Variable-bit-rate HDTV coding algorithm for ATM environments for B-ISDN

Taizo Kinoshita; Tomoko Nakahashi; Masaaki Takizawa

doi:10.1117/12.50256

1 November 1991 Variable-bit-rate HDTV coding algorithm for ATM environments for B-ISDN

Taizo Kinoshita, Tomoko Nakahashi, Masaaki Takizawa

Proceedings Volume 1605, Visual Communications and Image Processing '91: Visual Communication; (1991) https://doi.org/10.1117/12.50256
Event: Visual Communications, '91, 1991, Boston, MA, United States

Abstract

A variable bit-rate HDTV coding algorithm based on motion-adaptive DCT is investigated for ATM environments in B-ISDN. Adaptive 2-layered coding, an ATM cell matrix for error correction, and a block interleave for error concealment are proposed to keep picture quality high by compensating for ATM cell loss. A new VLC and a congestion control scheme that restricts peak-rate and average-rate are also proposed for traffic control. The proposed algorithm is shown to reduce the coding bit-rate for HDTV conference applications in ATM environments to 10-30 Mb/s.

Citation Download Citation

Taizo Kinoshita, Tomoko Nakahashi, and Masaaki Takizawa "Variable-bit-rate HDTV coding algorithm for ATM environments for B-ISDN", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); https://doi.org/10.1117/12.50256

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