IMAGING UNIT, SENSITIVITY CORRECTION METHOD, AND CORRECTION COEFFICIENT CALCULATION APPARATUS AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide an imaging unit capable of surely correcting dispersion in the sensitivity of each pixel of a solid-state imaging device with a simple configuration. SOLUTION: Calculating a correction coefficient on the basis of an image signal obtained by imaging a uniform imaging object and multiplying the correction coefficient with an image signal obtained by imaging an optional imaging object can accurately correct sensitivity dispersion of each pixel of the solid-state imaging device. Further, calculating correction coefficients by each of a plurality of correction patterns decided by either or a combination of the lens position of an imaging lens and the aperture value of an aperture respectively, selecting the correction coefficient of the correction pattern corresponding to the lens position of the imaging lens and the aperture value of the aperture in imaging, and multiplying the selected correction coefficient with an image signal can more accurately correct the sensitivity dispersion through the use of the correction coefficient in response to the shape of a luminous flux of an imaging light made incident onto the solid-state imaging device. COPYRIGHT: (C)2004,JPO