发明名称 |
METHOD, POST-PROCESSING FILTER, AND VIDEO COMPRESSION SYSTEM FOR SUPPRESSING MOSQUITO AND BLOCKING ARTIFACTS |
摘要 |
The visibility of mosquito and blocking artifacts in a video compression system are effectively suppressed by calculating a postprocessed pixel intensity (300). A post-processed pixel intensity is determined using a predetermined noise variance (304), a predetermined autocorrelation coefficient (306), and a local neighbourhood of pixels (308) that includes a plurality of previously post-processed pixel intensities and a plurality of original pixel intensities. This eliminates the dependency on local signal and noise power estimates. |
申请公布号 |
CA2178961(C) |
申请公布日期 |
2000.05.23 |
申请号 |
CA19952178961 |
申请日期 |
1995.08.31 |
申请人 |
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发明人 |
BRAILEAN, JAMES CHARLES |
分类号 |
G06T5/20;H04N5/21;H04N7/26;H04N7/30;(IPC1-7):H04N7/50 |
主分类号 |
G06T5/20 |
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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