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Proceedings Paper

Optimal delayed-coding of video sequences subject to a buffer-size constraint
Author(s): David W. Lin; Ming-Hong Wang; Jiann-Jone Chen
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Paper Abstract

A video encoder has the task of producing lowest-distortion coded video subject to some constraints on delay, rate, and buffer conditions. We present a general optimization approach to this problem in a framework of delayed coding and we motivate a certain formulation of the optimization objective. Two forms of distortion measures are considered, namely, the maximum distortion and the total distortion, each defined over a segment of the video to be coded. These distortion measures are chosen for their mathematical tractability and practical importance. A solution (computational algorithm) for each case is described. Subject to some conditions, the solutions may be suboptimal. Simulation results show an improved performance with this approach compared to a simple typical approach which varies the quantization scale linearly with the encoder buffer level.

Paper Details

Date Published: 22 October 1993
PDF: 12 pages
Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); doi: 10.1117/12.157940
Show Author Affiliations
David W. Lin, Bell Communications Research (United States)
Ming-Hong Wang, National Chiao Tung Univ. (Taiwan)
Jiann-Jone Chen, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 2094:
Visual Communications and Image Processing '93
Barry G. Haskell; Hsueh-Ming Hang, Editor(s)

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