committee organised an Open Discussion Session on Media Blockchain and invited local stakeholders to take part in an interactive discussion. The discussion focused on media blockchain and related application areas including, media and document provenance, smart contracts, governance, legal understanding and privacy. The presentations of this session are available on the JPEG website. To keep informed and to get involved in this activity, interested parties are invited to register to the ad hoc group’s mailing list.

JPEG Systems

JPEG Systems & Integration submitted final texts for ISO/IEC 19566-4 (Privacy & Security), ISO/IEC 24800-2 (JPSearch), and ISO/IEC 15444-16 2nd edition (JPEG 2000-in-HEIF) for publication.  Amendments to add new capabilities for JUMBF and JPEG 360 reached Committee Draft stage and will be reviewed and balloted by national bodies.

The JPEG Privacy & Security release is timely as consumers are increasingly aware and concerned about the need to protect privacy in imaging applications.  The JPEG 2000-in-HEIF enables embedding JPEG 2000 images in the HEIF file format.  The updated JUMBF provides a more generic means to embed images and other media within JPEG files to enable richer image experiences.  The updated JPEG 360 adds stereoscopic 360 images, and a method to accelerate the rendering of a region-of-interest within an image in order to reduce the latency experienced by users.  JPEG Systems & Integrations JLINK, which elaborates the relationships of the embedded media within the file, created updated use cases to refine the requirements, and continued technical discussions on implementation.

JPEG XS

The JPEG committee is pleased to announce the specification of new coding tools optimised for compression of raw-Bayer image sensor data. The JPEG XS project aims at the standardisation of a visually lossless, low-latency and lightweight compression scheme that can be used as a mezzanine codec in various markets. Video transport over professional video links, real-time video storage in and outside of cameras, and data compression onboard of autonomous cars are among the targeted use cases for raw-Bayer image sensor compression. Amendment of the Core Coding System, together with new profiles targeting raw-Bayer image applications are ongoing and expected to be published by the end of 2020.

Final Quote

“The efforts to find new and improved solutions in image compression have led JPEG to explore new opportunities relying on machine learning for coding. After rigorous analysis in form of explorations during the last 12 months, JPEG believes that it is time to formally initiate a standardisation process, and consequently, has issued a call for evidence for image compression based on machine learning.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

86th JPEG meeting social event in Sydney, Australia.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch, JPEG XT and more recently, the JPEG XS, JPEG Systems, JPEG Pleno and JPEG XL families of imaging standards.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup. If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 87, Erlangen, Germany, April 25 to 30, 2020 (Cancelled because of Covid-19 outbreak; Replaced by online meetings.)
  • No 88, Geneva, Switzerland, July 4 to 10, 2020

JPEG Column: 85th JPEG Meeting in San Jose, California, U.S.A.

The 85th JPEG meeting was held in San Jose, CA, USA.

The meeting was distinguished by the Prime Time Engineering Emmy Award from the Academy of Television Arts & Sciences (ATAS) for the longevity of the first JPEG standard. Furthermore, a very successful workshop on JPEG emerging technologies was held at Microsoft premises in Silicon Valley with a broad participation from several companies working in imaging technologies. This workshop ended with the celebration of two JPEG committee experts, Thomas Richter and Ogawa Shigetaka, recognized by ISO outstanding contribution awards for the key roles they played in the development of JPEG XT standard.

The 85th JPEG meeting continued laying the groundwork for the continuous development of JPEG standards and exploration studies. In particular, the developments on new image coding standard JPEG XL,  the low latency and complexity standard JPEG XS, and the release of the JPEG Systems interoperable 360 image standard, together with the exploration studies on image compression using machine learning and on the use of blockchain and distributed ledger technologies for media applications.

The 85th JPEG meeting had the following highlights:

  • Prime Time Engineering Emmy award,
  • JPEG Emerging Technologies Workshop,
  • JPEG XL progresses towards a final specification,
  • JPEG AI evaluates machine learning based coding solutions,
  • JPEG exploration on Media Blockchain,
  • JPEG Systems interoperable 360 image standards released,
  • JPEG XS announces significant improvements of Bayer image sensor data compression.
JPEG Emerging Technologies Workshop.

Prime Time Engineering Emmy

The JPEG committee is honored to be the recipient of a prestigious Prime Time Engineering Award in 2019 by the US Academy of Television Arts & Sciences at the 71st Engineering Emmy Awards ceremony on the 23rd of October 2019 in Los Angeles, CA, USA. The first JPEG standard is known as a popular format in digital photography, used by hundreds of millions of users everywhere, in a wide range of applications including the world wide web, social media, photographic apparatus and smart cameras. The first part of the standard was published in 1992 and has grown to seven parts, with the latest, defining the reference software, published in 2019. This is a unique example of longevity in the fast moving information technologies and the Emmy award acknowledges this longevity and continuing influence over nearly three decades.

This is a well-deserved recognition not only for the Joint Photographic Experts Group committee members who started this standard under the auspices of ITU, ISO, IEC but also to all experts in the JPEG committee who continued to extend and maintain it, hence guaranteeing such a longevity.

JPEG convenor Touradj Ebrahimi during the Emmy acceptance speech.

According to Prof. Touradj Ebrahimi, Convenor of JPEG standardization committee, the longevity of JPEG is based on three very important factors: “The credibility by being developed under the auspices of three important standardization bodies, namely ITU, ISO and IEC, development by explicitly taking into account end users, and the choice of being royalty free”. Furthermore,  “JPEG defined not only a great technology but also it was a committee that first defined how standardization should take place in order to become successful”.

JPEG Emerging Technologies Workshop

At the 85th JPEG meeting in San Jose, CA, USA, JPEG organized the “JPEG Emerging Technologies Workshop” on the 5th of November 2019 to inform industry and academia active in the wider field of multimedia and in particular in imaging, about current JPEG Committee standardization activities and exploration studies. Leading JPEG experts shared highlights about some of the emerging JPEG technologies that could shape the future of imaging and multimedia, with the following program:

  • Welcome and Introduction (Touradj Ebrahimi);
  • JPEG XS – Lightweight compression; Transparent quality. (Antonin Descampe);
  • JPEG Pleno (Peter Schelkens);
  • JPEG XL – Next-generation Image Compression (Jan Wassenberg and Jon Sneyers);
  • High-Throughput JPEG 2000 – Big improvement to JPEG 2000 (Pierre-Anthony Lemieux);
  • JPEG Systems – The framework for future and legacy standards (Andy Kuzma);
  • JPEG Privacy and Security and Exploration on Media Blockchain Standardization Needs (Frederik Temmermans);
  • JPEG AI: Learning to Compress (João Ascenso)

This very successful workshop ended with a panel moderated by Fernando Pereira where different relevant media technology issues were discussed with a vibrant participation of the attendees.

Proceedings of the JPEG Emerging Technologies Workshop are available for download via the following link: https://jpeg.org/items/20191108_jpeg_emerging_technologies_workshop_proceedings.html

JPEG XL

The JPEG XL Image Coding System (ISO/IEC 18181) continues its progression towards a final specification. The Committee Draft of JPEG XL is being refined based on feedback received from experts from ISO/IEC national bodies. Experiments indicate the main two JPEG XL modes compare favorably with specialized responsive and lossless modes, enabling a simpler specification.

The JPEG committee has approved open-sourcing the JPEG XL software. JPEG XL will advance to the Draft International Standard stage in 2020-01.

JPEG AI

JPEG AI carried out rigorous subjective and objective evaluations of a number of promising learning-based image coding solutions from state of the art, which show the potential of these codecs for different rate-quality tradeoffs, in comparison to widely used anchors. Moreover, a wide set of objective metrics were evaluated for several types of image coding solutions.

