標題: Joint rate-distortion coding of multiple videos
作者: Gu, WC
Lin, DW
電子工程學系及電子研究所
電信研究中心
Department of Electronics Engineering and Institute of Electronics
Center for Telecommunications Research
公開日期: 1-Feb-1999
摘要: Some communications applications involve the simultaneous transmission of multiple videos from one source location. We consider the optimal bandwidth allocation and coding of such co-located multiple videos for transmission over one constant bit rate channel. It turns out that a major issue consists in proper setting of target buffer levels, which arises due to the possibly large variation in the rate-distortion relations of the aggregate video material in a short time period. In fact, this is also an issue in MPEGx coding whose I, P, and B frames possess different rate-distortion characteristics. We outline an approach to optimal solutions under several common types of distortion measures. And we present two simplified techniques and some preliminary simulation results. The simulation results show that such joint bit allocation can significantly enhance the average coding performance over multiple videos.
URI: http://dx.doi.org/10.1109/30.754431
http://hdl.handle.net/11536/31555
ISSN: 0098-3063
DOI: 10.1109/30.754431
期刊: IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume: 45
Issue: 1
起始頁: 159
結束頁: 164
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