Passive scene-based nonuniformity correction in scanning forward-looking infrared sensors

James A. Harder

doi:10.1117/12.351648

2 July 1999 Passive scene-based nonuniformity correction in scanning forward-looking infrared sensors

James A. Harder

Proceedings Volume 3787, Optical Scanning: Design and Application; (1999) https://doi.org/10.1117/12.351648
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The performance of modern infrared sensors is more likely to be limited by residual non-uniformity artifacts in the imagery, than by the performance of individual elements in the focal plane array. A highly effective method of achieving passive scene based non-uniformity correction in scanning forward-looking infrared sensors is described. A single optical element located in the afocal provides gain, offset and clamping functions on a continuous basis. It offers many advantages over current active and passive non- uniformity correction mechanisms. Several devices have been built and demonstrated.

Citation Download Citation

James A. Harder "Passive scene-based nonuniformity correction in scanning forward-looking infrared sensors", Proc. SPIE 3787, Optical Scanning: Design and Application, (2 July 1999); https://doi.org/10.1117/12.351648

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