发明名称 |
Motion vector encoding device and decoding device |
摘要 |
A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.
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申请公布号 |
US2003128762(A1) |
申请公布日期 |
2003.07.10 |
申请号 |
US20030375127 |
申请日期 |
2003.02.28 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAKAGAWA AKIRA;ANAN TAIZO;MORIMATSU EISHI;ITOH TAKASHI |
分类号 |
H04N7/32;H04N7/26;H04N7/50;(IPC1-7):H04N7/12;H04N11/02 |
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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