Patent ID: 7609305
Filing Date: 2009-10-27
Classification: H01L,H04N

Abstract:
1. An image processing system for dynamically correcting shading effects in pixel outputs in an image sensor based upon radial pixel location performed prior to demosaicing processing, comprising: an image sensor, wherein the image sensor comprises at least a pixel array, an array of micro-lenses, and an array of color filters, and wherein means for scanning an analog output from a pixel on the pixel array, wherein the image scanning means is configured to obtain outputs from each pixel in the pixel array; means for converting the analog output from the scanned pixel to a digital output; means for processing a radial location for the scanned pixel, wherein the radial location is determined relative to a reference location on the pixel array; means for calculating a correction factor for the shading effect for the scanned pixel, wherein means for correcting the digital output with the correction factor.