Evaluation of computational radiometric and spectral sensor calibration techniques

Alkhazur Manakov

doi:10.1117/12.2228071

29 April 2016 Evaluation of computational radiometric and spectral sensor calibration techniques

Alkhazur Manakov

Proceedings Volume 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV; 98960O (2016) https://doi.org/10.1117/12.2228071
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Radiometric and spectral calibration are essential for enabling the use of digital sensors for measurement purposes. Traditional optical calibration techniques require expensive equipment such as specialized light sources, monochromators, tunable filters, calibrated photo-diodes, etc. The trade-offs between computational and physics-based characterization schemes are, however, not well understood. In this paper we perform an analysis of existing computational calibration schemes and elucidate their weak points. We highlight the limitations by comparing against ground truth measurements performed in an optical characterization laboratory (EMVA 1288 standard). Based on our analysis, we present accurate and affordable methods for the radiometric and spectral calibration of a camera.

Citation Download Citation

Alkhazur Manakov "Evaluation of computational radiometric and spectral sensor calibration techniques", Proc. SPIE 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV, 98960O (29 April 2016); https://doi.org/10.1117/12.2228071

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