发明授权
US08106971B2 Apparatus and method for estimating signal-dependent noise in a camera module
有权
用于估计相机模块中的信号相关噪声的装置和方法
- 专利标题： Apparatus and method for estimating signal-dependent noise in a camera module
- 专利标题（中）： 用于估计相机模块中的信号相关噪声的装置和方法
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申请号： US12354886申请日： 2009-01-16
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公开(公告)号： US08106971B2公开(公告)日： 2012-01-31
- 发明人: Min-Woo Lee , Sung-Dae Cho , Yun-Je Oh , Hyun-Hee Park , Min-Kyu Park , Ji-Hye Kim , Il-Kyu Eom , Hyun-Meen Kang
- 申请人： Min-Woo Lee , Sung-Dae Cho , Yun-Je Oh , Hyun-Hee Park , Min-Kyu Park , Ji-Hye Kim , Il-Kyu Eom , Hyun-Meen Kang
- 申请人地址： KR Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do KR Geumjeong-Gu, Pusan
- 专利权人： Samsung Electronics Co., Ltd.,Pusan National University Industry-University Cooperation Foundation
- 当前专利权人： Samsung Electronics Co., Ltd.,Pusan National University Industry-University Cooperation Foundation
- 当前专利权人地址： KR Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do KR Geumjeong-Gu, Pusan
- 代理机构： Cha & Reiter, LLC
- 优先权： KR10-2008-0005450 20080117
- 主分类号： H04N5/217
- IPC分类号： H04N5/217 ; H04N9/64
摘要：
A method and apparatus for estimating signal-dependent noise in a camera module are provided, in which an image is decomposed into high frequency components and low frequency components, a variance of noise in the image is estimated using the low frequency components, noise is eliminated from the high frequency components using the estimated noise variance, and the image is recovered using the noise-eliminated high frequency components and the low frequency components.
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