- 著者
-
塩寺 太一郎
梅津 有司
前田 弘樹
松田 一朗
森岡 一幸
伊東 晋
- 出版者
- 一般社団法人映像情報メディア学会
- 雑誌
- 映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)
- 巻号頁・発行日
- vol.60, no.7, pp.1051-1058, 2006-07-01
- 被引用文献数
-
13
1
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.<p>お詫びと訂正 : 本論文 (pp. 1051~1058) の1052頁と1053頁を入れ違えておりました. ここにお詫びして訂正版を8月号に掲載いたします.