发明名称 |
Nachfilterung zur Entfernung von Artefakten in DCT-codierten Bildern |
摘要 |
A video signal encoding/decoding system reduces ringing noise by using a post-filter which performs anisotropic diffusion on decoded data. The exemplary system uses an encoding/decoding technique such as that developed by the Moving Picture Experts Group (MPEG). The post-filter processes individual blocks of pixels, assigning an individual edge significance threshold to each block. Noise removal occurs if the edge strength is below the threshold and is inhibited if the edge strength is above the threshold. <IMAGE> |
申请公布号 |
DE69631108(D1) |
申请公布日期 |
2004.01.29 |
申请号 |
DE1996631108 |
申请日期 |
1996.10.18 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
DEVANEY, PATRICK WILLIAM;GNANAPRAKASAM, DANIEL CHANDRAN;LEACOCK, THOMAS JAMES |
分类号 |
G06T9/00;H04N1/41;H04N5/21;H04N7/26;H04N7/30;H04N7/50;H04N9/64;(IPC1-7):H04N7/30 |
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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