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Fixed-Pattern Noise Elimination Apparatus, Solid-State Image Sensing Apparatus, Electronic Appliance, and Fixed-Pattern Noise Elimination Program

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

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.
机译:固定图案噪声消除装置 4 从固态图像传感器 2 的有效像素输出的图像信号中消除由暗电流引起的固定图案噪声分量。 >在图像感测期间,通过使用:第一暗电流,其基于从固态图像传感器 2 的遮光像素输出的先前获取的信号计算得出,并存储在补偿中数据存储器 6 ;根据从固态图像传感器 2 的有效像素输出的,没有入射光的先前获取的信号计算出的第二暗电流,该第二暗电流存储在补偿数据存储器 6中;以及和第三暗电流,该第三暗电流是根据在图像感测期间从固态图像传感器 2 的遮光像素输出的信号计算得出的。利用该配置,可以与固态图像传感器的温度无关地有效地消除由暗电流引起的固定模式噪声分量。

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