Low Bit Rate Video Coding: Standards and Technologies
Low bit rate video coding has received considerable attention in academia and industry in terms of both coding algorithms and standards activities. For example, the ITU (International Telecommunications Union) has been working to create two low bit rate video telephone standards (the H.830 standard for video conferencing from 64 kbps to 1.544 Mbps and the H.324 standard for visual telephony below 64 kbps). The ISO/SG29/WG11, after its highly visible and successful MPEG 1/2 work, has focused on the next-generation audiovisual multimedia coding standard MPEG 4. The first part of the talk will summarize these ongoing standards activities undertaken by ITU and ISO.
The second part of the talk will focus on a specific scheme that has been developed at the David Sarnoff Research Center. Sarnoff's coder consists of five main components:
Ya-Qin Zhang is the Head of Digital Video Communications at David Sarnoff Research Center in Princeton, NJ. He has authored and co-authored over 100 refereed papers and over a dozen US patents in image/video compression and communications, wireless networking, satellite communications, and medical imaging. He received several awards for his academic and technical contributions to the communications field. Dr. Zhang serves as the Editor on Express Letter for the IEEE Transactions on Circuits and Systems for Video Technology. He has been a Guest Editor for recent special issues of Proceedings of IEEE (February 1995) and Optical Engineering (January 1996) and he is editing an upcoming special issue of IEEE Transactions on Circuits and Systems for Video Technology. He currently represents Sarnoff in the ISO/MPEG and ITU-T/LBC standardization efforts. He received BS and MS degrees in Electrical Engineering from the University of Science and Technology of China and his PhD in Electrical Engineering from George Washington University, Washington DC.
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