| 摘要 |
PROBLEM TO BE SOLVED: To provide an imaging apparatus for correcting pixels of a white spot by taking into account an operating temperature and an exposure time of a solid-state image sensor and correcting the white spot without degrading the resolution of an image, and to provide a correction method of a pixel signal. SOLUTION: A white spot detection correction circuit 6 detects the white spot on the basis of the pixel signal outputted from the solid-state image sensor 3 by utilizing a sensor resulting dark current that is a difference between a pixel signal of a light shield pixel and a pixel signal of a vertical transfer register, calculates the sensor resulting dark current in a light shield state, calculates a ratio of the pixel signal of the white spot to the sensor resulting dark current and stores an address of the white spot and the ratio to a white spot ROM 9 in cross-reference with each other. The white spot detection correction circuit 6 multiplies the stored ratio with the sensor resulting dark current of the solid-state image sensor 3 in the operating state to calculate a defective component of the pixel signal of the white spot, and eliminates the defective component of the pixel signal of the white spot by subtracting the defective component from the pixel signal of the white spot to correct the pixel signal of the white spot. COPYRIGHT: (C)2006,JPO&NCIPI
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