Subband Coding of Image Sequences at Low Bit Rates

J. Biemond; P. H. Westerink; F. Muller

doi:10.1117/12.970085

1 November 1989 Subband Coding of Image Sequences at Low Bit Rates

J. Biemond, P. H. Westerink, F. Muller

Proceedings Volume 1199, Visual Communications and Image Processing IV; (1989) https://doi.org/10.1117/12.970085
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

In this paper a low bit rate subband coding scheme for image sequences is described. Typically, the scheme is based on temporal DPCM in combination with an intraframe subband coder. In contrast to previous work, however, the subbands are divided into blocks onto which conditional replenishment is applied, while a bit allocation algorithm divides the bits among the blocks assigned for replenishment. A solution is given for the "dirty window" effect by setting blocks to zero that were assigned to be replenished but received no bits. The effect of motion compensation and the extension to color images are discussed as well. Finally, several image sequence coding results are given for a bit rate of 300 Kb/s.

Citation Download Citation

J. Biemond, P. H. Westerink, and F. Muller "Subband Coding of Image Sequences at Low Bit Rates", Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); https://doi.org/10.1117/12.970085

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