发明授权
US5903680A Image data recursive noise filter with reduced temporal filtering of
higher spatial frequencies
失效
图像数据递归噪声滤波器，具有较低空间频率的时间滤波
- 专利标题： Image data recursive noise filter with reduced temporal filtering of higher spatial frequencies
- 专利标题（中）： 图像数据递归噪声滤波器，具有较低空间频率的时间滤波
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申请号： US792321申请日： 1997-01-31
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公开(公告)号： US5903680A公开(公告)日： 1999-05-11
- 发明人: Gerard De Haan , Tatiana G. Kwaaitaal-Spassova , Robert J. Schutten
- 申请人： Gerard De Haan , Tatiana G. Kwaaitaal-Spassova , Robert J. Schutten
- 申请人地址： NY New York
- 专利权人： U.S. Philips Corporation
- 当前专利权人： U.S. Philips Corporation
- 当前专利权人地址： NY New York
- 优先权： EPX96200250 19960205
- 主分类号： H04N5/21
- IPC分类号： H04N5/21 ; H04N7/00 ; G06K9/40
摘要：
An image data recursive noise filter wherein relatively high spatial frequency components of the image data are either not filtered at all or are filtered to a lesser degree than relatively low spatial frequency components of the image data. This minimizes blurring of fine low-contrast detail and also avoids "freezing" of noise in undetailed moving areas of the image.
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