- 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
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申请号： US11980556申请日： 2007-10-31
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公开(公告)号： US20080063060A1公开(公告)日： 2008-03-13
- 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： H04N7/12
- IPC分类号： H04N7/12
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.