公开(公告)号：US09432690B2

公开(公告)日：2016-08-30

申请号：US13754210

申请日：2013-01-30

Applicant: ATI Technologies ULC

Inventor： Yubao Zheng ,  Boris Ivanovic ,  Allen J. Porter ,  Xingping Cao

IPC: H04N11/02 ,  H04N19/523 ,  H04N19/52

CPC classification number: H04N19/523 ,  H04N19/52

Abstract: Methods and apparatus for facilitating motion estimation in video processing are provided. In one embodiment, search block is defined within one frame. A relative location of a corresponding block in another frame with respect to the search block is determined based on comparative searching at a predetermined granularity to produce a motion vector for the search block with a first precision. Correlation values are determined with respect to the search block for the corresponding block and for one block or more blocks defined at relative locations of less than the predetermined granularity with respect to the corresponding block in different directions. A refined motion vector for the search block with a second higher precision is determined based on the relative location of the block having a selected correlation value that is selected from among the determined correlation values.

Abstract translation: 提供了用于促进视频处理中的运动估计的方法和装置。 在一个实施例中，搜索块在一个帧内被定义。 基于以预定粒度的比较搜索来确定相对于搜索块的另一帧中的对应块的相对位置，以产生具有第一精度的搜索块的运动矢量。 相对于相对于块的搜索块以及在相对于相对于不同方向的块的预定粒度的相对位置处定义的一个或多个块来确定相关值。 基于从所确定的相关值中选择的具有所选相关值的块的相对位置来确定具有第二更高精度的搜索块的精细运动矢量。

公开(公告)号：US20140211854A1

公开(公告)日：2014-07-31

申请号：US13754210

申请日：2013-01-30

Applicant: ATI TECHNOLOGIES ULC

Inventor： Yubao Zheng ,  Boris Ivanovic ,  Allen J. Porter ,  Xingping Cao

IPC: H04N7/26

CPC classification number: H04N19/523 ,  H04N19/52

Abstract: Methods and apparatus for facilitating motion estimation in video processing are provided. In one embodiment, search block is defined within one frame. A relative location of a corresponding block in another frame with respect to the search block is determined based on comparative searching at a predetermined granularity to produce a motion vector for the search block with a first precision. Correlation values are determined with respect to the search block for the corresponding block and for one block or more blocks defined at relative locations of less than the predetermined granularity with respect to the corresponding block in different directions. A refined motion vector for the search block with a second higher precision is determined based on the relative location of the block having a selected correlation value that is selected from among the determined correlation values.

Abstract translation: 提供了用于促进视频处理中的运动估计的方法和装置。 在一个实施例中，搜索块在一个帧内被定义。 基于以预定粒度的比较搜索来确定相对于搜索块的另一帧中的对应块的相对位置，以产生具有第一精度的搜索块的运动矢量。 相对于相对于块的搜索块以及在相对于相对于不同方向的块的预定粒度的相对位置处定义的一个或多个块来确定相关值。 基于从所确定的相关值中选择的具有所选相关值的块的相对位置来确定具有第二更高精度的搜索块的精细运动矢量。