发明授权
- 专利标题： Block distortion detection method, block distortion detection apparatus, block distortion removal method, and block distortion removal apparatus
- 专利标题（中）： 块失真检测方法，块失真检测装置，块失真消除方法和块失真消除装置
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申请号： US11061465申请日： 2005-02-22
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公开(公告)号： US07706450B2公开(公告)日： 2010-04-27
- 发明人: Satoshi Kondo , Tetsuya Itani
- 申请人： Satoshi Kondo , Tetsuya Itani
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2000-320595 20001020
- 主分类号： H04N7/12
- IPC分类号： H04N7/12 ; H04N11/02 ; H04N11/04 ; H04B1/66
摘要：
A video decoder is connected with a block distortion detector for specifying the boundary of blocks where block boundary occurs, using decoded image data and information of motion vectors, which are supplied from the video decoder; and a block distortion remover for subjecting pixels in the vicinity of the block boundary of the decoded image to filtering on the basis of the result of detection from the block distortion detector, thereby removing the block distortion. Therefore, block distortion is accurately detected when a compressed and coded image is decoded, and the detected block distortion is removed while minimizing the blurriness of the image.
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