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METHOD AND APPARATUS FOR COMPENSATING FOR FIXED PATTERN NOISE IN AN IMAGING SYSTEM
METHOD AND APPARATUS FOR COMPENSATING FOR FIXED PATTERN NOISE IN AN IMAGING SYSTEM
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机译:成像系统中固定图案噪声的补偿方法和装置
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摘要
The invention relates to a method and apparatus for configuring an imaging system to compensate for fixed pattern noise, variations in pixel values captured from an image sensor that vary according to a fixed pattern. In a method for configuring an imaging system for compensating an additive term component of fixed pattern noise, a pixel array is exposed to a scene of known radiance and an average white value is determined for each pixel of an array. Each average white value is compared to a predetermined reference value to determine a correction value for each pixel. In a method for configuring an imaging system for compensating both an additive and multiplicative component of fixed pattern noise, a pixel array is exposed to a first scene having a first known radiance, and frames of the scene are captured, and then the array is exposed to a second scene having a second known radiance and frames of the second scene are captured.
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