JPEG exploration on Media Blockchain

Fake news, copyright violations, media forensics, privacy and security are emerging challenges in digital media. JPEG has determined that blockchain and distributed ledger technologies (DLT) have great potential as a technology component to address these challenges in transparent and trustable media transactions. However, blockchain and DLT need to be integrated closely with a widely adopted standard to ensure broad interoperability of protected images. Therefore, the JPEG committee has organized several workshops to engage with the industry and help to identify use cases and requirements that will drive the standardization process. During the San Jose meeting, the committee drafted a first version of the use cases and requirements document. On the 21st of January 2020, during its 86th JPEG Meeting to be held in Sydney, Australia, JPEG plans to organize an interactive discussion session with stakeholders. Practical and registration information is available on the JPEG website. To keep informed and to get involved in this activity, interested parties are invited to register to the ad hoc group’s mailing list. (http://jpeg-blockchain-list.jpeg.org).

JPEG Systems interoperable 360 image standards released.

The ISO/IEC 19566-5 JUMBF and ISO/IEC 19566-6 JPEG 360 were published in July 2019.  These two standards work together to define basics for interoperability and lay the groundwork for future capabilities for richer interactions with still images as we add functionality to JUMBF (Part 5), Privacy & Security (Part 4), JPEG 360 (Part 6), and JLINK (Part 7). 

JPEG XS announces significant improvements of Bayer image sensor data compression.

JPEG XS aims at standardization of a visually lossless low-latency and lightweight compression that can be used as a mezzanine codec in various markets. Work has been done in the last meeting to enable JPEG XS for use in Bayer image sensor compression. Among the targeted use cases for Bayer image sensor compression, one can cite video transport over professional video links, real-time video storage in and outside of cameras, and data compression onboard of autonomous cars. The JPEG Committee also announces the final publication of JPEG XS Part-3 “Transport and Container Formats” as International Standard. This part enables storage of JPEG XS images in various formats. In addition, an effort is currently on its final way to specify RTP payload for JPEG XS, which will enable transport of JPEG XS in the SMPTE ST2110 framework.

“The 2019 Prime Time Engineering Award by the Academy is a well-deserved recognition for the Joint Photographic Experts Group members who initiated standardization of the first JPEG standard and to all experts of the JPEG committee who since then have extended and maintained it, guaranteeing its longevity. JPEG defined not only a great technology but also it was the first committee that defined how standardization should take place in order to become successful” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch, JPEG XT and more recently, the JPEG XS, JPEG Systems, JPEG Pleno and JPEG XL families of imaging standards.

The JPEG Committee nominally meets four times a year, in different world locations. The 84th JPEG Meeting was held on 13-19 July 2019, in Brussels, Belgium. The next 86th JPEG Meeting will be held on 18-24 January 2020, in Sydney, Australia.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 86, Sydney, Australia, January 18 to 24, 2020
  • No 87, Erlangen, Germany, April 25 to 30, 2020

JPEG Column: 84th JPEG Meeting in Brussels, Belgium

The 84th JPEG meeting was held in Brussels, Belgium.

This meeting was characterised by significant progress in most of JPEG projects and also exploratory studies. JPEG XL, the new image coding system, has issued the Committee Draft, giving shape to this new effective solution for the future of image coding. JPEG Pleno, the standard for new imaging technologies, Part 1 (Framework) and Part 2 (Light field coding) have also reached Draft International Standard status.

Moreover, exploration studies are ongoing in the domain of media blockchain and on the application of learning solutions for image coding (JPEG AI). Both have triggered a number of activities providing new knowledge and opening new possibilities on the future use of these technologies in future JPEG standards.

The 84th JPEG meeting had the following highlights: 84th meetingTE-66694113_10156591758739370_4025463063158194176_n

  • JPEG XL issues the Committee Draft
  • JPEG Pleno Part 1 and 2 reaches Draft International Standard status
  • JPEG AI defines Common Test Conditions
  • JPEG exploration studies on Media Blockchain
  • JPEG Systems –JLINK working draft
  • JPEG XS

In the following, a short description of the most significant activities is presented.

 

JPEG XL

The JPEG XL Image Coding System (ISO/IEC 18181) has completed the Committee Draft of the standard. The new coding technique allows storage of high-quality images at one-third the size of the legacy JPEG format. Moreover, JPEG XL can losslessly transcode existing JPEG images to about 80% of their original size simplifying interoperability and accelerating wider deployment.

The JPEG XL reference software, ready for mobile and desktop deployments, will be available in Q4 2019. The current contributors have committed to releasing it publicly under a royalty-free and open source license.

 

JPEG Pleno

A significant milestone has been reached during this meeting: the Draft International Standard (DIS) for both JPEG Pleno Part 1 (Framework) and Part 2 (Light field coding) have been completed. A draft architecture of the Reference Software (Part 4) and developments plans have been also discussed and defined.

In addition, JPEG has completed an in-depth analysis of existing point cloud coding solutions and a new version of the use-cases and requirements document has been released reflecting the future role of JPEG Pleno in point cloud compression. A new set of Common Test Conditions has been released as a guideline for the testing and evaluation of point cloud coding solutions with both a best practice subjective testing protocol and a set of objective metrics.

JPEG Pleno holography activities had significant advances on the definition of use cases and requirements, and description of Common Test Conditions. New quality assessment methodologies for holographic data defined in the framework of a collaboration between JPEG and Qualinet were established. Moreover, JPEG Pleno continues collecting microscopic and tomographic holographic data.

 

JPEG AI

The JPEG Committee continues to carry out exploration studies with deep learning-based image compression solutions, typically with an auto-encoder architecture. The promise that these types of codecs hold, especially in terms of coding efficiency, will be evaluated with several studies. In this meeting, a Common Test Conditions was produced, which includes a plan for subjective and objective quality assessment experiments as well as coding pipelines for anchor and learning-based codecs. Moreover, a JPEG AI dataset was proposed and discussed, and a double stimulus impairment scale experiment (side-by-side) was performed with a mix of experts and non-experts in a controlled environment.

 

JPEG exploration on Media Blockchain

Fake news, copyright violation, media forensics, privacy and security are emerging challenges in digital media. JPEG has determined that blockchain and distributed ledger technologies (DLT) have great potential as a technology component to address these challenges in transparent and trustable media transactions. However, blockchain and DLT need to be integrated closely with a widely adopted standard to ensure broad interoperability of protected images. JPEG calls for industry participation to help define use cases and requirements that will drive the standardization process. In order to clearly identify the impact of blockchain and distributed ledger technologies on JPEG standards, the committee has organised several workshops to interact with stakeholders in the domain.

The 4th public workshop on media blockchain was organized in Brussels on Tuesday the 16th of July 2019 during the 84th ISO/IEC JTC 1/SC 29/WG1 (JPEG) Meeting. The presentations and program of the workshop are available on jpeg.org.

The JPEG Committee has issued an updated version of the white paper entitled “Towards a Standardized Framework for Media Blockchain” that elaborates on the initiative, exploring relevant standardization activities, industrial needs and use cases.

To keep informed and to get involved in this activity, interested parties are invited to register to the ad hoc group’s mailing list.

 

JPEG Systems – JLINK

At the 84th meeting, IS text reviews for ISO/IEC 19566-5 JUMBF and ISO/IEC 19566-6 JPEG 360 were completed; IS publication will be forthcoming.  Work began on adding functionality to JUMBF, Privacy & Security, and JPEG 360; and initial planning towards developing software implementation of these parts of JPEG Systems specification.  Work also began on the new ISO/IEC 19566-7 Linked media images (JLINK) with development of a working draft.

 

JPEG XS

The JPEG Committee is pleased to announce new Core Experiments and Exploration Studies on compression of raw image sensor data. The JPEG XS project aims at the standardization of a visually lossless low-latency and lightweight compression scheme that can be used as a mezzanine codec in various markets. Video transport over professional video links (SDI, IP, Ethernet), real-time video storage in and outside of cameras, memory buffers, machine vision systems, and data compression onboard of autonomous vehicles are among the targeted use cases for raw image sensor compression. This new work on raw sensor data will pave the way towards highly efficient close-to-sensor image compression workflows with JPEG XS.

