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IEEE Signal Processing Society Santa Clara Valley Chapter





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Thursday, February 18, 2016

JPEG Emerging Standards

This meeting is hosted/sponsored by IEEE SPS Chapter and co-sponsored by IEEE CES & ITS Chapters

Speaker :

   Prof. Dr. Touradj Ebrahimi

   JPEG Convener

   Ecole Polytechnique Federale de Lausanne - EPFL

   Institute of Electrical Engineering - IEL

   Multimedia Signal Processing Group - MMSPG



   AMD Commons C-6/7/8, 991 Stewart Dr., Sunnyvale, CA (map or Google Maps)



   6:30pm: Networking/Light Dinner

   7:00pm: Announcements

   7:05pm: Presentation

   8:15pm: Adjourn



   Free. Donation accepted for food.



JPEG standardisation committee has played an important role in the digital revolution in the last quarter of century. The legacy JPEG format, which became an international standard 21 years ago is the dominant picture format in many imaging applications. This dominance does not seem to slow down when observing that the number of JPEG images uploaded to social networks alone has surpassed 2 billions per day in 2014, when compared to less than a 1 billion the year before. JPEG 2000, which became an international standard 15 years ago, has been the format of choice in a number of professional applications, among which contribution in broadcast and digital cinema are two examples.

The ever changing requirements in multimedia applications, have created new challenges in imaging for which solutions should be found. Among others, content annotation, search and management, security and in particular privacy, efficient low complexity and low latency storage and transmission, seamless communication, new imaging modalities, and enhanced imaging experiences are just a few examples of challenges to which scientific community, industry, service providers, and entrepreneurs need to respond.

This talk starts by providing an overview of a recently developed image format to deal with High Dynamic Range content called JPEG XT. JPEG XT has been defined to be backward compatible with the legacy JPEG format in order to facilitate its use in current imaging ecosystem.

We will then discuss JPEG PLENO, a recent initiative by JPEG committee to address an emerging modality in imaging, namely, plenoptic imaging. "Pleno" is a reference to "Plenoptic" a mathematical representation, which not only provides color information of a specific point in a scene, but also how it changes when observed from different directions and distances. "Pleno" is also the latin word for "complete", a reference to the vision of the JPEG committee that believes future imaging will provide a more complete description of scenes well beyond what is possible today.

The road-map for JPEG Pleno follows a path that starts in 2015 and will continue beyond 2020, with the objective of making the same type of impact that the original JPEG format has had on today's digital imaging starting from 20 years ago. Several milestones are in work to approach the ultimate image representation in well-thought, precise, and useful steps. Each step could potentially offer an enhanced experience when compared to the previous, immediately ready to be used in applications.

The talk will conclude with an quick overview of two potential standardisation initiatives under investigation. The first, referred to as JPEG Privacy & Security facilitates protections and security in legacy JPEG images, such as coping with privacy concerns. The second called JPEG XS puts an emphasis on low latency, low complexity and transparent quality as well as low cost, desirable in a number of applications, including broadcasting and high bandwidth links between devices and displays.


Touradj EBRAHIMI received his M.Sc. and Ph.D., both in Electrical Engineering, from the Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland, in 1989 and 1992 respectively. In 1993, he was a research engineer at the Corporate Research Laboratories of Sony Corporation in Tokyo, where he conducted research on advanced video compression techniques for storage applications. In 1994, he served as a research consultant at AT&T Bell Laboratories working on very low bitrate video coding. He is currently Professor at EPFL heading its Multimedia Signal Processing Group. He was also adjunct Professor with the Center of Quantifiable Quality of Service at Norwegian University of Science and Technology (NTNU)between 2008 and 2012.

Prof. Ebrahimi has been the recipient of various distinctions and awards, such as the IEEE and Swiss national ASE award, the SNF-PROFILE grant for advanced researchers, Four ISO-Certificates for key contributions to MPEG-4 and JPEG 2000, and the best paper award of IEEE Trans. on Consumer Electronics . He became a Fellow of the international society for optical engineering (SPIE) in 2003. Prof. Ebrahimi has initiated more than two dozen National, European and International cooperation projects with leading companies and research institutes around the world. He is also the head of the Swiss delegation to MPEG, JPEG and SC29, and acts as the Chairman of Advisory Group on Management in SC29. He is a co-founder of Genista SA, a high-tech start-up company in the field of multimedia quality metrics. In 2002, he founded Emitall SA, start-up active in the area of media security and surveillance. In 2005, he founded EMITALL Surveillance SA, a start-up active in the field of privacy and protection. He is or has been associate Editor with various IEEE, SPIE, and EURASIP journals, such as IEEE Signal Processing Magazine, IEEE Trans. on Image Processing, IEEE Trans. on Multimedia, EURASIP Image Communication Journal, EURASIP Journal of Applied Signal Processing, SPIE Optical Engineering Magazine. Prof. Ebrahimi is a member of Scientific Advisory Board of various start-up and established companies in the general field of Information Technology. He has served as Scientific Expert and Evaluator for Research Funding Agencies such as those of European Commission, The Greek Ministry of Development, The Austrian National Foundation for Scientific Research, The Portuguese Science Foundation, as well as a number of Venture Capital Companies active in the field of Information Technologies and Communication Systems. His research interests include still, moving, and 3D image processing and coding, visual information security (rights protection, watermarking, authentication, data integrity, steganography), new media, and human computer interfaces (smart vision, brain computer interface).

He is the author or the co-author of more than 200 research publications, and holds 14 patents. Prof. Ebrahimi is a member of IEEE, SPIE, ACM and IS&T.

Powerpoint Slides (85MB)

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