Patent ID: 8792021
Filing Date: 2014-07-29
Classification: H04N

Abstract:
1. An image capturing apparatus comprising: an image sensor having an effective pixel area composed of effective pixels that photoelectrically convert an object image, and a reference pixel area composed of reference pixels that output pixel signals to be a reference; a first calculation unit configured to calculate values of a statistical measure of the pixel signals output from the reference pixel area; a second calculation unit configured to calculate integrated values with respect to each of rows of the pixel signals output from the reference pixel area; a third calculation unit configured to calculate correction values with respect to each of the rows by multiplying correction coefficients to the integrated value for each of the rows, wherein the correction values are calculated based on the values of the statistical measure; a correction unit configured to correct pixel signals with respect to each of the rows output from the effective pixel area with use of the correction values for each of the rows; and a determination unit configured to determine whether correction is to be performed by the correction unit, in accordance with the values of the statistical measure.