 

Final Quote

“Completion of the Committee Draft of JPEG XL, the new standard for image coding is an important milestone. It is hoped that JPEG XL can become an excellent replacement of the widely used JPEG format which has been in service for more than 25 years.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch, JPEG XT and more recently, the JPEG XS, JPEG Systems, JPEG Pleno and JPEG XL families of imaging standards.

More information about JPEG and its work is available at www.jpeg.org.

Future JPEG meetings are planned as follows:

  • No 85, San Jose, California, U.S.A., November 2 to 8, 2019
  • No 86, Sydney, Australia, January 18 to 24, 2020

JPEG Column: 83rd JPEG Meeting in Geneva, Switzerland

The 83rd JPEG meeting was held in Geneva, Switzerland.

The meeting was very dense due to the multiple activities taking place. Beyond the multiple standardization activities, like the new JPEG XL, JPEG Pleno, JPEG XS, HTJ2K or JPEG Systems, the 83rd JPEG meeting had the report and discussion of a new exploration study on the use of learning based methods applied to image coding, and two successful workshops, namely on digital holography applications and systems and the 3rd on media blockchain technology.

The new exploration study on the use of learning based methods applied to image coding was initiated at the previous 82nd JPEG meeting in Lisbon, Portugal. The initial approach provided very promising results and might establish a new alternative for future image representations.

The workshop on digital holography applications and systems, revealed the state of the art on industry applications and current technical solutions. It covered applications such as holographic microscopy, tomography, printing and display. Moreover, insights were provided on state-of-the-art holographic coding technologies and quality assessment procedures. The workshop allowed a very fruitful exchange of ideas between the different invited parties and JPEG experts.

The 3rd workshop of a series organized around media blockchain technology, had several talks were academia and industry shared their views on this emerging solution. The workshop ended with a panel where multiple questions were further elaborated by different panelists, providing the ground to a better understanding of the possible role of blockchain in media technology for the near future.

Two new logos for JPEG Pleno and JPEG XL, were approved and released during the Geneva meeting.

jpegpleno-logo  jpegxl-logo

The two new logos, for JPEG Pleno and JPEG XL

The 83rd JPEG meeting had the following highlights: 55540677_10156332786204370_7011318091044880384_n_h

  • New explorations studies of JPEG AI
  • The new Image Coding System JPEG XL
  • JPEG Pleno
  • JPEG XS
  • HTJ2K
  • JPEG Media Blockchain Technology
  • JPEG Systems – Privacy, Security & IPR, JPSearch and JPEG in HEIF

In the following a short summary of the most relevant achievements of the 83rd meeting in Geneva, Switzerland, are presented.

 

JPEG AI

The JPEG Committee is pleased to announce that it has started exploration studies on the use of learning-based solutions for its standards.

In the last few years, several efficient learning-based image coding solutions have been proposed, mainly with improved neural network models. These advances exploit the availability of large image datasets and special hardware, such as the highly parallelizable graphic processing units (GPUs). Recognizing that this area has received many contributions recently and it is considered critical for the future of a rich multimedia ecosystem, JPEG has created the JPEG AI AhG group to study promising learning-based image codecs with a precise and well-defined quality evaluation methodology.

In this meeting, a taxonomy was proposed and available solutions from the literature were organized into different dimensions. Besides, a list of promising learning-based image compression implementations and potential datasets to be used in the future were gathered.

JPEG XL

The JPEG Committee continues to develop the JPEG XL Image Coding System, a standard for image coding that offers substantially better compression efficiency than relevant alternative image formats, along with features desirable for web distribution and efficient compression of high quality images.

Software for the JPEG XL verification model has been implemented. A series of experiments showed promising results for lossy, lossless and progressive coding. In particular, photos can be stored with significant savings in size compared to equivalent-quality JPEG files. Additionally, existing JPEG files can also be considerably reduced in size (for faster download) while retaining the ability to later reproduce the exact JPEG file. Moreover, lossless storage of images is possible with major savings in size compared to PNG. Further refinements to the software and experiments (including enhancement of existing JPEG files, and animations) will follow.

JPEG Pleno

The JPEG Committee has three activities in JPEG Pleno: Light Field, Point Cloud, and Holographic image coding. A generic box-based syntax has been defined that allows for signaling of these modalities, independently or composing a plenoptic scene represented by different modalities. The JPEG Pleno system also includes a reference grid system that supports the positioning of the respective modalities. The generic file format and reference grid system are defined in Part 1 of the standard, which is currently under development. Part 2 of the standard covers light field coding and supports two encoding mechanisms. The launch of specifications for point cloud and holographic content is under study by the JPEG committee.

JPEG XS

The JPEG committee is pleased to announce the creation of an Amendment to JPEG XS Core Coding System defining the use of the codec for raw image sensor data. The JPEG XS project aims at the standardization of a visually lossless low-latency and lightweight compression scheme that can be used as a mezzanine codec in various markets. Among the targeted use cases for raw image sensor compression, one can cite video transport over professional video links (SDI, IP, Ethernet), real-time video storage in and outside of cameras, memory buffers, machine vision systems, and data compression onboard of autonomous cars. One of the most important benefit of the JPEG XS codec is an end-to-end latency ranging from less than one line to a few lines of the image.

HTJ2K

The JPEG committee is pleased to announce a significant milestone, with ISO/IEC 15444-15 High-Throughput JPEG 2000 (HTJ2K) submitted to ISO for immediate publication as International Standard. HTJ2K opens the door to higher encoding and decoding throughput for applications where JPEG 2000 is used today.

The HTJ2K algorithm has demonstrated an average tenfold increase in encoding and decoding throughput compared to the algorithm currently defined by JPEG 2000 Part 1. This increase in throughput results in an average coding efficiency loss of 10% or less in comparison to the most efficient modes of the block coding algorithm in JPEG 2000 Part 1 and enables mathematically lossless transcoding to and from JPEG 2000 Part 1 codestreams.

JPEG Media Blockchain Technology

In order to clearly identify the impact of blockchain and distributed ledger technologies on JPEG standards, the committee has organized several workshops to interact with stakeholders in the domain. The programs and proceedings of these workshop are accessible on the JPEG website:

  1. 1st JPEG Workshop on Media Blockchain Proceedings, ISO/IEC JTC1/SC29/WG1, Vancouver, Canada, October 16th, 2018
  2. 2nd JPEG Workshop on Media Blockchain Proceedings, ISO/IEC JTC1/SC29/WG1, Lisbon, Portugal, January 22nd, 2019
  3. 3rd JPEG Workshop on Media Blockchain Proceedings, ISO/IEC JTC1/SC29/WG1, Geneva, Switzerland, March 20th, 2019

A 4th workshop is planned during the 84th JPEG meeting to be held in Brussels, Belgium on July 16th, 2019. The JPEG Committee invites experts to participate to this upcoming workshop.

JPEG Systems – Privacy, Security & IPR, JPSearch, and JPEG-in-HEIF.

At the 83rd meeting, JPEG Systems realized significant progress towards improving users’ privacy with the DIS text completion of ISO/IEC 19566-4 “Privacy, Security, and IPR Features” which will be released for ballot. JPEG Systems continued to progress on image search and retrieval with the FDIS text release of JPSearch ISO/IEC 24800 Part 2- 2nd edition. Finally, support for JPEG 2000, JPEG XR, and JPEG XS images encapsulated in ISO/IEC 15444-12 are progressing towards IS stage; this enables these JPEG images to be encapsulated in ISO base media file formats, such as ISO/IEC 23008-12 High efficiency file format (HEIF).

