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Fixed-Pattern Noise Elimination Apparatus, Solid-State Image Sensing Apparatus, Electronic Appliance, and Fixed-Pattern Noise Elimination Program
Fixed-Pattern Noise Elimination Apparatus, Solid-State Image Sensing Apparatus, Electronic Appliance, and Fixed-Pattern Noise Elimination Program
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机译:固定模式噪声消除设备,固态图像传感设备,电子设备和固定模式噪声消除程序
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摘要
A fixed-pattern noise elimination apparatus 4 eliminates a fixed-pattern noise component resulting from dark current out of an image signal outputted from an effective pixel of a solid-state image sensor 2 during image sensing, by using: a first dark current that is calculated based on a previously acquired signal outputted from a light-shielded pixel of the solid-state image sensor 2 and that is stored in a compensation data memory 6; a second dark current that is calculated based on a previously acquired signal outputted from the effective pixel of the solid-state image sensor 2 with no incident light and that is stored in the compensation data memory 6; and a third dark current that is calculated based on a signal outputted from the light-shielded pixel of the solid-state image sensor 2 during image sensing. With this configuration, a fixed-pattern noise component resulting from dark current can be effectively eliminated irrespective of the temperature of the solid-state image sensor.
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