Efficient bit allocation under multiple constraints on cumulated rates for delayed video coding

David W. Lin, Jiann Jone Chen

研究成果: Conference article同行評審

2 引文 斯高帕斯(Scopus)

摘要

We consider optimal encoding of a sequence of video units under a given set of rate constraints which may arise from finite codec delay, finite channel capacity, and finite codec buffer sizes. A Lagrange-multiplier approach is employed and some useful properties of the optimal Lagrange- multiplier solution are obtained under the assumption that the allowed video data rates are continuous. Based on these properties, we derive two solution algorithms for discrete allocation. The algorithms are more efficient than that have been presented to date. The solution is optimal when the distortion-rate relations of the video units are convex and the selectable rates of the video units are uniformly spaced with the same granularity. When these conditions do not hold, the Lagrange-multiplier solution may be suboptimal, but can be improved or optimized by a search about the solution.

原文English
頁(從 - 到)1370-1381
頁數12
期刊Proceedings of SPIE - The International Society for Optical Engineering
3024
DOIs
出版狀態Published - 1 十二月 1997
事件Visual Communications and Image Processing '97 - San Jose, CA, United States
持續時間: 12 二月 199712 二月 1997

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