发明名称 |
Unit for and method of motion estimation and image processing apparatus provided with such motion estimation unit |
摘要 |
The motion estimation unit (100) comprises a block-matcher (102) for calculating a start motion vector (110) by minimizing a predetermined cost function as a matching criterion for the block (116) of pixels with a further block of pixels (122) of a further image (120). The motion estimation unit (100) further comprises an optical flow analyzer (104) for calculating an update motion vector (111) based on the start motion vector (110) and which is designed to find the most appropriate set of optical flow equations corresponding to respective pixels of the block (116) of pixels. This is achieved by analyzing gradient vectors of optical flow equations for pixels of the block (116) of pixels. Finally the selector 106 of the motion estimation unit (100) selects the motion vector (126) by comparing the start motion vector (110) with the update motion vector (111).
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申请公布号 |
US2003086499(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020277587 |
申请日期 |
2002.10.22 |
申请人 |
LUNTER GERARD ANTON;PELAGOTTI ANNA |
发明人 |
LUNTER GERARD ANTON;PELAGOTTI ANNA |
分类号 |
G06T7/20;(IPC1-7):H04N7/12 |
主分类号 |
G06T7/20 |
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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