Final Quote

“Intelligent codecs might redesign the future of media compression. JPEG can accelerate this trend by producing the first AI based image coding standard.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch, JPEG XT and more recently, the JPEG XS, JPEG Systems, JPEG Pleno and JPEG XL families of imaging standards.

The JPEG Committee nominally meets four times a year, in different world locations. The 82nd JPEG Meeting was held on 19-25 January 2018, in Lisbon, Portugal. The next 84th JPEG Meeting will be held on 13-19 July 2019, in Brussels, Belgium.

More information about JPEG and its work is available at jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list.

Future JPEG meetings are planned as follows:

  • No 84, Brussels, Belgium, July 13 to 19, 2019
  • No 85, San Jose, California, U.S.A., November 2 to 8, 2019
  • No 86, Sydney, Australia, January 18 to 24, 2020

JPEG Column: 82nd JPEG Meeting in Lisbon, Portugal

The 82nd JPEG meeting was held in Lisbon, Portugal. Highlights of the meeting are progress on JPEG XL, JPEG XS, HTJ2K, JPEG Pleno, JPEG Systems and JPEG reference software.

JPEG has been the most common representation format of digital images for more than 25 years. Other image representation formats have been standardised by JPEG committee like JPEG 2000 or more recently JPEG XS. Furthermore, JPEG has been extended with new functionalities like HDR or alpha plane coding with the JPEG XT standard, and more recently with a reference software. Another solutions have been also proposed by different players with limited success. The JPEG committee decided it is the time to create a new working item, named JPEG XL, that aims to develop an image coding standard with increased quality and flexibility combined with a better compression efficiency. The evaluation of the call for proposals responses had already confirmed the industry interest, and development of core experiments has now begun. Several functionalities will be considered, like support for lossless transcoding of images represented with JPEG standard.

A 2nd workshop on media blockchain technologies was held in Lisbon, collocated with the JPEG meeting. Touradj Ebrahimi and Frederik Temmermans opened the workshop with presentations on relevant JPEG activities such as JPEG Privacy and Security. Thereafter, Zekeriya Erkin made a presentation on blockchain, distributed trust and privacy, and Carlos Serrão presented an overview of the ISO/TC 307 standardization work on blockchain and distributed ledger technologies. The workshop concluded with a panel discussion chaired by Fernando Pereira where the interoperability of blockchain and media technologies was discussed. A 3rd workshop is planned during the 83rd meeting to be held in Geneva, Switzerland on March 20th, 2019.

The 82nd JPEG meeting had the following highlights: jpeg82ndpicS

  • The new working item JPEG XL
  • JPEG Pleno
  • JPEG XS
  • HTJ2K
  • JPEG Systems – JUMBF & JPEG 360
  • JPEG reference software

 

The following summarizes various highlights during JPEG’s Lisbon meeting. As always, JPEG welcomes participation from industry and academia in all its standards activities.

JPEG XL

The JPEG Committee launched JPEG XL with the aim of developing a standard for image coding that offers substantially better compression efficiency when compared to existing image formats, along with features desirable for web distribution and efficient compression of high quality images. Subjective tests conducted by two independent research laboratories were presented at the 82nd meeting in Lisbon and indicate promising results that compare favorably with state of the art codecs.

A development software for the JPEG XL verification model is currently being implemented. A series of experiments have been also defined for improving the above model; these experiments address new functionalities such as lossless coding and progressive decoding.

JPEG Pleno

The JPEG Committee has three activities in JPEG Pleno: Light Field, Point Cloud, and Holographic image coding.

At the Lisbon meeting, Part 2 of JPEG Pleno Light Field was refined and a Committee Draft (CD) text was prepared. A new round of core experiments targets improved subaperture image prediction quality and scalability functionality.

JPEG Pleno Holography will be hosting a workshop on March 19th, 2019 during the 83rd JPEG meeting in Geneva. The purpose of this workshop is to provide insights in the status of holographic applications such as holographic microscopy and tomography, displays and printing, and to assess their impact on the planned standardization specification. This workshop invites participation from both industry and academia experts. Information on the workshop can be find at https://jpeg.org/items/20190228_pleno_holography_workshop_geneva_announcement.html

JPEG XS

The JPEG Committee is pleased to announce a new milestone of the JPEG XS project, with the Profiles and Buffer Models (JPEG XS ISO/IEC 21122 Part 2) submitted to ISO for immediate publication as International Standard.

This project aims at standardization of a visually lossless low-latency and lightweight compression scheme that can be used as a mezzanine codec within any AV market. Among the targeted use cases are video transport over professional video links (SDI, IP, Ethernet), real-time video storage, memory buffers, omnidirectional video capture and rendering, and sensor compression (for example in cameras and in the automotive industry). The Core Coding System allows for visually lossless quality at moderate compression rates, scalable end-to-end latency ranging from less than a line to a few lines of the image, and low complexity real time implementations in ASIC, FPGA, CPU and GPU. The new part “Profiles and Buffer Models” defines different coding tools subsets addressing specific application fields and use cases. For more information, interested parties are invited to read the JPEG White paper on JPEG XS that has been recently published on the JPEG website (https://jpeg.org).

 HTJ2K

The JPEG Committee continues its work on ISO/IEC 15444-15 High-Throughput JPEG 2000 (HTJ2K) with the development of conformance codestreams and reference software, improving interoperability and reducing obstacles to implementation.

The HTJ2K block coding algorithm has demonstrated an average tenfold increase in encoding and decoding throughput compared to the block coding algorithm currently defined by JPEG 2000 Part 1. This increase in throughput results in an average coding efficiency loss of 10% or less in comparison to the most efficient modes of the block coding algorithm in JPEG 2000 Part 1, and enables mathematically lossless transcoding to-and-from JPEG 2000 Part 1 codestreams.

JPEG Systems – JUMBF & JPEG 360

At the 82nd JPEG meeting, the Committee DIS ballots were completed, comments reviewed, and the standard progressed towards FDIS text for upcoming ballots on “JPEG Universal Metadata Box Format (JUMBF)” as ISO/IEC 19566-5, and “JPEG 360” as ISO/IEC 19566-6. Investigations continued to generalize the framework to other applications relying on JPEG (ISO/IEC 10918 | ITU-T.81), and JPEG Pleno Light Field.

JPEG reference software

With the JPEG Reference Software reaching FDIS stage, the JPEG Committee reaches an important milestone by extending its specifications with a new part containing a reference software. With its FDIS release, two implementations will become official reference to the most successful standard of the JPEG Committee: The fast and widely deployed libjpeg-turbo code, along with a complete implementation of JPEG coming from the Committee itself that also covers coding modes that were only known by a few experts.

 

Final Quote

“One of the strengths of the JPEG Committee has been in its ability to identify important trends in imaging technologies and their impact on products and services. I am delighted to see that this effort still continues and the Committee remains attentive to future.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG XS, JPEG Systems and JPEG Pleno families of imaging standards.

The JPEG Committee nominally meets four times a year, in different world locations. The 82nd JPEG Meeting was held on 19-25 October 2018, in Lisbon, Portugal. The next 83rd JPEG Meeting will be held on 16-22 March 2019, in Geneva, Switzerland.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 83, Geneva, Switzerland, March 16 to 22, 2019
  • No 84, Brussels, Belgium, July 13 to 19, 2019

 

JPEG Column: 81st JPEG Meeting in Vancouver, Canada

The 81st JPEG meeting was held in Vancouver, British Columbia, Canada, at which significant efforts were put into the analysis of the responses to the call for proposals on the next generation image coding standard, nicknamed JPEG XL, that is expected to provide a solution for image format with improved quality and flexibility, allied with a better compression efficiency. The responses to the call confirms the interest of different parties on this activity. Moreover, the initial  subjective and objective evaluation of the different proposals confirm a significative evolution on both quality and compression efficiency that will be provided by the future standard.

