Invention Grant
- Patent Title: Optical chromatic aberration correction and calibration in digital cameras
- Patent Title (中): 数码相机中的光学色差校正和校准
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Application No.: US13342153Application Date: 2012-01-02
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Publication No.: US08654240B2Publication Date: 2014-02-18
- Inventor: Dudi Vakrat , Victor Pinto
- Applicant: Dudi Vakrat , Victor Pinto
- Applicant Address: US CA Sunnyvale
- Assignee: CSR Technology, Inc.
- Current Assignee: CSR Technology, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Perkins Coie LLP
- Main IPC: H04N5/225
- IPC: H04N5/225 ; H04N17/02 ; G06K9/40

Abstract:
Methods and the corresponding device are presented for the correction of lateral chromatic aberration within a digital camera or other imaging device, using calibration approaches that do not require previously acquired lens data to effect the correction. An in-camera auto-calibration procedure is performed on the attached lens, such as when a lens is exchanged, and extracts parameters required for chromatic aberration correction, respecting zoom and focus, from one or more captured images. Based on image data extracted as a plurality of channels of a chromatic decomposition of the image, the chromatic aberration information for the lens is extracted. From the chromatic aberration information, the correction factors for the lens are determined.
Public/Granted literature
- US20120098996A1 OPTICAL CHROMATIC ABERRATION CORRECTION AND CALIBRATION IN DIGITAL CAMERAS Public/Granted day:2012-04-26
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