Patent ID: 7773130
Filing Date: 2010-08-10
Classification: H04N

Abstract:
1. A signal processing apparatus to be used for a solid-state image pickup element having a plurality of output systems configured to output video signals obtained from pixels arranged in a column direction, the apparatus comprising: amendment means for amending an error value of each column in the video signals output from the solid-state image pickup element; subtraction means for subtracting the error value amended by the amendment means for each column from the video signals output from the solid-state image pickup element; and error value computing means for shielding the solid-state image pickup element from light or irradiating light to the solid-state image pickup element at a constant rate, for computing a respective average value of each of a plurality of pixel signals obtained from the pixels in a predetermined region of the solid-state image pickup element, for subtracting the respective average value from a respective of the plurality of pixel signals obtained from the pixels of the solid-state image pickup element, and for accumulating values obtained by subtractions for respective columns.