Fixed pattern noise removal in CMOS imagers across various operational conditions
First Claim
Patent Images
1. A method of minimizing noise in an image produced by an electronic imager comprising:
- determining a correction system for a range of imager integration times and a range of imager temperatures for an electronic imager which has taken a series of dark capture images and a series of flat field capture images in a calibration mode; and
applying said correction system to an image produced by said electronic imager in an image capture mode.
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Abstract
A method of minimizing noise in an image produced by an electronic imager comprising: determining a correction system for a range of imager integration times and a range of imager temperatures for an electronic imager which has taken a series of dark capture images and a series of flat field capture images in a calibration mode; and applying the correction system to an image produced by the electronic imager in an image capture mode.
28 Citations
8 Claims
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1. A method of minimizing noise in an image produced by an electronic imager comprising:
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determining a correction system for a range of imager integration times and a range of imager temperatures for an electronic imager which has taken a series of dark capture images and a series of flat field capture images in a calibration mode; and
applying said correction system to an image produced by said electronic imager in an image capture mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of minimizing noise in an image produced by an electronic imager having image capture pixels and dark pixels comprising:
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capturing an image with said image capture pixels; and
correcting said captured image as a function of the mean dark response taken from said imager'"'"'s dark pixels at the time of said image capturing
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Specification