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JPEG Press Release - 47th WG1 meeting, San Francisco, USA

Press Release For immediate release
Contact Louis Sharpe (pr@jpeg.org)
San Francisco, California, USA, January 23, 2009

JPEG XR for Digital Cameras Nears Completion


The Joint Photographic Experts Group (JPEG) is a working group of ISO/IEC, the International Organisation for Standardization / International Electrotechnical Commission, (ISO/IEC
JTC1/SC29/WG1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG and, more recently, the JPEG 2000 family of imaging standards. The WG1 group meets three times a year, in Europe, North America and Asia. The latest meeting was held January 19-23, 2009, in San Francisco, California, hosted by US National Body with delegates from 10 countries.

JPEG XR is a new compression format supporting high dynamic range and promises to bring a new level of successful user experience to users of digital cameras.
JPEG XR advanced to draft international standard balloting at the San Francisco meeting, entering the final phases of standardization and freezing the specification for implementers. The committee expects the JPEG XR International Standard (IS) to be published later this year. The JPEG committee is hosting a meeting to provide a special preview of the standard and discuss possible approaches to raw file compression. JPEG XR offers the potential to give cost and compression benefits to users producing high-quality, high dynamic-range images. The committee invites collaboration with camera manufacturers and other digital photography stakeholders by attending the meeting to be held in Tokyo on 18 and 19 February 2009. Interested parties should contact the ad hoc group chairs Gen Sasaki (sasaki.gen@megachips.co.jp) or Gary Sullivan (garysull@microsoft.com) for details.

JPEG 2000 Part 9, also known as JPIP, allows powerful and efficient network access to JPEG 2000 images and their metadata in a way that exploits the best features of the JPEG 2000 standard. JPIP provides a protocol for flexible network access to images via progressive quality and region-based requests, allowing access to large images from limited capability devices such as cell phones and mobile internet devices. Several companies within the JPIP ad hoc group performed independent testing of a new semi-automated test package and found one issue and updated the utility softwarepackage used to run these tests. The ad hoc group continues to support testing to help new companies using JPIP to validate the correctness of their implementations. Amendment 4 of JPIP is now moving to FPDAM status.

Part 10 of JPEG 2000, JP3D, was published as an International Standard in December 2008. This provides excellent coding performance and functionality for representation of three dimensional volumetric data sets such as medical diagnostic images, biological data, weather and scientific data. The standard, ITU T-809 (or ISO 15444-10) is available for free at http://itu.int

The Digital Cinema (DC) ad hoc group within the JPEG committee has been very active and successful in seeing their work adopted by the industry. The Digital Cinema Initiatives
(www.dcimovies.com) organization has adopted JPEG 2000 for distribution of digital movies to theatres. The DC ad hoc group in JPEG is developing a digital movie archive format by creating profiles via amendments to JPEG 2000 Part 1 (now at FDAM status) and to Part 3, Motion JPEG 2000 (now at FPDAM status). The broadcast ad hoc group is also creating profiles for JPEG 2000 use in broadcast production applications such as camera to truck and truck to studio links.

The Advanced Image Coding (AIC) ad hoc group defined subjective tests for JPEG XR and designed test criteria for evaluation of several objective metrics. The AIC ad hoc group invites
parties to submit objective metrics for general testing of compression algorithms.

JBIG2 is a compression standard for bitonal images which is widely used due to support for it within PDF files. Amendment 4 of JBIG2 (now at the working draft stage) aims to create a color version of JBIG2 to support the need for efficient compression of document images having limited or spot color.

JPSearch (ISO/IEC 24800, Still Image Search) is a project that aims to develop a standard framework for searching large collections of images. A draft Technical Report covering the
Framework and System Components has been created.

JPEG 2000 Part 8: Secure JPEG 2000, also known as JPSEC, has passed the balloting process and is now formally an ISO Standard (ISO/IEC 15444-8). The JPSEC standard addresses security services for JPEG 2000 images and thus jointly addresses security and media compression in a single specification. This combination allows protected images to retain all the JPEG 2000 system features such as scalability, JPIP network browsing, simple transcodability and progression to lossless. JPSEC offers exciting opportunities for secure global distribution and e-commerce for digital images, allowing storage of partially or fully encrypted content,while still retaining the ability to adaptively deliver content for a wide variety of devices with varying display capabilities.

JPEG 2000 Part 11: Wireless, also known as JPWL, has become an International Standard. JPWL has standardised tools and methods to achieve the efficient transmission of JPEG 2000 imagery over an error-prone wireless system. The JPWL ad hoc group has released reference software at openjpeg.org and has created test bitstreams for compliance testing.

JPEG 2000 Part 6, also known as JPM, defines a file format for document images incorporating multiple layered compression formats and a Hidden Text XML (HTX) data format to store OCR results in image files.

JPEG 2000 Part 13 defines an entry level JPEG 2000 encoder with widespread applications and is now an international standard.

One presentation was given at the meeting in a plenary session.

  • JPEG-XR Error Protection, Dr. Fabrizio Frescura, University of Perugia, Italy

"With JPEG XR nearing completion, the JPEG committee has provided a new path to profitability
for camera manufacturers and an improved user experience and photo success rate for consumers,"
said Dr. Daniel Lee of eBay Inc., Convener of the JPEG Group.

The JPEG web site (http://www.jpeg.org) has sponsorship opportunities for all companies involved i 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, 48th WG1 Meeting will be held in Maui, Hawaii, USA, hosted by the US National Body, April 20-24, 2009.

More information at www.jpeg.org or by contacting Lou Sharpe, PR Chair at pr@jpeg.org.


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