Apart the multiple activities related with several standards development, a workshop on Blockchain technologies was held at Telus facilities in Vancouver, with several talks on Blockchain and Distributed Ledger Technologies, and a Panel where the influence of these technologies on multimedia was analysed and discussed. A new workshop is planned at the 82nd JPEG meeting to be held in Lisbon, Portugal, in January 2019.

The 81st JPEG meeting had the following highlights:JPEG81VancouverCut

  • JPEG Completes Initial Assessment on Responses for the Next Generation Image Coding Standard (JPEG XL);
  • Workshop on Blockchain technology;
  • JPEG XS Core Coding System submitted to ISO for immediate publication as International Standard;
  • HTJ2K achieves Draft International Status;
  • JPEG Pleno defines a generic file format syntax architecture.

The following summarizes various highlights during JPEG’s Vancouver meeting.

JPEG XL completes the initial assessment of responses to the call for proposals

 The JPEG Committee launched the Next Generation Image Coding activity, also referred to as JPEG XL, with the aim of developing a standard for image coding that offers substantially better compression efficiency than existing image formats, along with features desirable for web distribution and efficient compression of high quality images. A Call for Proposals on Next Generation Image Coding was issued at the 79th JPEG meeting.

Seven submissions were received in response to the Call for Proposals. The submissions, along with the anchors, were evaluated in subjective tests by three independent research labs. At the 81st JPEG meeting in Vancouver, Canada, the proposals were evaluated using subjective and objective evaluation metrics, and a verification model (XLM) was agreed upon. Following this selection process, a series of experiments have been designed in order to compare the performance of the current XLM with alternative choices as coding components including those technologies submitted by some of the top performing submissions; these experiments are commonly referred to as core experiments and will serve to further refine and improve the XLM towards the final standard. 

Workshop on Blockchain technology

On October 16th, 2018, JPEG organized its first workshop on Media Blockchain in Vancouver. Touradj Ebrahimi JPEG Convenor and Frederik Temmermans a leading JPEG expert, presented on the background of the JPEG standardization committee and ongoing JPEG activities such as JPEG Privacy and Security. Thereafter, Eric Paquet, Victoria Lemieux and Stephen Swift shared their experiences related to blockchain technology focusing on standardization challenges and formalization, real world adoption in media use cases and the state of the art related to consensus models. The workshop closed with an interactive discussion between the speakers and the audience, moderated by JPEG Requirements Chair Fernando Pereira.

The presentations from the workshop are available for download on the JPEG website. In January 2019, during the 82nd JPEG meeting in Lisbon, Portugal, a 2nd workshop will be organized to continue the discussion and interact with European stakeholders. More information about the program and registration will be made available on jpeg.org.

In addition to the workshop, JPEG issued an updated version of its white paper “JPEG White paper: Towards a Standardized Framework for Media Blockchain and Distributed Ledger Technologies” that elaborates on the blockchain initiative, exploring relevant standardization activities, industrial needs and use cases. The white paper will be further extended in the future with more elaborated use cases and conclusions drawn from the workshops. To keep informed and get involved in the discussion, interested parties are invited to register to the ad hoc group’s mailing list via http://jpeg-blockchain-list.jpeg.org.

WorkshopBlockChainCut

Touradj Ebrahimi, convenor of JPEG, giving the introductory talk in the Workshop on Blockchain technology.


JPEG XS

The JPEG committee is pleased to announce a significant milestone of the JPEG XS project, with the Core Coding System (aka JPEG XS Part-1) submitted to ISO for immediate publication as International Standard. This project aims at the standardization of a near-lossless low-latency and lightweight compression scheme that can be used as a mezzanine codec within any AV market. Among the targeted use cases are video transport over professional video links (SDI, IP, Ethernet), real-time video storage, memory buffers, omnidirectional video capture and rendering, and sensor compression (for example in cameras and in the automotive industry). The Core Coding System allows for visual transparent quality at moderate compression rates, scalable end-to-end latency ranging from less than a line to a few lines of the image, and low complexity real time implementations in ASIC, FPGA, CPU and GPU. Beside the Core Coding System, Profiles and levels (addressing specific application fields and use cases), together with the transport and container formats (defining different means to store and transport JPEG XS codestreams in files, over IP networks or SDI infrastructures) are also being finalized and their expected submission for publication as International Standard is Q1 2019.

HTJ2K

The JPEG Committee has reached a major milestone in the development of an alternative block coding algorithm for the JPEG 2000 family of standards, with ISO/IEC 15444-15 High Throughput JPEG 2000 (HTJ2K) achieving Draft International Status (DIS).

The HTJ2K algorithm has demonstrated an average tenfold increase in encoding and decoding throughput compared to the algorithm currently defined by JPEG 2000 Part 1. This increase in throughput results in an average coding efficiency loss of 10% or less in comparison to the most efficient modes of the block coding algorithm in JPEG 2000 Part 1, and enables mathematically lossless transcoding to and from JPEG 2000 Part 1 codestreams.

The JPEG Committee has begun the development of HTJ2K conformance codestreams and reference software.

JPEG Pleno

The JPEG Committee is currently pursuing three activities in the framework of the JPEG Pleno Standardization: Light Field, Point Cloud and Holographic content coding.

At the Vancouver meeting, a generic file format syntax architecture was outlined that allows for efficient exchange of these modalities by utilizing a box-based file format. This format will enable the carriage of light field, point cloud and holography data, including associated metadata for colour space specification, camera calibration etc. In the particular case of light field data, this will encompass both texture and disparity information.

For coding of point clouds and holographic data, activities are still in exploratory phase addressing the elaboration of use cases and the refinement of requirements for coding such modalities. In addition, experimental procedures are being designed to facilitate the quality evaluation and testing of technologies that will be submitted in later calls for coding technologies. Interested parties active in point cloud and holography related markets and applications, both from industry and academia are welcome to participate in this standardization activity.

Final Quote

“JPEG XL standard will enable a higher quality content while improving on compression efficiency and offering new features useful for emerging multimedia applications. said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG XS, JPEG Systems and JPEG Pleno families of imaging standards.  

The JPEG Committee nominally meets four times a year, in different world locations. The 81st JPEG Meeting was held on 12-19 October 2018, in Vancouver, Canada. The next 82nd JPEG Meeting will be held on 19-25 January 2019, in Lisbon, Portugal.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 82, Lisbon, Portugal, January 19 to 25, 2019
  • No 83, Geneva, Switzerland, March 16 to 22, 2019
  • No 84, Brussels, Belgium, July 13 to 19, 2019

 

JPEG Column: 80th JPEG Meeting in Berlin, Germany

The 80th JPEG meeting was held in Berlin, Germany, from 7 to 13 July 2018. During this meeting, JPEG issued a record number of ballots and output documents, spread through the multiple activities taking place. These record numbers are very revealing of the level of commitment of JPEG standardisation committee. A strong effort is being accomplished on the standardisation of new solutions for the emerging image technologies enabling the interoperability of different systems on the growing market of multimedia. Moreover, it is intended that these new initiatives should provide royalty-free patent licensing solutions at least in one of the available profiles, which shall promote a wider adoption of these future JPEG standards from the consumer market, and applications and systems developers.

A significant progress in low latency and high throughput standardisation initiatives has taken place at Berlin meetings. The new part 15 of JPEG 2000, known as High Throughput JPEG 2000 (HTJ2K), is finally ready and reached committee draft status. Furthermore, JPEG XS profiles and levels were released for their second and final ballot. Hence, these new low complexity standards foresee to be finalised in a short time, providing new solutions for developers and consumers on applications where mobility is important and large bandwidth is available. Virtual and augmented reality, as well as 360º images and video, are among the several applications that might benefit from these new standards.

Berlin80T1cut

JPEG meeting plenary in Berlin.

