Patent ID: 8570415
Filing Date: 2013-10-29
Classification: H04N

Abstract:
1. An image sensing system comprising: an image sensor in which a plurality of pixels are arranged in a matrix, wherein the plurality of pixels include a plurality of photoelectric conversion elements, a plurality of source follower amplifiers configured to amplify and convert charges accumulated in a plurality of accumulation units into voltage signals, a plurality of transfer units configured to transfer charges generated in the plurality of photoelectric conversion elements to the plurality of accumulation units, a plurality of selection switches configured to connect the plurality of source follower amplifiers to corresponding ones of a plurality of output lines that are arranged for a plurality of columns, and a plurality of column circuits provided for the plurality of output lines; a correction data acquiring unit configured to acquire correction data based on signals generated by operating the plurality of column circuits with the plurality of selection switches off; and a correction unit configured to correct signals from the plurality of pixels using the correction data with the plurality of selection switches on.