发明申请
- 专利标题： Moving picture coding method and moving picture decoding method for performing inter picture prediction coding and inter picture prediction decoding using previously processed pictures as reference pictures
- 专利标题（中）： 运动图像编码方法和运动图像解码方法，用于使用先前处理的图像作为参考图像进行帧间预测编码和帧间预测解码
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申请号： US11980534申请日： 2007-10-31
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公开(公告)号： US20080069231A1公开(公告)日： 2008-03-20
- 发明人: Satoshi Kondo , Shinya Kadono , Makoto Hagai , Kiyofumi Abe
- 申请人： Satoshi Kondo , Shinya Kadono , Makoto Hagai , Kiyofumi Abe
- 优先权： JP2002-056919 20020304; JP2002-118598 20020419; JP2002-193027 20020702
- 主分类号： H04N7/26
- IPC分类号： H04N7/26
摘要：
A coding control unit (110) and a mode selection unit (109) are included. The coding control unit (110) determines the coding order for a plurality of consecutive B-pictures located between I-pictures and P-pictures so that the B-picture whose temporal distance from two previously coded pictures is farthest in display order is coded by priority, so as to reorder the B-pictures in coding order. When a current block is coded in direct mode, the mode selection unit 109 scales a forward motion vector of a block which is included in a backward reference picture of a current picture and co-located with the current block, so as to generate motion vectors of the current block, if the forward motion vector has been used for coding the co-located block.