Invention Grant
- Patent Title: Noise reduction apparatus, method and program for controlling same, image sensor and digital camera
- Patent Title (中): 降噪装置，控制方法和程序，图像传感器和数码相机
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Application No.: US12916022Application Date: 2010-10-29
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Publication No.: US08395684B2Publication Date: 2013-03-12
- Inventor: Makoto Ooishi
- Applicant: Makoto Ooishi
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2006-045392 20060222; JP2006-128056 20060502
- Main IPC: H04N9/73
- IPC: H04N9/73 ; H04N5/217 ; H04N9/07 ; G06K9/00
Abstract:
Image data pixels indicative of the pixels in a noise-reduction target area having a size of 5×5 pixels is extracted from a plurality of types of CCD-RAW data having red, green and blue color components. A filter for reducing uncorrelated noise is calculated. Uncorrelated noise is removed by performing a filter operation using the calculated filter while correlativity of the CCD-RAW data is maintained. These processing steps are repeated for one frame of CCD-RAW data. After uncorrelated noise has been removed, spatial pixel processing such as an aperture correction is applied.
Public/Granted literature
- US20110038538A1 NOISE REDUCTION APPARATUS, METHOD AND PROGRAM FOR CONTROLLING SAME, IMAGE SENSOR AND DIGITAL CAMERA Public/Granted day:2011-02-17
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