A low complexity prioritized bit-plane coding for SNR scalability in MPEG-21 scalable video coding

Wen-Hsiao Peng, Tihao Chiang*, Hsueh-Ming Hang

*此作品的通信作者

研究成果: Conference article同行評審

摘要

In this paper, we propose a low complexity prioritized bit-plane coding scheme to improve the rate-distortion performance of cyclical block coding in MPEG-21 scalable video coding. Specifically, we use a block priority assignment algorithm to firstly transmit the symbols and the blocks with potentially better rate-distortion performance. Different blocks are allowed to be coded unequally in a coding cycle. To avoid transmitting priority overhead, the encoder and the decoder refer to the same context to assign priority. Furthermore, to reduce the complexity, the priority assignment is done by a look-up-table and the coding of each block is controlled by a simple threshold comparison mechanism. Experimental results show that our prioritized bit-plane coding scheme can offer up to 0.5dB PSNR improvement over the cyclical block coding described in the joint scalable verification model (JSVM).

原文English
文章編號596013
頁(從 - 到)364-371
頁數8
期刊Proceedings of SPIE - The International Society for Optical Engineering
5960
發行號1
DOIs
出版狀態Published - 12 7月 2005
事件Visual Communications and Image Processing 2005 - Beijing, China
持續時間: 12 7月 200515 7月 2005

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