Image pickup apparatus including image pickup devices having sensitivity in infrared region
First Claim
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1. 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.
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Abstract
A plurality of first pixels receive both visible light and infrared light. A plurality of second pixels receive infrared light. A ratio calculation unit calculates the ratio of an output signal of another first pixel different from saturated first pixel and an output signal of a second pixel corresponding to the another first pixel. A signal estimation unit multiplies the output signal of a second pixel corresponding to the saturated first pixel, by the ratio calculated by the ratio calculation unit. A subtractor subtracts the output of a second pixel corresponding to the saturated first pixel, from a signal estimated as an output signal of the saturated first pixel.
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Citations
10 Claims
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1. An image pickup apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image pickup apparatus comprising:
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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 pixel; 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 calculation unit which calculates a difference between the output signal of another first pixel and the output signal of a second pixel corresponding to said another first pixel; a signal estimation unit which adds the difference calculated by the calculation unit, to the output signal of a second pixel corresponding to the saturated first pixel; and a subtractor which subtracts the output of a second pixel corresponding to the saturated first pixel, from a signal obtained from a resulting addition in said signal estimation unit.
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Specification