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Proceedings Paper

A novel rate-control scheme for H.264 video coding using adaptive quantization parameter
Author(s): Namrye Son; Yoonjeong Shin; Gueesang Lee
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Paper Abstract

Rate control is an important technique in Constant Bit Rate(CBR) coding. AVC standards contains several inter and intra prediction modes. The current AVC software is difficult to adopt the existing rate control techniques, because the Rate Distortion Optimization (RDO) based on prerequisite quantization parameters determines the optimal prediction of each macroblock. This paper proposes an efficient rate control algorithm at macroblock level for AVC standard by considering adaptive quantization parameter. Experimental results show that the proposed rate control algorithm can accurately achieve the target bit rate. Although the PSNR of object quality of video sequences is degraded a little degraded, but the coding efficiency is similar to or better than of the fixed quantization parameter video coding.

Paper Details

Date Published: 25 October 2004
PDF: 8 pages
Proc. SPIE 5600, Multimedia Systems and Applications VII, (25 October 2004); doi: 10.1117/12.568770
Show Author Affiliations
Namrye Son, Chonnam National Univ. (South Korea)
Yoonjeong Shin, Gwangju Univ. (South Korea)
Gueesang Lee, Chonnam National Univ. (South Korea)


Published in SPIE Proceedings Vol. 5600:
Multimedia Systems and Applications VII
Chang Wen Chen; C.-C. Jay Kuo; Anthony Vetro, Editor(s)

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