A study on rate distortion optimization scheme for JVT coder

Koichi Takagi; Yasuhiro Takishima; Yasuyuki Nakajima

doi:10.1117/12.503316

23 June 2003 A study on rate distortion optimization scheme for JVT coder

Koichi Takagi, Yasuhiro Takishima, Yasuyuki Nakajima

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503316
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

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.

Citation Download Citation

Koichi Takagi, Yasuhiro Takishima, and Yasuyuki Nakajima "A study on rate distortion optimization scheme for JVT coder", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503316

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