1 September 1990 Digital HDTV compression at 44 Mbps using parallel motion-compensated transform coders
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Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24191
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland
Abstract
High Definition Television (HDTV) promises to offer wide-screen, much better quality pictures as compared to the today’s television. However, without compression a digital HDTV channel may cost up to one Gbits/sec transmission bandwidth. We suggest a parallel processing structure using the proposed international standard for visual telephony (CCITT Px64 kbs standard) as processing elements, to compress the digital HDTV pictures. The basic idea is to partition an HDTV picture into smaller sub-pictures and then compress each sub-picture using a CCITT Px64kbs coder, which is cost-effective, by today’s technology, only on small size pictures. Since each sub-picture is processed by an independent coder, without coordination these coded sub-pictures may have unequal picture quality. To maintain a uniform quality HDTV picture, the following two issues are studied: (l) sub-channel control strategy (bits allocated to each sub-picture), and (2) quantization and buffer control strategy for individual sub-picture coder. Algorithms to resolve the above problems and their computer simulations are presented.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hsueh-Ming Hang, Riccardo Leonardi, Barry G. Haskell, Robert L. Schmidt, Hemant Bheda, Joseph H. Othmer, "Digital HDTV compression at 44 Mbps using parallel motion-compensated transform coders", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); doi: 10.1117/12.24191; https://doi.org/10.1117/12.24191
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