发明公开
EP3029938A1 METHOD FOR CODING MOTION IN A VIDEO SEQUENCE
审中-公开
VERFAHREN ZUR CODIERUNG VON BEWEGUNG在EINER VIDEOSEQUENZ
- 专利标题: METHOD FOR CODING MOTION IN A VIDEO SEQUENCE
- 专利标题(中): VERFAHREN ZUR CODIERUNG VON BEWEGUNG在EINER VIDEOSEQUENZ
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申请号: EP16150129.1申请日: 2003-03-14
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公开(公告)号: EP3029938A1公开(公告)日: 2016-06-08
- 发明人: LAINEMA, Jani
- 申请人: Nokia Technologies Oy
- 申请人地址: Karaportti 3 02610 Espoo FI
- 专利权人: Nokia Technologies Oy
- 当前专利权人: Nokia Technologies Oy
- 当前专利权人地址: Karaportti 3 02610 Espoo FI
- 代理机构: Cohausz & Florack
- 优先权: US365072P 20020315
- 主分类号: H04N19/132
- IPC分类号: H04N19/132 ; H04N19/139 ; H04N19/176 ; H04N19/463 ; H04N19/527 ; H04N19/61
摘要:
A method of motion-compensated video encoding that enables a video sequence with a global motion component to be encoded in an efficient manner. A video encoder (600) is arranged to assign macroblocks to be coded to specific coding modes including a skip mode, which is used to indicate one of two possible types of macroblock motion: (a) zero motion, or (b) global or regional motion. As each macroblock is encoded, a previously encoded region surrounding the macroblock is examined and the characteristics of motion in that region determined. With the skip mode, the macroblock to be coded and a motion vector describing the global motion or regional motion is associated with the macroblock if the motion in the region is characteristic of global motion or regional motion. If the region exhibits an insignificant level of motion, a zero valued motion vector is associated with the macroblock.
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