发明申请
- 专利标题: METHOD FOR DIGITAL NOISE REDUCTION IN LOW LIGHT VIDEO
- 专利标题(中): 低亮度视频数字噪声减少方法
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申请号: US12116769申请日: 2008-05-07
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公开(公告)号: US20090278961A1公开(公告)日: 2009-11-12
- 发明人: Kamini Kanta Mohanty , Venkatagiri Subbaraya Rao , Jeremy Craig Wilson
- 申请人: Kamini Kanta Mohanty , Venkatagiri Subbaraya Rao , Jeremy Craig Wilson
- 申请人地址: US NJ Morristown
- 专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人: HONEYWELL INTERNATIONAL INC.
- 当前专利权人地址: US NJ Morristown
- 主分类号: H04N5/217
- IPC分类号: H04N5/217
摘要:
A system and method for filtering video noise is provided. Video generated under low lighting conditions is susceptible to increased noise and graininess, which increases the required storage space required for recording the noisy video. The provided system and method for filtering video noise reduces noise in low-light video by estimating the noise profile associated with at least one video frame; discriminating between chrominance noise and luminance noise in said noise profile; applying predetermined filter criteria to said chrominance noise to estimate the parameters for luminance noise filtering; applying said luminance noise filtering parameters to filter the luminance noise; and generating a first filtered output of a frame by logical combination of outputs obtained from luminance noise filter and chrominance noise filter.
公开/授权文献
- US08149336B2 Method for digital noise reduction in low light video 公开/授权日:2012-04-03