Patent ID: 6765614
Filing Date: 2004-07-20
Classification: H04N

Abstract:
A pixel defect compensating apparatus comprising:extracting means for extracting a pixel signal from an array of pixel signals, which is outputted from a solid-state image sensor of an all-pixel readout system and indicates one color component out of a plurality of color components of pixel information of one pixel within a predetermined area of a picture, wherein said pixel signal is composed of a same color component; pixel defect discriminating means for comparing pixel information of a specific pixel in the pixel signal extracted by said extracting means with pixel information of other pixels than said specific pixel in said pixel signal and for discriminating whether or not pixel defect is present in said specific pixel; and pixel defect compensating means for compensating pixel information of said specific pixel by using pixel information of pixels other than said specific pixel in said pixel signal and for outputting a compensated pixel information when said specific pixel is discriminated by said pixel defect discriminating means such that a pixel defect is present, and for outputting said pixel information of said specific pixel as it is when said specific pixel is discriminated by said pixel defect discribinating means such that a pixel defect is not present in said specific pixel; said pixel defect compensating apparatus is further characterized in that said pixel defect compensating means compensates pixel information of upper and lower pixels adjacent to said specific pixel simultaneously.