Patent ID: 7538805

Claim:
A solid-state image pickup apparatus comprising: a plurality of photo-sensors arranged in a direction of row and a direction of column, each of said plurality of photo-sensors corresponding to a particular pixel included in an imaging frame, each of said plurality of photo-sensors comprising a first photosensitive cell having first sensitivity for photoelectrically transducing incident light to generate a signal charge and a second photosensitive cell having second sensitivity lower than the first sensitivity for photoelectrically transducing incident light to generate a signal charge; and a corrector executing shading correction on a first image signal derived from said first photosensitive cell in accordance with a shading characteristic of said first photosensitive cell, and on a second image signal derived from said second photosensitive cell in accordance with a shading characteristic of said second photosensitive cells, wherein said first photosensitive cell has a first photosensitive area and the second photosensitive cell has a second photosensitive area smaller than the said first photosensitive area, and wherein the shading characteristic of said first photosensitive cell used by said corrector relates to said first photosensitive area and the shading characteristic of said second photosensitive cell used by said corrector relates to said second photosensitive area.