Invention Grant
- Patent Title: Coding distortion removal method by selectively filtering based on a pixel difference
- Patent Title (中): 基于像素差选择性滤波的编码失真去除方法
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Application No.: US11929440Application Date: 2007-10-30
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Publication No.: US08369421B2Publication Date: 2013-02-05
- Inventor: Shinya Kadono , Sheng Mei Shen , Teck Wee Foo , Chak Joo Lee , Zhong Xue
- Applicant: Shinya Kadono , Sheng Mei Shen , Teck Wee Foo , Chak Joo Lee , Zhong Xue
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2002-008859 20020117; JP2002-110748 20020412; JP2002-127101 20020426; JP2002-291264 20021003
- Main IPC: H04N7/12
- IPC: H04N7/12
Abstract:
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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