Method and apparatus for motion estimation with all binary representation
    1.
    发明授权
    Method and apparatus for motion estimation with all binary representation 失效
    具有所有二进制表示的运动估计的方法和装置

    公开(公告)号:US07020201B2

    公开(公告)日:2006-03-28

    申请号:US10301415

    申请日:2002-11-20

    IPC分类号: H04B1/66 H04N7/12

    CPC分类号: H04N5/145 H04N19/53

    摘要: A method of motion estimation for video encoding constructs a binary pyramid structure having three binary layers. A state update module registers and updates repeat occurrence of final motion vectors and a static-state checking module determines if the method is in a static mode or a normal mode based on the repeat occurrence. In a normal mode, the first binary layer is searched within a ±3 pixel refinement window to determine a first level motion vector. In the second binary layer, a search range is computed based on six motion vector candidates. By checking every point within in the search range, a second binary layer search generates a second level motion vector. Finally, a third binary layer search within a ±2 pixel refinement window generates a final motion vector according to the second level motion vector. In a static mode, a fine tuning module performs search within a ±1 pixel refinement window and generates a final motion vector.

    摘要翻译: 视频编码的运动估计方法构成具有三个二进制层的二进制金字塔结构。 状态更新模块注册和更新最终运动矢量的重复发生,并且静态状态检查模块基于重复发生来确定该方法是处于静态模式还是正常模式。 在正常模式中,在±3像素细化窗口内搜索第一二进制层以确定第一级运动矢量。 在第二二进制层中,基于六个运动矢量候选来计算搜索范围。 通过检查搜索范围内的每个点,第二二进制层搜索生成第二级运动矢量。 最后,±2像素细化窗口内的第三二进制层搜索根据第二级运动矢量生成最终运动矢量。 在静态模式中,微调模块在±1像素细化窗口内进行搜索,并生成最终的运动矢量。