The 80th JPEG meeting had the following highlights:

  • HTJ2K reaches Committee Draft status;
  • JPEG XS profiles and levels are under ballot;
  • JPEG XL publishes additional information to the CfP;
  • JPEG Systems – JUMBF & JPEG 360;
  • JPEG-in-HEIF;
  • JPEG Blockchain white paper;
  • JPEG Pleno Light Field verification model.

The following summarizes the various highlights during JPEG’s Berlin meeting.

HTJ2K

The JPEG committee is pleased to announce a significant milestone, with ISO/IEC 15444-15 High-Throughput JPEG 2000 (HTJ2K) reaching Committee Draft status.

HTJ2K introduces a new FAST block coder to the JPEG 2000 family. The FAST block coder can be used in place of the JPEG 2000 Part 1 arithmetic block coder, and, as illustrated in Table 1, offers in average an order of magnitude increase on decoding and encoding throughput – at the expense of slightly reduced coding efficiency and elimination of quality scalability.

Table 1. Comparison between FAST block coder and JPEG 2000 Part 1 arithmetic block coder. Results were generated by optimized implementations evaluated as part of the HTJ2K activity, using professional video test images in the transcoding context specified in the Call for Proposal available at https://jpeg.org.  Figures are relative to JPEG2000 Part1 arithmetic block coder (bpp – bits per pixel).

JPEG 2000 Part 1 Block Coder Bitrate 0.5 bpp 1 bpp 2 bpp 4 bpp 6 bpp lossless
Average FAST Block Coder Speedup Factor 17.5x 19.5x 21.1x 25.5x 27.4x 43.7x
Average FAST Block Decoder Speedup Factor 10.2x 11.4x 11.9x 14.1x 15.1x 24.0x
Average Increase in Codestream Size  8.4%  7.3%   7.1% 6.6%  6.5%  6.6% 

Apart from the block coding algorithm itself, the FAST block coding algorithm does not modify the JPEG 2000 codestream, and allows mathematically lossless transcoding to and from JPEG 2000 codestreams. As a result the FAST block coding algorithm can be readily integrated into existing JPEG 2000 applications, where it can bring significant increases in processing efficiency. 

 

JPEG XS

This project aims at the standardization of a visually lossless low-latency and lightweight compression scheme that can be used as a mezzanine codec for the broadcast industry, Pro-AV and other markets. Targeted use cases are video transport over professional video links (SDI, IP, Ethernet), real-time video storage, memory buffers, omnidirectional video capture and rendering, and sensor compression (in particular in the automotive industry). The Core Coding System, expected to be published in Q4 2018 allows for visually lossless quality at 6:1 compression ratio for most content, 32 lines end-to-end latency, and ultra low complexity implementations in ASIC, FPGA, CPU and GPU. Following the 80th JPEG meeting in Berlin, profiles and levels (addressing specific application fields and use cases) are now under final ballot (expected publication in Q1 2019). Different means to store and transport JPEG XS codestreams in files, over IP networks or SDI infrastructures are also defined and go to a first ballot.

 

JPEG XL

The JPEG Committee issued a Call for Proposals (CfP) following its 79th meeting (April 2018), with the objective of seeking technologies that fulfill the objectives and scope of the Next-Generation Image Coding activity. The CfP, with all related info, can be found in https://jpeg.org/downloads/jpegxl/jpegxl-cfp.pdf. The deadline for expression of interest and registration was August 15, 2018, and submissions to the CfP were due on September 1, 2018. 

As outcome of the 80th JPEG meeting in Berlin, a document was produced containing additional information related to the objective and subjective quality assessment methodologies that will be used to evaluate the anchors and proposals to the CfP, available on https://jpeg.org/downloads/jpegxl/wg1n80024-additional-information-cfp.pdf. Moreover, a detailed workflow is described, together with the software and command lines used to generate the anchors and to compute objective quality metrics.

To stay posted on the action plan of JPEG XL, please regularly consult our website at jpeg.org and/or subscribe to its e-mail reflector.

 

JPEG Systems – JUMBF & JPEG 360

The JPEG Committee progressed towards a common framework and definition for metadata which will improve the ability to share 360 images. At the 80th meeting, the Committee Draft ballot was completed, the comments reviewed, and is now progressing towards DIS text for upcoming ballots on “JPEG Universal Metadata Box Format (JUMBF)” as ISO/IEC 19566-5, and “JPEG 360” as ISO/IEC 19566-6. Investigations have started to apply the framework on the structure of JPEG Pleno files.

 

JPEG-in-HEIF

The JPEG Committee made significant progress towards standardizing how JPEG XR, JPEG 2000 and the upcoming JPEG XS will be carried in ISO/IEC 23008-12 image file container.

 

JPEG Blockchain

Fake news, copyright violation, media forensics, privacy and security are emerging challenges for digital media. JPEG has determined that blockchain technology has great potential as a technology component to address these challenges in transparent and trustable media transactions. However, blockchain needs to be integrated closely with a widely adopted standard to ensure broad interoperability of protected images. JPEG calls for industry participation to help define use cases and requirements that will drive the standardization process. To reach this objective, JPEG issued a white paper entitled “Towards a Standardized Framework for Media Blockchain” that elaborates on the initiative, exploring relevant standardization activities, industrial needs and use cases. In addition, JPEG plans to organise a workshop during its 81st meeting in Vancouver on Tuesday 16th October 2018. More information about the workshop is available on https://www.jpeg.org. To keep informed and get involved, interested parties are invited to register on the ad hoc group’s mailing list at http://jpeg-blockchain-list.jpeg.org.

 

JPEG Pleno

The JPEG Committee is currently pursuing three activities in the framework of the JPEG Pleno Standardization: Light Field, Point Cloud and Holographic content coding.

At its Berlin meeting, a first version of the verification model software for light field coding has been produced. This software supports the core functionality that was indented for the light field coding standard. It serves for intensive testing of the standard. JPEG Pleno Light Field Coding supports various sensors ranging from lenslet cameras to high-density camera arrays, light field related content production chains up to light field displays.

For coding of point clouds and holographic data, activities are still in exploratory phase addressing the elaboration of use cases and the refinement of requirements for coding such modalities. In addition, experimental procedures are being designed to facilitate the quality evaluation and testing of technologies that will be submitted in later calls for coding technologies. Interested parties active in point cloud and holography related markets and applications, both from industry and academia are welcome to participate in this standardization activity.

 

Final Quote 

“After a record number of ballots and output documents generated during its 80th meeting, the JPEG Committee pursues its activity on the specification of effective and reliable solutions for image coding offering needed features in emerging multimedia applications. The new JPEG XS and JPEG 2000 part 15 provide low complexity compression solutions that will benefit many growing markets such as content production, virtual and augmented reality as well as autonomous cars and drones.” said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

 

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JBIG, JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG XS, JPEG Systems and JPEG Pleno families of imaging standards.

The JPEG Committee nominally meets four times a year, in different world locations. The 80th JPEG Meeting was held on 7-13 July 2018, in Berlin, Germany. The next 81st JPEG Meeting will be held on 13-19 October 2018, in Vancouver, Canada.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

 

Future JPEG meetings are planned as follows:JPEG-signature

  • No 81, Vancouver, Canada, October 13 to 19, 2018
  • No 82, Lisbon, Portugal, January 19 to 25, 2019
  • No 83, Geneva, Switzerland, March 16 to 22, 2019

JPEG Column: 79th JPEG Meeting in La Jolla, California, U.S.A.

The JPEG Committee had its 79th meeting in La Jolla, California, U.S.A., from 9 to 15 April 2018.

