Patent ID: 6686961
Filing Date: 2004-02-03
Classification: H04N

Abstract:
An image pickup apparatus comprising:an image sensor having first-type, second-type, and third-type pixels each producing a signal corresponding to a first, a second, and a third color respectively, the pixels being arranged in a two dimensional array comprising first-type lines and second-type lines arranged alternately, the first-type lines each comprising first-type and second-type pixels arranged alternately, the second-type lines each comprising first-type and third-type pixels arranged alternately; a first subtracter for calculating a difference between an output of one of the first-type pixels and an output of one of the second-type pixels on thee first-type lines, wherein the one of the first-type pixels is adjacent the one of the second-type pixels; a second subtracter for calculating a difference between an output of another of the first-type pixels and an output of one of the third-type pixels on the second-type lines, wherein the another of the first-type pixels is adjacent the one of the third-type pixels; and a control circuit for driving the image sensor in accordance with the differences calculated by the fist and second subtracters.