Method for motion compensation
    1.
    发明授权
    Method for motion compensation 有权
    运动补偿方法

    公开(公告)号:US08090031B2

    公开(公告)日:2012-01-03

    申请号:US11867836

    申请日:2007-10-05

    IPC分类号: H04N7/12

    摘要: A method for use in video compression is disclosed. In particular, the claimed invention relates to a method of more efficient fractional-pixel interpolation in two steps by a fixed filter (240) and an adaptive filter (250) for fractional-pixel motion compensation.

    摘要翻译: 公开了一种用于视频压缩的方法。 特别地,要求保护的发明涉及一种用于分数像素运动补偿的固定滤波器(240)和自适应滤波器(250)在两个步骤中更有效的分数像素插值的方法。

    METHOD FOR MOTION COMPENSATION
    2.
    发明申请
    METHOD FOR MOTION COMPENSATION 有权
    运动补偿方法

    公开(公告)号:US20090092328A1

    公开(公告)日:2009-04-09

    申请号:US11867836

    申请日:2007-10-05

    IPC分类号: G06K9/36 G06K9/32

    摘要: A method for use in video compression is disclosed. In particular, the claimed invention relates to a method of more efficient fractional-pixel interpolation in two steps by a fixed filter (240) and an adaptive filter (250) for fractional-pixel motion compensation.

    摘要翻译: 公开了一种用于视频压缩的方法。 特别地,要求保护的发明涉及一种用于分数像素运动补偿的固定滤波器(240)和自适应滤波器(250)在两个步骤中更有效的分数像素插值的方法。

    Enhanced block-based motion estimation algorithms for video compression
    3.
    发明授权
    Enhanced block-based motion estimation algorithms for video compression 失效
    用于视频压缩的增强的基于块的运动估计算法

    公开(公告)号:US08761258B2

    公开(公告)日:2014-06-24

    申请号:US11455009

    申请日:2006-06-16

    IPC分类号: H04N7/12

    摘要: Method, systems and software are proposed for obtaining for blocks of a first image similar blocks of a second image (the “reference image”). The blocks of the first image are processed sequentially, for each block trying out a number of candidate locations in the second image and evaluating a cost function for each. Each candidate location in the second image is displaced by a respective motion vector from the block of the first image. In a first aspect of the invention the cost function is a function of a predicted motion vector for future blocks of the first image (i.e. blocks of the first image which have not yet been processed). In a second aspect of the invention the motion vectors are given by location values which are not all whole pixel spacings, halves of the pixel spacing, or quarters of the pixel spacing.

    摘要翻译: 提出了用于获得第二图像的相似块(“参考图像”)的第一图像的块的方法,系统和软件。 顺序处理第一图像的块,对于每个块,尝试在第二图像中的多个候选位置并评估每个的成本函数。 第二图像中的每个候选位置由相应的运动矢量从第一图像的块移位。 在本发明的第一方面,成本函数是第一图像的未来块(即尚未被处理的第一图像的块)的预测运动矢量的函数。 在本发明的第二方面,运动矢量由位置值给出,其不是全部是像素间隔,像素间隔的一半或像素间隔的四分之一。