During this meeting, JPEG had a final celebration of the 25th anniversary of its first JPEG standard, usually known as JPEG-1. This celebration coincides with two interesting facts. The first was the approval of a reference software for JPEG-1, “only” after 25 years. At the time of approval of the first JPEG standard a reference software was not considered, as it is common in recent image standards. However, the JPEG committee decided that was still important to provide a reference software, as current applications and standards can largely benefit on this specification. The second coincidence was the launch of a call for proposals for a next generation image coding standard, JPEG XL. This standard will define a new representation format for Photographic information, that includes the current technological developments, and can become an alternative to the 25 years old JPEG standard.

An informative two-hour JPEG Technologies Workshop marked the 25th anniversary celebration on Friday April 13, 2018. The workshop had presentations of several committee members on the current and future JPEG committee activity, with the following program:

IMG_4560

Touradj Ebrahimi, convenor of JPEG, presenting an overview of JPEG technologies.

  • Overview of JPEG activities, by Touradj Ebrahimi
  • JPEG XS by Antonin Descampe and Thomas Richter
  • HTJ2K by Pierre-Anthony Lemieux
  • JPEG Pleno – Light Field, Point Cloud, Holography by Ioan Tabus, Antonio Pinheiro, Peter Schelkens
  • JPEG Systems – Privacy and Security, 360 by Siegfried Foessel, Frederik Temmermans, Andy Kuzma
  • JPEG XL by Fernando Pereira, Jan De Cock

After the workshop, a social event was organized where a past JPEG committee Convenor, Eric Hamilton was recognized for key contributions to the JPEG standardization.

La Jolla JPEG meetings comprise mainly the following highlights:

  • Call for proposals of a next generation image coding standard, JPEG XL
  • JPEG XS profiles and levels definition
  • JPEG Systems defines a 360 degree format
  • HTJ2K
  • JPEG Pleno
  • JPEG XT
  • Approval of the JPEG Reference Software

The following summarizes various activities during JPEG’s La Jolla meeting.

JPEG XL

Billions of images are captured, stored and shared on a daily basis demonstrating the self-evident need for efficient image compression. Applications, websites and user interfaces are increasingly relying on images to share experiences, stories, visual information and appealing designs.

User interfaces can target devices with stringent constraints on network connection and/or power consumption in bandwidth constrained environments. Even though network capacities are improving globally, bandwidth is constrained to levels that inhibit application responsiveness in many situations. User interfaces that utilize images containing larger resolutions, higher dynamic ranges, wider color gamuts and higher bit depths, further contribute to larger volumes of data in higher bandwidth environments.

The JPEG Committee has launched a Next Generation Image Coding activity, referred to as JPEG XL. This activity aims to develop a standard for image coding that offers substantially better compression efficiency than existing image formats (e.g. more than 60% improvement when compared to the widely used legacy JPEG format), along with features desirable for web distribution and efficient compression of high-quality images.

To this end, the JPEG Committee has issued a Call for Proposals following its 79th meeting in April 2018, with the objective of seeking technologies that fulfill the objectives and scope of a Next Generation Image Coding. The Call for Proposals (CfP), with all related info, can be found at jpeg.org. The deadline for expression of interest and registration is August 15, 2018, and submissions to the Call are due September 1, 2018. To stay posted on the action plan for JPEG XL, please regularly consult our website at jpeg.org and/or subscribe to our e-mail reflector.

 

JPEG XS

This project aims at the standardization of a visually lossless low-latency lightweight compression scheme that can be used as a mezzanine codec for the broadcast industry, Pro-AV and other markets such as VR/AR/MR applications and autonomous cars. Among important use cases identified one can mention in particular video transport over professional video links (SDI, IP, Ethernet), real-time video storage, memory buffers, omnidirectional video capture and rendering, and sensor compression in the automotive industry. During the La Jolla meeting, profiles and levels have been defined to help implementers accurately size their design for their specific use cases. Transport of JPEG XS over IP networks or SDI infrastructures, are also being specified and will be finalized during the next JPEG meeting in Berlin (July 9-13, 2018). The JPEG committee therefore invites interested parties, in particular coding experts, codec providers, system integrators and potential users of the foreseen solutions, to contribute to the specification process. Publication of the core coding system as an International Standard is expected in Q4 2018.

 

JPEG Systems – JPEG 360

The JPEG Committee continues to make progress towards its goals to define a common framework and definitions for metadata which will improve the ability to share 360 images and provide the basis to enable new user interaction with images.  At the 79th JPEG meeting in La Jolla, the JPEG committee received responses to a call for proposals it issued for JPEG 360 metadata. As a result, JPEG Systems is readying a committee draft of “JPEG Universal Metadata Box Format (JUMBF)” as ISO/IEC 19566-5, and “JPEG 360” as ISO/IEC 19566-6.  The box structure defined by JUMBF allows JPEG 360 to define a flexible metadata schema and the ability to link JPEG code streams embedded in the file. It also allows keeping unstitched image elements for omnidirectional captures together with the main image and descriptive metadata in a single file.  Furthermore, JUMBF lays the groundwork for a uniform approach to integrate tools satisfying the emerging requirements for privacy and security metadata.

To stay posted on JPEG 360, please regularly consult our website at jpeg.org and/or subscribe to the JPEG 360 e-mail reflector. 

 

HTJ2K

High Throughput JPEG 2000 (HTJ2K) aims to develop an alternate block-coding algorithm that can be used in place of the existing block coding algorithm specified in ISO/IEC 15444-1 (JPEG 2000 Part 1). The objective is to significantly increase the throughput of JPEG 2000, at the expense of a small reduction in coding efficiency, while allowing mathematically lossless transcoding to and from codestreams using the existing block coding algorithm.

As a result of a Call for Proposals issued at its 76th meeting, the JPEG Committee has selected a block-coding algorithm as the basis for Part 15 of the JPEG 2000 suite of standards, known as High Throughput JPEG 2000 (HTJ2K). The algorithm has demonstrated an average tenfold increase in encoding and decoding throughput, compared to the algorithms based on JPEG 2000 Part 1. This increase in throughput results in less than 15% average loss in coding efficiency, and allows mathematically lossless transcoding to and from JPEG 2000 Part 1 codestreams.

A Working Draft of Part 15 to the JPEG 2000 suite of standards is now under development.

 

JPEG Pleno

The JPEG Committee is currently pursuing three activities in the framework of the JPEG Pleno Standardization: Light Field, Point Cloud and Holographic content coding.

JPEG Pleno Light Field finished a third round of core experiments for assessing the impact of individual coding modules and started work on creating software for a verification model. Moreover, additional test data has been studied and approved for use in future core experiments. Working Draft documents for JPEG Pleno specifications Part 1 and Part 2 were updated. A JPEG Pleno Light Field AhG was established with mandates to create a common test conditions document; perform exploration studies on new datasets, quality metrics, and random-access performance indicators; and to update the working draft documents for Part 1 and Part 2.

Furthermore, use cases were studied and are under consideration for JPEG Pleno Point Cloud. A current draft list is under discussion for the next period and will be updated and mapped to the JPEG Pleno requirements. A final document on use cases and requirements for JPEG Pleno Point Cloud is expected at the next meeting.

JPEG Pleno Holography has reviewed the draft of a holography overview document. Moreover, the current databases were classified according to use cases, and plans to analyze numerical reconstruction tools were established.

 

JPEG XT

The JPEG Committee released two corrigenda to JPEG XT Part 1 (core coding system) and JPEG XT Part 8 (lossless extension JPEG-1). These corrigenda clarify the upsampling procedure for chroma-subsampled images by adopting the centered upsampling in use by JFIF.

 

JPEG Reference Software

The JPEG Committee is pleased to announce that the CD ballot for Reference Software has been issued for the original JPEG-1 standard. This initiative closes a long-standing gap in the legacy JPEG standard by providing two reference implementations for this widely used and popular image coding format.

Final Quote

The JPEG Committee is hopeful to see its recently launched Next Generation Image Coding, JPEG XL, can result in a format that will become as important for imaging products and services as its predecessor was; the widely used and popular legacy JPEG format which has been in service for a quarter of century. said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JBIG, JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG XS, JPEG Systems and JPEG Pleno families of imaging standards.

