The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2020
Filed:
Apr. 20, 2018
Amd (Shanghai) Co. Ltd., Shanghai, CN;
AMD (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
Techniques for correcting image data in a lens shading correction circuit include accessing numerical constants associated with channels of a captured image represented by a pixel array from a memory. The techniques further include calculating lens shading correction factors for the captured image for each pixel of a channel in the pixel array according to the x-y pixel position of the pixel based on a lens shading correction formula and the numerical constants. For the channel in the pixel array, the correction formula applies different subsets of the numerical constants to different radial portions of the pixel array. The techniques also includes performing lens shading correction for the captured image based on the calculated lens shading correction factors to produce corrected image data, and storing the corrected image data in a non-transitory computer-readable medium.