A Low-Bit-Rate Video Codec Using Block-List-Transform

Hsueh-Ming Hang; Barry G. Haskell; Robert L. Schmidt; James C. Candy

doi:10.1117/12.970169

1 November 1989 A Low-Bit-Rate Video Codec Using Block-List-Transform

Hsueh-Ming Hang, Barry G. Haskell, Robert L. Schmidt, James C. Candy

Proceedings Volume 1199, Visual Communications and Image Processing IV; (1989) https://doi.org/10.1117/12.970169
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

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.

Citation Download Citation

Hsueh-Ming Hang, Barry G. Haskell, Robert L. Schmidt, and James C. Candy "A Low-Bit-Rate Video Codec Using Block-List-Transform", Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); https://doi.org/10.1117/12.970169

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