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JPEG Press Release - 49th WG1 Sardinia Meeting
Press Release For immediate release
Contact Louis Sharpe (pr@jpeg.org)
Pula, Sardinia, Italy, July 17, 2009

JPEG Committee Issues Call for Advanced Image Coding Technologies

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 and more recently, the JPSearch, JPEG XR families of imaging standards. The WG1 group meets nominally three times a year, in Europe, North America and Asia.
The latest meeting was held on July 13 - 17, 2009, in the Polaris Technology Park, Pula, Sardinia, Italy, hosted by the Italian National Body.

The Advanced Image Coding and Evaluation Methodologies (ISO/IEC 29170 - AIC) ad hoc group is working on a technical report on evaluation methodologies to help in the definition and refinement of coding techniques. AIC is issuing two calls for requirements and technologies: one for medical imaging and one for camera sensor data interchange and archival applications.

JPEG XR (ISO/IEC 29199-2) is now an International Standard and also an ITU-T Recommendation (T.832). New work has been started to enable the use of JPEG XR image coding within the JPIP protocol, which allows interactive browsing of networked images. The Motion JPEG XR specification for support of video sequences is currently approaching the Final Committee Draft phase of the ISO/IEC approval process. WG 1 is pleased to note the successful completion of JPEG XR verification testing experiments for low dynamic range images.

The JPEG File Interchange Format (JFIF) has been a popular file format for images encoded by the JPEG standard (ISO/IEC 10918-1 | ITU-T T.81). The JPEG Committee has now created a Committee Draft of a new JPEG Part 5 (10918-5) which officially standardizes JFIF. This standard will provide an opportunity to include new developments relating to image metadata such as JPSearch metadata into the JFIF file format.

JPSearch (ISO/IEC 24800, Still Image Search), Part 4 (File Format for Metadata Embedded inImage Data) is promoted to Final Committee Draft. Part 5 (Data Interchange Format between Image Repositories) is promoted to Committee Draft. The JPSearch ad hoc group issued a call for proposals for reference software for Part 6 (ISO/IEC 24800 - 6, JPSearch Reference Software).

The Digital Cinema (DC) ad hoc group has been very successful in seeing its work adopted by the industry. The ad hoc group created a new amendment (ISO/IEC 15444-1 Amendment 5) to add additional frame rates to the digital cinema distribution and archive profiles which allows support for a wide range of content source types. The group also defined new visual weighting factors (ISO/IEC 15444-1 Amendment 3) for digital cinema presentation that are being evaluated. The broadcast application sub-group has progressed the new broadcast profiles. Comments and requirements are welcome and can be sent to JPEG Committee.

The JPEG 2000 Part 9 - JPIP standard for network access to images has passed through interoperability testing between several vendors using different implementations. Servers and clients from different vendors were shown to fulfill interoperability, demonstrating JPIP's utility as a vendor-independent interchange method. Supporting information will be available to the general public on the www.jpeg.org web site along with test streams to assist developers in developing new
implementations. A paper is being published which developers should also find useful: Richter, Brower, Martucci , and Tzannes: Interoperability in JPIP and its Standardization in JPEG 2000 Part 9, In: A.Tescher (Ed.): Applications of Digital Image Processing XXXII, Proc. SPIE 2009. A new amendment to JPIP will be added to better support UDP transport (in addition to TCP/IP transport).

The JBIG committee continued its work on the color amendment to JBIG2. This will allow images of office documents which contain only "spot" color to be more efficiently compressed than by the use of standard baseline JPEG.

The JPWL ad hoc group advanced Amendment 1 of JPWL (ISO/IEC 15444-11) to PDAM status. This allows use of the JPWL syntax and tools over error prone IP networks.

The following presentations were made at plenary sessions:

  • "Browsing large collections of geo-tagged images," by Davide Carboni, Geoweb & Mobile
    Lab CRS4, Italy.
  • "Super-resolution reconstruction of video sequences based on back-projection and motion
    estimation," by Tiziana Dessi, University of Cagliari, Italy.
  • "Wireless JPEG2000 Applications," by Fabrizio Frescura, Advanced Research and
    Technologies Group, Italy.
  • "A Grouplet-Based Reduced Reference Image Quality Assessment," by Mohamed-Chaker
    Larabi, University of Poitiers, France.
  • "Presentation of I3A, the International Imaging Industry Association," by Jean Barda, I3A.

"We are excited to issue two calls for requirements and technologies in medical imaging and interchange of camera sensor data as the first two vertical areas for the Advanced Image Coding standards," said Dr. Daniel Lee of eBay Inc., Convener of the JPEG committee.

The JPEG web site (http://www.jpeg.org) has sponsorship opportunities for all companies involved in developments around JPEG. The marketing departments of interested companies should contact the webmaster, Richard Clark (webmaster@jpeg.org), for this high-traffic site.

The next (50th) WG 1 Meeting will be held in Xian, China, hosted by the Chinese National Body, October 26 - 30, 2009.
More information about JPEG and its work is available at www.jpeg.org or by contacting Lou Sharpe, the JPEG PR Chair at pr@jpeg.org.

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