Definition of fixed-pattern noise

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DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers

Photonics Dictionary

fixed-pattern noise: Fixed-pattern noise is the measure of the static (nontemporal) differences between pixels when the detector is evenly illuminated. In microbolometers, this effect is mostly caused by mismatch between active pixels and blind reference pixels and is heavily dependent on the substrate temperature of the detector.

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