文章基本信息

标题：テクスチャの再現性を考慮したH.264符号化モード制御方式
本地全文：下载
作者：吉野知伸 ; 内藤整 ; 酒澤茂之等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2008
卷号：62
期号：8
页码：1301-1310
DOI：10.3169/itej.62.1301
出版社：The Institute of Image Information and Television Engineers
摘要：Afurther improvement of subjective picture quality for H.264/AVC High Profile coding is required to maintain stable broadcasting quality even under low bit-rate transmission. The macroblock coding mode decision is one of the key factors in improving coding efficiency. In conventional methods, this mode is usually decided based on R-D optimization criteria, and the selected mode contributes to the high coding efficiency. However, it is not necessarily appropriate to avoid the subjective picture quality degradation so an improvement of the coding mode decision scheme is strongly required. There-fore, we propose an advanced coding mode decision scheme. The proposed scheme selects the coding mode based on new evaluating measure in order to pursue the texture reality. Experimental results show that our proposed scheme improves the subjective picture quality improvement, and the DSCQS(Double Stimulus Continuous Quality Scale) gain reaches a maximum 8.6 points.
关键词：H.264/MPEG-4 AVC;符号化モード選択;HDTV;低ビットレート符号化;主観画質