发明名称 |
Iterative global motion estimation |
摘要 |
<p>Global motion estimation techniques play an important role in advanced video coding. Global motion estimation is useful for increasing the coding efficiency. However, it is of high complexity due to using a multiple parameters model and an iterative processing. The invention is based on a four-parameter linear global motion estimation model. From particular block motion vectors of a frame a set of global motion parameters is calculated in an iterative process. In each iteration loop, the motion vector outliers in symmetrical motion vector blocks are processed according to a given set of rules in order to keep the symmetrical structure during the iterative process.</p> |
申请公布号 |
EP1755345(A2) |
申请公布日期 |
2007.02.21 |
申请号 |
EP20060116566 |
申请日期 |
2006.07.04 |
申请人 |
THOMSON LICENSING |
发明人 |
CHEN, ZHI BO;NIE, ZHEN GANG;ZHU, LI HUA |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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