发明名称 |
Motion vector detection device and motion vector detection method |
摘要 |
An arithmetic operation means sequentially calculates estimation errors for respective candidate blocks based on pixel data of an odd-numbered or even-numbered field of a reference image frame and pixel data of an odd-numbered or even-numbered field of a current image block. A field comparator obtains the minimum estimation error from among the calculated estimation errors to detect a field motion vector. An AE storage stores a plurality of estimation errors calculated by the arithmetic operation means for one of predetermined combinations. An adder adds together the estimation errors calculated by the arithmetic operation means and a corresponding one of the plurality of estimation errors stored in the AE storage to calculate estimation errors on a frame-by-frame basis. A frame comparator obtains the minimum estimation error from among the estimation errors calculated on a frame-by-frame basis to detect a frame motion vector.
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申请公布号 |
US2004247032(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20040493028 |
申请日期 |
2004.04.19 |
申请人 |
AIHARA YUICHIRO;OTANI AKIHIKO;WATABE AKIHIRO |
发明人 |
AIHARA YUICHIRO;OTANI AKIHIKO;WATABE AKIHIRO |
分类号 |
H04N7/26;(IPC1-7):H04N7/12 |
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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