Hierarchical motion estimation for images with varying horizontal and/or vertical dimensions
    1.
    发明授权
    Hierarchical motion estimation for images with varying horizontal and/or vertical dimensions 有权
    具有不同水平和/或垂直尺寸的图像的分层运动估计

    公开(公告)号:US08243804B2

    公开(公告)日:2012-08-14

    申请号:US11292198

    申请日:2005-12-01

    IPC分类号: H04N7/12 H04N11/02

    CPC分类号: H04N19/53 H04N19/51 H04N19/61

    摘要: A method for implementing motion estimation comprising the steps of (A) performing a motion estimation search on one or more blocks of sub-sampled images to generate a first plurality of motion vector scores, (B) applying a first adjustable bias to any one or more of said first plurality of motion vector scores with a lowest sum of absolute differences score, (C) selecting a motion vector with a lowest adjusted score in response to applying the first adjustable bias, (D) performing a motion estimation search on one or more blocks of non-sub-sampled images to generate a second plurality of motion vector scores with the selected motion vector with the lowest adjusted score, (E) applying a second adjustable bias to any one or more of the second plurality of motion vector scores with the lowest sum of absolute differences score and (F) selecting a final motion vector for each target block position.

    摘要翻译: 一种用于实现运动估计的方法,包括以下步骤:(A)对一个或多个子采样图像块执行运动估计搜索以产生第一多个运动矢量分数,(B)将第一可调偏置应用于任何一个或 更多的所述第一多个运动矢量得分具有绝对差分得分的最小和,(C)响应于应用第一可调偏置选择具有最低调整分数的运动矢量,(D)在一个或多个运动矢量得分上执行运动估计搜索, 更多的非子采样图像的块以产生具有所选择的具有最低调整分数的运动矢量的第二多个运动矢量分数,(E)将第二可调偏置应用于第二多个运动矢量分数中的任何一个或多个运动矢量分数 具有绝对差分得分的最小和,并且(F)为每个目标块位置选择最终运动矢量。

    Hierarchical motion estimation for images with varying horizontal and/or vertical dimensions
    2.
    发明申请
    Hierarchical motion estimation for images with varying horizontal and/or vertical dimensions 有权
    具有不同水平和/或垂直尺寸的图像的分层运动估计

    公开(公告)号:US20070127573A1

    公开(公告)日:2007-06-07

    申请号:US11292198

    申请日:2005-12-01

    IPC分类号: H04N11/02

    CPC分类号: H04N19/53 H04N19/51 H04N19/61

    摘要: A method for implementing motion estimation comprising the steps of (A) performing a motion estimation search on one or more blocks of sub-sampled images to generate a first plurality of motion vector scores, (B) applying a first adjustable bias to any one or more of said first plurality of motion vector scores with a lowest sum of absolute differences score, (C) selecting a motion vector with a lowest adjusted score in response to applying the first adjustable bias, (D) performing a motion estimation search on one or more blocks of non-sub-sampled images to generate a second plurality of motion vector scores with the selected motion vector with the lowest adjusted score, (E) applying a second adjustable bias to any one or more of the second plurality of motion vector scores with the lowest sum of absolute differences score and (F) selecting a final motion vector for each target block position.

    摘要翻译: 一种用于实现运动估计的方法,包括以下步骤:(A)对一个或多个子采样图像块执行运动估计搜索以产生第一多个运动矢量分数,(B)将第一可调偏置应用于任何一个或 更多的所述第一多个运动矢量得分具有绝对差分得分的最小和,(C)响应于应用第一可调偏置选择具有最低调整分数的运动矢量,(D)在一个或多个运动矢量得分上执行运动估计搜索, 更多的非子采样图像的块以产生具有所选择的具有最低调整分数的运动矢量的第二多个运动矢量分数,(E)将第二可调偏置应用于第二多个运动矢量分数中的任何一个或多个运动矢量分数 具有绝对差分得分的最小和,并且(F)为每个目标块位置选择最终运动矢量。

    Motion estimation engine with parallel interpolation and search hardware
    3.
    发明授权
    Motion estimation engine with parallel interpolation and search hardware 有权
    具有并行插值和搜索硬件的运动估计引擎

    公开(公告)号:US07408988B2

    公开(公告)日:2008-08-05

    申请号:US10325188

    申请日:2002-12-20

    IPC分类号: H04N7/18

    摘要: A method for motion estimating. The method generally includes the steps of (A) generating a first interpolated block having a sub-pixel resolution in response to a first interpolation process operating on a reference block of a reference frame of a video signal having an integer pixel resolution, (B) generating a motion vector in response to the first interpolated block and a current block of a current frame of the video signal having the integer pixel resolution and (C) generating a second interpolated block having the sub-pixel resolution in response to a second interpolation process operating on the reference block.

    摘要翻译: 一种运动估计的方法。 该方法通常包括以下步骤:(A)响应于对具有整数像素分辨率的视频信号的参考帧的参考块进行操作的第一内插处理,生成具有子像素分辨率的第一内插块,(B) 产生响应于第一内插块的运动矢量和具有整数像素分辨率的视频信号的当前帧的当前块,以及(C)响应于第二内插处理产生具有子像素分辨率的第二内插块 在参考块上操作。

    Motion estimation and compensation for video compression
    4.
    发明授权
    Motion estimation and compensation for video compression 有权
    视频压缩的运动估计和补偿

    公开(公告)号:US06845130B1

    公开(公告)日:2005-01-18

    申请号:US09689229

    申请日:2000-10-12

    IPC分类号: H04N7/26 H04N7/18

    摘要: An encoding method for reducing motion video data sizes using a multitude of variable-sized data blocks that are derived from spatial translation vectors and the motion field of an image. Using variable-block sizes to characterize the groups of picture elements (pixels) in an image frame allows for the inter-mixing of coarse (for static areas) and fine (for areas of complex motion) resolution data descriptions in the same descriptive data block.A comparison of motion event areas is made between successive video frames, and a motion displacement vector is calculated for each pixel location in the frame. A data tree is constructed from these pixel motion vectors and is pruned to eliminate static areas. The remaining leaves of the pruned tree are encoded differentially and applied to a lossless arithmetic encoder to provide a significantly reduced data block that still retains the highest resolution of the image.

    摘要翻译: 一种用于使用从空间转换向量和图像的运动场导出的多个可变大小的数据块来减少运动视频数据大小的编码方法。 使用可变块大小来表征图像帧中的图像元素(像素)组允许在相同的描述性数据块中的粗略(对于静态区域)和精细(对于复杂运动区域)分辨率数据描述的混合 在连续的视频帧之间进行运动事件区域的比较,并且针对帧中的每个像素位置计算运动位移矢量。 从这些像素运动矢量构建数据树并修剪以消除静态区域。 修剪树的剩余叶子被差分地编码并应用于无损算术编码器,以提供仍然保持图像的最高分辨率的显着减小的数据块。