Compensating Fixed Pattern Noise of an image sensor

摘要

The invention relates to a method for compensating for fixed pattern noise of an image sensor (12) having a plurality of pixels (20), in which the signal of a respective pixel (20) is corrected on the basis of a dark current determined for this pixel (20). The temperature T of the image sensor (12) is measured and the dark current of each pixel (20) is determined by a previously for that pixel (20) at a reference temperature T _Ref certain reference dark current (DC _{Ref, PD,} DC _{ref, Sp)} with a temperature-dependent adjustment factor to the temperature T is adjusted.