Radiometric calibration of frame transfer CCD camera with uniform source system

Jiankang Zhou; Rongbao Shi; Yuheng Chen; Yuying Zhou; Weimin Shen

doi:10.1117/12.885418

31 December 2010 Radiometric calibration of frame transfer CCD camera with uniform source system

Jiankang Zhou, Rongbao Shi, Yuheng Chen, Yuying Zhou, Weimin Shen

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75445S (2010) https://doi.org/10.1117/12.885418
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

This paper presents a radiometric calibration method based on visibility function and uniform source system. The uniform system is mainly comprised of an integrating sphere and a monitoring silicon detector. The current of the silicon detector with a visibility function filter corresponds to the luminance at the exit port of integrating sphere through standard luminance meter transfer. The radiance at the camera entrance pupil is calculated for different solar zenith angles and Earth surface albedos by the MODTRAN atmospheric code. To simplify the calibration process, the radiance at its entrance pupil is integrated by visibility function. The shift smear of the frame transfer CCD is removed by the radiometric calibration and the amending ratio factor is introduced in the retrieving methods. The imaging experiment verifies the reliability of the calibration method and retrieves good quality image.

Citation Download Citation

Jiankang Zhou, Rongbao Shi, Yuheng Chen, Yuying Zhou, and Weimin Shen "Radiometric calibration of frame transfer CCD camera with uniform source system", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75445S (31 December 2010); https://doi.org/10.1117/12.885418

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