Overlapped motion compensation for object coding
    3.
    发明授权
    Overlapped motion compensation for object coding 失效
    对象编码的重叠运动补偿

    公开(公告)号:US5982438A

    公开(公告)日:1999-11-09

    申请号:US960740

    申请日:1997-10-29

    IPC分类号: H04N7/26 H04N7/50 H04N7/32

    摘要: To represent the motion of a pixel between successive image frames, this method utilizes the motion information for the transformation block containing the pixel, as well as the motion information for adjacent transformation blocks whenever the adjacent transformation blocks are associated with the same object with which the selected pixel is associated. As a result, transformation errors arising from transformation block discontinuities are decreased and the accuracy and integrity of motion representations of pixels within an object are maintained. Preferably, the motion representations for the transformation blocks are multi-dimensional or affine transformations that are capable of representing complex motions that include any or all of translation, rotation, magnification, and shear.

    摘要翻译: 为了表示连续图像帧之间的像素的运动,该方法利用包含像素的变换块的运动信息以及相邻变换块的运动信息,只要相邻的变换块与相同的对象相关联, 所选像素相关联。 结果,由变换块不连续性引起的变换误差降低,并且保持对象内的像素的运动表示的精度和完整性。 优选地,用于变换块的运动表示是能够表示包括平移,旋转,放大和剪切中的任何或全部的复杂运动的多维或仿射变换。