Patent ID: 8462241

Claim:
An image sensing apparatus having a pixel array comprising a plurality of common pixel amplifiers and a plurality of pixel columns each including a portion in which pixels of a first color and pixels of a second color are alternately arranged, wherein each of the pixels includes a photoelectric converter and a transfer switch, and wherein photoelectric converters of pixels that form a group in each pixel column are connected to a common pixel amplifier for the group via transfer switches of the pixels that form the group, wherein the transfer switches of the pixels in a first group that includes the pixels of the first color and at least one pixel of the second color are controlled so as to transfer signals of the photoelectric converters of the pixels of the first color in the group to the common pixel amplifier for the first group such that the transferred signals are added, wherein the transfer switches of the pixels in a second group that includes the pixels of the second color and at least one pixel of the first color are controlled so as to transfer signals of the photoelectric converters of the pixels of the second color in the second group to the common pixel amplifier for the second group such that the transferred signals are added, the second group being different from the first group, and wherein first centers of gravity and second centers of gravity are alternately arranged in a direction along the pixel columns, and centers of gravity consisting of the first centers of gravity and the second centers of gravity are arranged at equal pitches, wherein each of the first centers of gravity is a center of gravity of the pixels of the first color in the first group, whose signals are added by the common pixel amplifier for the first group, and wherein each of the second centers of gravity is a center of gravity of the pixels of the second color in the second group, whose signals are added by the common pixel amplifier for the second group.