发明名称 |
Simple next search position selection for motion estimation iterative search |
摘要 |
A next position selector for motion estimation iterative search improves the efficiency and quality of the integer-pel motion estimation iterative search by easily and quickly determining the center point of the next search area. By taking a position of the SAD value of the present search area and mapping that position to a center point of the next search area, the process of determining the next search area is very efficient. A local minimum avoidance scheme improves avoids being trapped in a local minimum. By remembering the previous position/direction, the search is able to continue in the correct direction to ensure that the search continues without a back and forth search that is trapped in a local minimum. Applications of this improved motion estimation search include stabilizing an image as well as many other applications where motion vectors are used.
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申请公布号 |
US2010014001(A1) |
申请公布日期 |
2010.01.21 |
申请号 |
US20080218660 |
申请日期 |
2008.07.16 |
申请人 |
SONY CORPORATION, A JAPANESE CORPORATION;SONY ELECTRONICS INC., A CORPORATION OF THE STATEOF DELAWARE |
发明人 |
NAKAZATO MUNEHIRO |
分类号 |
H04N5/92 |
主分类号 |
H04N5/92 |
代理机构 |
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代理人 |
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地址 |
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