Patent ID: 7271380
Filing Date: 2007-09-18
Classification: G01J,H04N

Abstract:
1. A method of operating a photosensitive apparatus, the apparatus including a plurality of pixels, each pixel including a first photosensor sensitive to a first color and a second photosensor sensitive to a second color, wherein the first photosensor and the second photosensor are associated with a single pixel, wherein there are provided a plurality of pixels in the apparatus, comprising: for each pixel, exposing the first photosensor and the second photosensor to light of substantially the first color, thereby deriving test signals from the first photosensor and the second photosensor; for each pixel, exposing the first photosensor and the second photosensor to light of substantially the second color, thereby deriving test signals from the first photosensor and the second photosensor; deriving from the test signals a cross-color correction factor for each pixel, the cross-color correction factor being related to migration of charge between the first photosensor and the second photosensor in the pixel; using the cross-color correction factor for each pixel in processing signals output from the first photosensor and the second photosensor when an image is being recorded.