Correction for nonuniform flat-field response in focal plane arrays

Donald L. Snyder; Dennis L. Angelisanti; William Hayden Smith; Guang-Ming Dai

doi:10.1117/12.255089

25 October 1996 Correction for nonuniform flat-field response in focal plane arrays

Donald L. Snyder, Dennis L. Angelisanti, William Hayden Smith, Guang-Ming Dai

Proceedings Volume 2827, Digital Image Recovery and Synthesis III; (1996) https://doi.org/10.1117/12.255089
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

An estimation-based method for accommodating nonuniform flat-field response of a focal-plane array is described. This method employs image data directly for performing the flat-field correction and does not rely on a separate flat- field calibration-measurement. This is accomplished by dithering the camera so that the object's focal-plane images acquired in a series of snapshots appear in different positions against the fixed-pattern artifacts caused by nonuniformity of the focal-plane array.

Citation Download Citation

Donald L. Snyder, Dennis L. Angelisanti, William Hayden Smith, and Guang-Ming Dai "Correction for nonuniform flat-field response in focal plane arrays", Proc. SPIE 2827, Digital Image Recovery and Synthesis III, (25 October 1996); https://doi.org/10.1117/12.255089

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