Invention Grant
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
- Patent Title: Apparatus and method for estimating signal-dependent noise in a camera module
- Patent Title (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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Application No.: US12354886Application Date: 2009-01-16
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Publication No.: US08106971B2Publication Date: 2012-01-31
- Inventor: Min-Woo Lee , Sung-Dae Cho , Yun-Je Oh , Hyun-Hee Park , Min-Kyu Park , Ji-Hye Kim , Il-Kyu Eom , Hyun-Meen Kang
- Applicant: Min-Woo Lee , Sung-Dae Cho , Yun-Je Oh , Hyun-Hee Park , Min-Kyu Park , Ji-Hye Kim , Il-Kyu Eom , Hyun-Meen Kang
- Applicant Address: KR Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do KR Geumjeong-Gu, Pusan
- Assignee: Samsung Electronics Co., Ltd.,Pusan National University Industry-University Cooperation Foundation
- Current Assignee: Samsung Electronics Co., Ltd.,Pusan National University Industry-University Cooperation Foundation
- Current Assignee Address: KR Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do KR Geumjeong-Gu, Pusan
- Agency: Cha & Reiter, LLC
- Priority: KR10-2008-0005450 20080117
- Main IPC: H04N5/217
- IPC: H04N5/217 ; H04N9/64
Abstract:
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.
Public/Granted literature
- US20090185057A1 APPARATUS AND METHOD FOR ESTIMATING SIGNAL-DEPENDENT NOISE IN A CAMERA MODULE Public/Granted day:2009-07-23
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