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    • 8. 发明申请
    • Coding Method
    • 编码方法
    • US20070025444A1
    • 2007-02-01
    • US11494767
    • 2006-07-28
    • Shigeyuki OkadaHideki YamauchiYuh MatsudaMitsuru SuzukiHaruhiko Murata
    • Shigeyuki OkadaHideki YamauchiYuh MatsudaMitsuru SuzukiHaruhiko Murata
    • H04N11/02H04N11/04
    • H04N19/527H04N19/114H04N19/17H04N19/174H04N19/46H04N19/52H04N19/61H04N19/70
    • A local motion vector detection unit 66 obtains a local motion vector LMV for each macro block in a coding target frame image. A region setting unit 64 sets multiple global regions in the frame image. A global motion vector calculation unit 68 calculates a global motion vector GMV which indicates the global motion within each global region. A local motion vector difference coding unit 72 performs coding of the difference ΔLMV which has been obtained by making the difference between each of the local motion vectors LMV within the global region and the global motion vector GMV obtained for each global region. A global motion vector difference coding unit 74 performs coding of the difference ΔGMV which has been obtained by making the difference between each of the global motion vectors GMV obtained for corresponding global region and the reference global motion vector GMVB serving as a reference.
    • 局部运动矢量检测单元66在编码目标帧图像中获得每个宏块的局部运动矢量LMV。 区域设置单元64在帧图像中设置多个全局区域。 全局运动矢量计算单元68计算指示每个全局区域内的全局运动的全局运动矢量GMV。 局部运动矢量差分编码单元72对通过使全局区域内的每个局部运动矢量LMV与为每个全局区域获得的全局运动矢量GMV之间的差而获得的差值DeltaLMV进行编码。 全局运动矢量差分编码单元74对通过使针对相应的全局区域获得的每个全局运动矢量GMV与基准全局运动矢量GMV B之间的差进行差分DeltaGMV的编码, 作为参考。