发明名称 |
Video signal compression apparatus using noise reduction |
摘要 |
<p>Noise reduction circuitry, in a video signal compression apparatus of the predictive DPCM compression type includes a simple nonlinear processing element (500) within the DPCM loop (12,15,16,18,1333) to eliminate residues between predicted and real image signals, which are smaller than a predetermined value. Elimination of such residues dramatically reduces the amount of compressed data generated for signals including even modest amounts of noise. <IMAGE></p> |
申请公布号 |
EP0649262(B1) |
申请公布日期 |
1999.12.22 |
申请号 |
EP19940115633 |
申请日期 |
1994.10.05 |
申请人 |
RCA THOMSON LICENSING CORPORATION |
发明人 |
HURST, ROBERT NORMAN, JR.;CASAVANT, SCOTT DAVID;MEEHAN, PAUL HARQUAIL |
分类号 |
H04N7/32;G06T9/00;H03M7/36;H04N5/911;H04N7/26;H04N7/36;H04N7/50;(IPC1-7):H04N7/50 |
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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