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Proceedings Paper

A Low-Bit-Rate Video Codec Using Block-List-Transform
Author(s): Hsueh-Ming Hang; Barry G. Haskell; Robert L. Schmidt; James C. Candy
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Paper Abstract

A simple but efficient video codec is built for low-bit-rate videophone applications. The goal of this project is to construct a video codec at a low cost and good performance. In order to reduce hardware complexity, a simple interframe predictive coding structure is selected. The input pictures are partitioned into 2-D blocks, and only the blocks with significant frame differences are coded and transmitted to the decoder. The Block-list-transform (BLT) coding algorithm, a generalized DPCM, is used to encode the frame differences between the previously reconstructed picture and the current picture. Preliminary results using this coding system at 64 kbits/sec show reasonable coding performance on typical videophone sequences.

Paper Details

Date Published: 1 November 1989
PDF: 8 pages
Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); doi: 10.1117/12.970169
Show Author Affiliations
Hsueh-Ming Hang, AT&T Bell Laboratories (United States)
Barry G. Haskell, AT&T Bell Laboratories (United States)
Robert L. Schmidt, AT&T Bell Laboratories (United States)
James C. Candy, AT&T Bell Laboratories (United States)


Published in SPIE Proceedings Vol. 1199:
Visual Communications and Image Processing IV
William A. Pearlman, Editor(s)

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