发明名称 Adaptive video prefilter
摘要 A method for adaptively filtering a video signal prior to encoding is provided. The method initiates with calculating a local gradient indicative of a region type. Then, a weight factor is determined based upon the local gradient. Next, the weight factor is applied to a difference signal according to the region type. A computer readable media, an integrated circuit and a system for processing an image data signal are also provided.
申请公布号 US7394856(B2) 申请公布日期 2008.07.01
申请号 US20030666668 申请日期 2003.09.19
申请人 SEIKO EPSON CORPORATION 发明人 BHASKARAN VASUDEV
分类号 H04N7/12;H04N7/26 主分类号 H04N7/12
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