发明名称 |
Motion vector estimation at image borders |
摘要 |
The present invention relates to an improved estimation of motion vectors, especially for use in motion compensated interpolation for rate up-converters. As conventional motion estimation algorithms fail to provide accurate estimations for those blocks positioned at the borders of the active image, the present invention determines those blocks which may suffer from defected motion vectors and replaces these vectors by a column or a line motion vector determined based on the previous image. In this manner, a reliable motion estimation is enabled for all blocks of an image, and a degradation of interpolation algorithms at the borders of the active image can efficiently be prevented.
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申请公布号 |
US2005232357(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
US20050081583 |
申请日期 |
2005.03.17 |
申请人 |
HUBRICH RALF;ECKHARDT MICHAEL |
发明人 |
HUBRICH RALF;ECKHARDT MICHAEL |
分类号 |
H04N7/32;G06T7/20;H04N5/14;H04N5/44;H04N7/01;H04N7/12;H04N7/26;(IPC1-7):H04N7/12 |
主分类号 |
H04N7/32 |
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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