Eliminating the influence of random noise produced by an optical

Details Eliminating the influence of random noise produced by an optical Eliminating the influence of random noise produced by an optical

1997-06-04

2000-10-10

Ho, Tuan

Television

Camera, system and detail

Combined image signal generator and general image signal...

348245, H04N 964

Patent

active

061307122

ABSTRACT:
In order to obtain a reference output from which density nonuniformity and fixed pattern noise are removed using OB pixels in a solid-state image pickup device, a solid-state image pickup device which has a plurality of storage units for storing pixel signals output from a plurality of photoelectric conversion elements, which are formed on a single semiconductor substrate and at least two of which are shielded from light, in correspondence with the photoelectric conversion elements. Pixel signal outputs from the shielded photoelectric conversion elements are subjected to averaging processing on the storage units. Also, in the solid-state image pickup device, the storage units are formed of capacitances, which are electrically and temporarily connected to each other to attain the averaging processing.

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