Digital HDTV compression at 44 Mbps using parallel motion-compensated transform coders

Hsueh-Ming Hang; Riccardo Leonardi; Barry G. Haskell; Robert L. Schmidt; Hemant Bheda; Joseph H. Othmer

doi:10.1117/12.24191

1 September 1990 Digital HDTV compression at 44 Mbps using parallel motion-compensated transform coders

Hsueh-Ming Hang, Riccardo Leonardi, Barry G. Haskell, Robert L. Schmidt, Hemant Bheda, Joseph H. Othmer

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.

Citation Download Citation

Hsueh-Ming Hang, Riccardo Leonardi, Barry G. Haskell, Robert L. Schmidt, Hemant Bheda, and 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); https://doi.org/10.1117/12.24191

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