Motion estimating method and device



The invention discloses a method and a device for motion estimation. The method includes the following steps: a half pixel interpolation is carried out for a reference frame; an asymmetric filter with 3 taps is used for interpolation of a full pixel of the reference frame in horizontal direction and vertical direction and of 1/4 of the half pixel also in horizontal direction and vertical direction. A symmetric filter is used for interpolation of 1/4 of the full pixel of the reference frame in diagonal direction; at last, an estimation block which is matched with the current block the mostly is searched inside the reference frame which is interpolated. The invention increases the precision of interpolation of 1/4 pixel, thereby increasing the precision of motion estimation.




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-101043621-ASeptember 26, 2007华为技术有限公司一种自适应插值处理方法及编解码模块
    CN-1543221-ANovember 03, 2004浙江大学Method and apparatus for 1/4 pixel precision interpolation
    CN-1863319-ANovember 15, 2006华为技术有限公司Fractional pixel interpolation method and encoding and decoding apparatus
    CN-1964493-AMay 16, 2007清华大学A motion compensation interpolation method for H.264 decoder

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    Publication numberPublication dateAssigneeTitle