The JPEG Committee nominally meets four times a year, in different world locations. The 79th JPEG Meeting was held on 9-15 April 2018, in La Jolla, California, USA. The next 80th JPEG Meeting will be held on 7-13, July 2018, in Berlin, Germany.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

 

Future JPEG meetings are planned as follows:JPEG-signature

  • No 80, Berlin, Germany, July 7 to13, 2018
  • No 81, Vancouver, Canada, October 13 to 19, 2018
  • No 82, Lisbon, Portugal, January 19 to 25, 2019

JPEG Column: 78th JPEG Meeting in Rio de Janeiro, Brazil

The JPEG Committee had its 78th meeting in Rio de Janeiro, Brazil. Relevant to its ongoing standardization efforts in JPEG Privacy and Security, JPEG organized a special session to explore how to support blockchain and distributed ledger technologies to past, ongoing and future JPEG family of standards. This is motivated by the fact that considering the potential impact of such technologies in the future of multimedia, standardization will be required to enable interoperability between different systems and services of imaging relying on blockchain and distributed ledger technologies.

Blockchain and distributed ledger technologies are behind the well-known crypto-currencies. These technologies can provide means for content authorship, or intellectual property and rights management control of the multimedia information. New possibilities can be made available, namely support for tracking online use of copyrighted images and ownership of the digital content.

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JPEG meeting session.

Rio de Janeiro JPEG meetings comprise mainly the following highlights:

  • JPEG explores blockchain and distributed ledger technologies
  • JPEG 360 Metadata
  • JPEG XL
  • JPEG XS
  • JPEG Pleno
  • JPEG Reference Software
  • JPEG 25th anniversary of the first JPEG standard

The following summarizes various activities during JPEG’s Rio de Janeiro meeting.

JPEG explores blockchain and distributed ledger technologies

During the 78th JPEG meeting in Rio de Janeiro, the JPEG committee organized a special session on blockchain and distributed ledger technologies and their impact on JPEG standards. As a result, the committee decided to explore use cases and standardization needs related to blockchain technology in a multimedia context. Use cases will be explored in relation to the recently launched JPEG Privacy and Security, as well as in the broader landscape of imaging and multimedia applications. To that end, the committee created an ad hoc group with the aim to gather input from experts to define these use cases and to explore eventual needs and advantages to support a standardization effort focused on imaging and multimedia applications. To get involved in the discussion, interested parties can register to the ad hoc group’s mailing list. Instructions to join the list are available on http://jpeg-blockchain-list.jpeg.org

JPEG 360 Metadata

The JPEG Committee notes the increasing use of multi-sensor images from multi-sensor devices, such as 360 degree capturing cameras or dual-camera smartphones available to consumers. Images from these cameras are shown on computers, smartphones, and Head Mounted Displays (HMDs). JPEG standards are commonly used for image compression and file format. However, because existing JPEG standards do not fully cover these new uses, incompatibilities have reduced the interoperability of their images, and thus reducing the widespread ubiquity, which consumers have come to expect when using JPEG files. Additionally, new modalities for interacting with images, such as computer-based augmentation, face-tagging, and object classification, require support for metadata that was not part of the original scope of JPEG.  A set of such JPEG 360 use cases is described in JPEG 360 Metadata Use Cases document. 

To avoid fragmentation in the market and to ensure wide interoperability, a standard way of interacting with multi-sensor images with richer metadata is desired in JPEG standards. JPEG invites all interested parties, including manufacturers, vendors and users of such devices to submit technology proposals for enabling interactions with multi-sensor images and metadata that fulfill the scope, objectives and requirements that are outlined in the final Call for Proposals, available on the JPEG website.

To stay posted on JPEG 360, please regularly consult our website at jpeg.org and/or subscribe to the JPEG 360 e-mail reflector.

JPEG XL

The Next-Generation Image Compression activity (JPEG XL) has produced a revised draft Call for Proposals, and intends to publish a final Call for Proposals (CfP) following its 79th meeting (April 2018), with the objective of seeking technologies that fulfill the objectives and scope of the Next-Generation Image Compression. During the 78th meeting, objective and subjective quality assessment methodologies for anchor and proposal evaluations were discussed and analyzed. As outcome of the meeting, source code for objective quality assessment has been made available.

The draft Call for Proposals, with all related info, can be found in JPEG website. Comments are welcome and should be submitted as specified in the document. To stay posted on the action plan for JPEG XL, please regularly consult our website at jpeg.org and/or subscribe to our e-mail reflector.

 

JPEG XS

Since its previous 77th meeting, subjective quality evaluations have shown that the initial quality requirement of the JPEG XS Core Coding System has been met, i.e. a visually lossless quality at a compression ratio of 6:1 for large majority of images under test has been met. Several profiles are now under development in JPEG XS, as well as transport and container formats. JPEG committee therefore invites interested parties – in particular coding experts, codec providers, system integrators and potential users of the foreseen solutions – to contribute to the furthering of the specifications in the above directions. Publication of the International Standard is expected for Q3 2018.

JPEG Pleno

JPEG Pleno activity is currently divided into Pleno Light Field, Pleno Point Cloud and Pleno Holography. JPEG Pleno Light Field has been preparing a third round of core experiments for assessing the impact of individual coding modules on the overall rate-distortion performance. Moreover, it was decided to pursue with collecting additional test data, and progress with the preparation of working documents for JPEG Pleno specifications Part 1 and Part 2.

Furthermore, quality modelling studies are under consideration for both JPEG Pleno Point Clouds, and JPEG Pleno Holography. In particular, JPEG Pleno Point Cloud is considering a set of new quality metrics provided as contributions to this work item. It is expected that the new metrics replace the current state of the art as they have shown superior correlation with subjective quality as perceived by humans. Moreover, new subjective assessment models have been tested and analysed to better understand the perception of quality for such new types of visual information.

JPEG Reference Software

The JPEG committee is pleased to announce that its first JPEG image coding specifications is now augmented by a new part, ISO/IEC 10918-7, that contains a reference software. The proposed candidate software implementations have been checked for compliance with 10918-2. Considering the positive results, this new part of the JPEG standard will continue to evolve quickly. 

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JPEG meeting room window view during a break.

JPEG 25th anniversary of the first JPEG standard

JPEG’s first standard third and final 25th anniversary celebration is planned at its next 79th JPEG meeting taking place in La Jolla, CA, USA. The anniversary will be marked by a 2 hours workshop on Friday 13th April on current and emerging JPEG technologies, followed by a social event where past JPEG committee members with relevant contributions will be awarded.

Final Quote

“Blockchain and distributed ledger technologies promise a significant impact on the future of many fields. JPEG is committed to provide standard mechanisms to apply blockchain on multimedia applications in general and on imaging in particular. said Prof. Touradj Ebrahimi, the Convenor of the JPEG Committee.

 

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JBIG, JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG XS, JPEG Systems and JPEG Pleno families of imaging standards.

The JPEG Committee meets nominally four times a year, in different world locations. The latest 77th meeting was held from 21st to 27th of October 2017, in Macau, China. The next 79th JPEG Meeting will be held on 9-15 April 2018, in La Jolla, California, USA.

More information about JPEG and its work is available at www.jpeg.org or by contacting Antonio Pinheiro or Frederik Temmermans (pr@jpeg.org) of the JPEG Communication Subgroup.

If you would like to stay posted on JPEG activities, please subscribe to the jpeg-news mailing list on http://jpeg-news-list.jpeg.org.  

Future JPEG meetings are planned as follows:

  • No 79, La Jolla (San Diego), CA, USA, April 9 to 15, 2018
  • No 80, Berlin, Germany, July 7 to13, 2018
  • No 81, Vancouver, Canada, October 13 to 19, 2018