Patent ID: 7567277

Claim:
An image pickup device comprising: a solid-state image pickup element having a pixel part including pixels arrayed in a matrix of lines and columns, the pixel part including an effective pixel area to be irradiated with light, a vertical light-shielded pixel area where irradiation of light is shielded, and a horizontal light-shielded pixel area where irradiation of light is shielded, a vertical scanning circuit which controls control electrodes of pixels arranged a line and connected in common by a vertical selection line, a horizontal scanning circuit which controls control electrodes of vertical signal lines connected in common to main electrodes of pixels arranged in a column, and an output circuit which outputs pixel signals; a light-shielding section which shuts off light irradiated on the effective pixel area; a black level value detector which detects black level values of the vertical light-shielded pixel area, the horizontal light-shielded pixel area, and the effective pixel area, based on the pixel signals; a comparator which compares the black level values; a noise component detector which detects a noise component contained in pixel signals outputted from pixels arranged in the vertical light-shielded pixel area; a noise corrector which corrects noise contained in pixel signals outputted from pixels arranged in the effective pixel area, based on the noise component detected by the noise component detector; a controller which controls the noise component detector and the noise corrector, based on a comparison result of the comparator; and a black level value subtraction unit which subtracts the black level value of the horizontal light-shielded pixel area from pixel signals from the vertical light-shielded pixel area and subtracts the black level value of the horizontal light-shielded pixel area from pixel signals from the effective pixel area, wherein the noise component detector detects a noise component contained in the pixel signals from the vertical light-shielded pixel area, which have been processed by the black level value subtraction unit, and the noise corrector corrects noise contained in the pixel signals from the effective pixel area, which have been processed by the black level value subtraction unit.