发明授权
- 专利标题: Coding distortion removal method by selectively filtering based on a pixel difference
- 专利标题(中): 基于像素差选择性滤波的编码失真去除方法
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申请号: US11929440申请日: 2007-10-30
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公开(公告)号: US08369421B2公开(公告)日: 2013-02-05
- 发明人: Shinya Kadono , Sheng Mei Shen , Teck Wee Foo , Chak Joo Lee , Zhong Xue
- 申请人: Shinya Kadono , Sheng Mei Shen , Teck Wee Foo , Chak Joo Lee , Zhong Xue
- 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: Greenblum & Bernstein, P.L.C.
- 优先权: JP2002-008859 20020117; JP2002-110748 20020412; JP2002-127101 20020426; JP2002-291264 20021003
- 主分类号: H04N7/12
- IPC分类号: H04N7/12
摘要:
Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.
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