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Proceedings Paper

Adaptive Schemes For Motion-Compensated Coding
Author(s): A. Puri; H. M. Hang
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Paper Abstract

Several variations on the popular motion-compensated interframe block-coding schemes are proposed. The idea behind these schemes is to handle each image block with a different parameter and/or algorithm based on the contents of that individual block. They are extensions of the basic nonadaptive algorithm and are designed to reduce the coding bit rate and to improve the reconstructed picture quality. Our goal in this paper is to explore the potential merits offered by these adaptive techniques. Three schemes are described in this paper: (1) adaptive block-size motion compensation and coding, (2) multiple-transform coding, and (3) DOT and cluster (pel-domain) hybrid coding. Similar to many other adaptive algorithms, each of the above schemes has a number of parameters that need to be chosen carefully for optimum performance. We make no such exhaustive attempt, rather the results presented here are based on a limited set of experiments using a few preselected parameters. However, we find that the experiments conducted still provide us with some insights into issues concerning the adaptive image-sequence coding schemes, such as, the performance versus complexity issue.

Paper Details

Date Published: 25 October 1988
PDF: 11 pages
Proc. SPIE 1001, Visual Communications and Image Processing '88: Third in a Series, (25 October 1988); doi: 10.1117/12.969044
Show Author Affiliations
A. Puri, AT&T Bell Laboratories (United States)
H. M. Hang, AT&T Bell Laboratories (United States)

Published in SPIE Proceedings Vol. 1001:
Visual Communications and Image Processing '88: Third in a Series
T. Russell Hsing, Editor(s)

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