Patent ID: 7027091
Filing Date: 2006-04-11
Classification: H04N

Abstract:
1. An integrated circuit having a color sensor array (CSA) comprising a sensor array configured with a color filter array (CFA), wherein: the sensor array comprises an array of photosensitive pixels; the CFA comprises an array of color filters; each color filter in the CFA is associated with a photosensitive pixel in the sensor array; a first set of color filters in the CFA is arranged in a first pattern corresponding to a central imaging region of the CSA; and a second set of one or more color filters in the CFA is arranged in a second pattern different from the first pattern and corresponding to a peripheral imaging region of the CSA, such that detection of the second pattern enables characterization of alignment between the sensor array and the CFA in the CSA, wherein the second set has a portion associated with at least one pixel of the sensor array, wherein light impinging upon said portion passes through a filter having a color other than black and is received at said at least one pixel.