发明名称 |
Motion vector detection apparatus for performing checker-pattern subsampling with respect to pixel arrays |
摘要 |
A motion vector detection apparatus for detecting a motion vector by performing block matching between a target block including a plurality of pixels in a current image, and a reference block including a plurality of pixels in a predetermined reference area in a past image that is previous to the current image, the apparatus including a first address generator for generating addresses of data in the target block and addresses of data in the reference area; a first storage unit for holding data of the reference area designated by the first address generator; a second storage unit for holding data of the target block designated by the first address generator; a second address generator for generating addresses of data to be outputted from the first storage unit and the second storage unit; and a motion vector detector for detecting a motion vector by using the data outputted from the first storage unit and the data outputted from the second storage unit; wherein the motion vector detector subtracts the absolute values of differences in pixel data between the reference block and the target block, one by one, from a threshold value, and when the result of subtraction becomes negative, the motion vector detector stops calculation of the sum of absolute differences in the corresponding position.
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申请公布号 |
US7099393(B2) |
申请公布日期 |
2006.08.29 |
申请号 |
US20040023529 |
申请日期 |
2004.12.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ARITA MIKI;KUROHMARU SHUNICHI |
分类号 |
H04N7/12;H03M7/36;H04N5/14;H04N7/26 |
主分类号 |
H04N7/12 |
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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