发明名称 |
Motion vector estimation system |
摘要 |
A reference picture storing section 101 stores reference picture data referred in a motion vector estimation. A current picture storing section 102 stores a current picture data for the motion vector estimation. A motion vector estimating section 103 takes matching between the current picture data and the reference picture data to estimate a motion vector having the minimum difference. A motion vector statistics processing section 104 calculates an average value and a histogram from each picture of an estimated motion vector. A shift vector setting section 105 calculates a shift vector of a motion vector search window based on the average value and histogram in each of coded pictures. A search window designating section 106 designates a motion vector to be searched according to the calculated shift vector so as to cause the motion vector estimating section 103 to estimate the motion vector.
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申请公布号 |
US6078618(A) |
申请公布日期 |
2000.06.20 |
申请号 |
US19980034583 |
申请日期 |
1998.03.04 |
申请人 |
NEC CORPORATION |
发明人 |
YOKOYAMA, YUTAKA;ZHU, SHU-YU;MIZUNO, MASAYUKI |
分类号 |
H04N7/32;H04N5/14;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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