Patent ID: 7705308

Claim:
An image pickup apparatus comprising: a plurality of first pixels which receive both visible light and infrared light; a plurality of second pixels which receive infrared light corresponding respectively to the plurality of first pixels; and a processing unit which obtains a component of visible light incident on a first pixel saturated with the light, by using a relation between an output signal of another unsaturated first pixel different from the saturated first pixel among the plurality of first pixels and an output signal of a second pixel corresponding to said another first pixel, wherein said processing unit includes: a ratio calculation unit which calculates a ratio of the output signal of another first pixel to the output signal of a second pixel corresponding to said another first pixel; a signal estimation unit which multiplies the output signal of a second pixel corresponding to the saturated first pixel, by the ratio calculated by the ratio calculation unit; and a subtractor which subtracts the output of a second pixel corresponding to the saturated first pixel, from a signal obtained from a resulting multiplication in the signal estimation unit.