文章基本信息

标题：フレーム毎にMCと3次元予測を最適化する動画像の可逆符号化方式
作者：塩寺太一郎 ; 梅津有司 ; 前田弘樹等
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：2006
卷号：60
期号：8
页码：1263-1270
DOI：10.3169/itej.60.1263
出版社：The Institute of Image Information and Television Engineers
摘要：A novel lossless coding scheme for video signals is described. The scheme uses a block-adaptive 3D prediction method that predicts a video signal based on both the current and motion-compensated previous frames. The resulting prediction errors are encoded by using a kind of context-adaptive arithmetic coder. Several coding parameters such as prediction coefficients and motion vectors are iteratively optimized for each frame so that the overall coding rate can be a minimum. Moreover, a quadtree-based variable block-size motion compensation technique is introduced for efficient representation of motion information. Experimental results show that the coding rates of our scheme are 11-17% lower than those of the H. 264-based lossless coding scheme.
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关键词：可逆符号化;動画像符号化;適応3次元予測;算術符号;可変ブロックサイズ動き補償