发明名称 |
Fast motion estimation apparatus and method using block matching algorithm |
摘要 |
A fast motion estimation apparatus and method in which motion estimation is carried out on a current block of a current frame of video image data with reference to a corresponding matching block of a previous frame are provided. The fast motion estimation apparatus includes: a determination unit which determines whether an SAD between pixel values of a current block of a current frame and a corresponding matching block of a previous frame is greater than a predefined threshold; an initial search unit which performs an initial search when the SAD is greater than the predetermined threshold to find which search point of a current search pattern is the minimal SAD point and to determine whether the minimal SAD point matches the center of the current search pattern; and a repetitive search unit which performs an iteration search when the minimal SAD point differs from the center of the current search pattern to reset the minimal SAD point to be a center of the current search pattern and to set a number of search points and the size of a search pattern based on from current search pattern to a center of the search window of the previous frame.
|
申请公布号 |
US2006280248(A1) |
申请公布日期 |
2006.12.14 |
申请号 |
US20050243095 |
申请日期 |
2005.10.04 |
申请人 |
KIM BYUNG G;MAH PYEONG S;KIM SEON T;SONG SUK K |
发明人 |
KIM BYUNG G.;MAH PYEONG S.;KIM SEON T.;SONG SUK K. |
分类号 |
H04N11/02;H04B1/66;H04N7/12;H04N11/04 |
主分类号 |
H04N11/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|