Optimum non-uniformity correction for imaging sensors

Details Optimum non-uniformity correction for imaging sensors Optimum non-uniformity correction for imaging sensors

2007-06-12

2007-06-12

Grant, II, Jerome (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S509000, C382S274000

Reexamination Certificate

active

10340594

ABSTRACT:
The present invention relates to a method of generating intensity measurement correction coefficients for a pixel in a focal plane array of an optical sensor, wherein the correction coefficients are used to correct an intensity measurement generated by the pixel responsive to illumination. The method includes the steps of accessing past values of the correction coefficients, receiving a pixel intensity measurement indicative of illumination characterized by a reference energy density function, generating a modeled noise signal, and generating present values of the correction coefficients. The present values of the correction coefficients are generated based on the past values of the correction coefficients, the pixel intensity measurement, the modeled noise signal, and the reference energy density function.

REFERENCES:
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patent: 5710876 (1998-01-01), Peercy et al.
patent: 6738035 (2004-05-01), Fan
patent: 2002/0186875 (2002-12-01), Burmer et al.
patent: 2003/0076989 (2003-04-01), Maayah et al.

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