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Proceedings Paper

Optimal real-time control of low-bit-rate coders
Author(s): Jose Ignacio Ronda; Alvaro Bescos; Martina Eckert; Fernando Jaureguizar
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Paper Abstract

This paper addresses the design of a model-based optimal control system for the real-time operation of low bit-rate coders. This control problem differs from its classical version, since the control system must decide for each video frame whether it can be coded or it must be skipped, apart from deciding the coding parameters for each coded video frame. The control policy, which specifies this decision process, is obtained as the solution of a stochastic dynamic programming problem. This problem corresponds to a formal specification of the rate control issue, which results from the previous obtainment of a stochastic model of the video coder behavior and a cost function whose minimization becomes the target of the regulation task. The approach is tested on a standard implementation of an H.263 coder.

Paper Details

Date Published: 30 May 2000
PDF: 10 pages
Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000);
Show Author Affiliations
Jose Ignacio Ronda, Ciudad Univ. Madrid (Spain)
Alvaro Bescos, Ciudad Univ. Madrid (Spain)
Martina Eckert, Ciudad Univ. Madrid (Spain)
Fernando Jaureguizar, Ciudad Univ. Madrid (Spain)

Published in SPIE Proceedings Vol. 4067:
Visual Communications and Image Processing 2000
King N. Ngan; Thomas Sikora; Ming-Ting Sun, Editor(s)

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