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Proceedings Paper

A study on rate distortion optimization scheme for JVT coder
Author(s): Koichi Takagi; Yasuhiro Takishima; Yasuyuki Nakajima
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Paper Abstract

This paper focuses on the encoder of ITU-T H.264 | ISO/IEC MPEG-4 Part-10 AVC (hereafter “JVT”), especially the Lagrange parameter for the rate distortion optimization (RDO) scheme. Since the Lagrange optimization method is very effective from the viewpoint of coding efficiency optimization, it is specified as an essential experimental condition for performance evaluation in JVT standardization activity. After discussing the background of this mechanism, we verify this method and the currently used parameter theoretically. Computer simulation results show that the Lagrange multiplier might not necessarily be original value; smaller values provide better performance in QCIF, for example.

Paper Details

Date Published: 23 June 2003
PDF: 10 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503316
Show Author Affiliations
Koichi Takagi, KDDI R&D Labs. Inc. (Japan)
Yasuhiro Takishima, KDDI R&D Labs. Inc. (Japan)
Yasuyuki Nakajima, KDDI R&D Labs. Inc. (Japan)


Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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