Implementation and performance of shutterless uncooled micro-bolometer cameras

J. Das; D. de Gaspari; P. Cornet; P. Deroo; J. Vermeiren; P. Merken

doi:10.1117/12.2177315

8 June 2015 Implementation and performance of shutterless uncooled micro-bolometer cameras

J. Das, D. de Gaspari, P. Cornet, P. Deroo, J. Vermeiren, P. Merken

Proceedings Volume 9451, Infrared Technology and Applications XLI; 94511G (2015) https://doi.org/10.1117/12.2177315
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

A shutterless algorithm is implemented into the Xenics LWIR thermal cameras and modules. Based on a calibration set and a global temperature coefficient the optimal non-uniformity correction is calculated onboard of the camera. The limited resources in the camera require a compact algorithm, hence the efficiency of the coding is important. The performance of the shutterless algorithm is studied by a comparison of the residual non-uniformity (RNU) and signal-to-noise ratio (SNR) between the shutterless and shuttered correction algorithm. From this comparison we conclude that the shutterless correction is only slightly less performant compared to the standard shuttered algorithm, making this algorithm very interesting for thermal infrared applications where small weight and size, and continuous operation are important.

Citation Download Citation

J. Das, D. de Gaspari, P. Cornet, P. Deroo, J. Vermeiren, and P. Merken "Implementation and performance of shutterless uncooled micro-bolometer cameras", Proc. SPIE 9451, Infrared Technology and Applications XLI, 94511G (8 June 2015); https://doi.org/10.1117/12.2177315

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