发明名称 |
Kodierung eines Bewegungsbildsignals |
摘要 |
<p>A valid/invalid detection section 1 generates an original valid block map based on a difference between frames. The current and previous valid block maps are weighted within weight sections 2 and 3 respectively and are thereafter summed up to compose them. After isolated valid blocks are removed from the composed valid block map within a segmentation section 5, it is determined whether or not a moving object exists and the direction of the moving object is determined based on the distribution of the valid block map. If a significant movement is detected, then blocks around the object are weighted at the movement direction side. Another segmentation section 7 determines valid blocks with reference to interest blocks and neighbor blocks, and isolated invalid block section 8 removes isolated invalid blocks to generate a complete valid block map. Encoding is performed based on the complete valid block map. <IMAGE></p> |
申请公布号 |
DE69215577(T2) |
申请公布日期 |
1997.06.12 |
申请号 |
DE1992615577T |
申请日期 |
1992.05.01 |
申请人 |
NEC CORP., TOKIO/TOKYO, JP |
发明人 |
MURATA, ERI, C/O NEC CORPORATION, MINATO-KU, TOKYO, JP |
分类号 |
G06T9/00;H03M7/36;H04N11/04;H04N19/00;H04N19/20;H04N19/423;H04N19/503;H04N19/593;(IPC1-7):H04N7/32;H04N5/14 |
主分类号 |
G06T9/00 |
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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