发明授权
US5500686A Motion adaptive luminance signal/chrominance signal separation filter
失效
运动自适应亮度信号/色度信号分离滤波器
- 专利标题: Motion adaptive luminance signal/chrominance signal separation filter
- 专利标题(中): 运动自适应亮度信号/色度信号分离滤波器
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申请号: US255797申请日: 1994-06-07
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公开(公告)号: US5500686A公开(公告)日: 1996-03-19
- 发明人: Noriyuki Yamaguchi , Takuji Kurashita , Mitsuru Ishizuka , Junko Kijima , Masaharu Yao
- 申请人: Noriyuki Yamaguchi , Takuji Kurashita , Mitsuru Ishizuka , Junko Kijima , Masaharu Yao
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-77596 19900327; JPX2-189930 19900716; JPX3-026290 19910220
- 主分类号: H04N9/12
- IPC分类号: H04N9/12 ; H04N9/78
摘要:
A filter for motion adaptive Y/C separation, which is capable of obtaining image of high resolution and little picture quality degradation in the case where an image is switched from static one to motion one or vice-versa, is provided with a filter for extracting Y signal outputting Y signal and a filter for extracting C signal outputting C signal, by detecting whether image is motion one or static one by a motion detecting unit, and when motion image is detected, by detecting partially interframe correlation or correlation in three fields, and according to the detection result, by adaptively switching a plurality of processings for extracting intraframe Y signal and a plurality of processings for extracting intraframe C signal.
公开/授权文献
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