文章基本信息

标题：H.264/MPEG-4 AVCの符号情報に基づく適応的色空間変換方式
本地全文：下载
作者：加藤晴久 ; 米山暁夫 ; 内藤整等
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：2012
卷号：66
期号：9
页码：J310-J317
DOI：10.3169/itej.66.J310
出版社：The Institute of Image Information and Television Engineers
摘要：We propose a coding method that reduces inter-channel correlation of 4:4:4 chroma format in high-resolution images more than HDTV. The proposed method adaptively conducts color conversion on the singular value decomposition using local decoded pixels in H.264/MPEG-4 AVC. The conversion coefficients are calculated from pixels that are similar to the target block on the coding parameters of H.264, including intra prediction mode and motion vector. Experimental results show that the proposed method has 0.7 dB better coding efficiency than the conventional method and is about two times faster.
关键词：色空間変換;H.264;Intra予測;チャネル間相関