Portable uncooled shutterless camera operating in the long-wavelength infrared range; part I: camera calibration

I. S. Litvinov; D. O. Efimova; N. V. Chernomyrdin; K. I. Zaytsev; A. N. Perov

doi:10.1117/12.2565945

9 April 2020 Portable uncooled shutterless camera operating in the long-wavelength infrared range; part I: camera calibration

I. S. Litvinov, D. O. Efimova, N. V. Chernomyrdin, K. I. Zaytsev, A. N. Perov

Author Affiliations +

Proceedings Volume 11457, Saratov Fall Meeting 2019: Optical and Nano-Technologies for Biology and Medicine; 114570O (2020) https://doi.org/10.1117/12.2565945
Event: Saratov Fall Meeting 2019: VII International Symposium on Optics and Biophotonics, 2019, Saratov, Russian Federation

Abstract

Nowadays, imaging and spectroscopy systems operating in the long-wavelength infrared range (LWIR) are rapidly developed and extensively applied in numerous demanding branches of science and technology. This pushes further developments into the realms of improving the sensitivity and performance of the LWIR systems, as well as reducing their dimensions and cost. Among modern LWIR technologies, uncooled shutterless bolometric matrices form a favorable platform for addressing these challenging problems, being technologically reliable, compact, and cost-effective. Nevertheless, such detectors features high noises and require real-time digital signal processing. In this work, we developed a portable LWIR camera, which relies on a commercial uncooled bolometric matrix, and proposed few approaches aimed at the image acquisition improvement. We described algorithms for image calibration, compression of a dynamic range, and suppression of noises. This algorithms were implemented experimentally in a processing module relying on the Field-Programmable Gate Array (FPGA) and the highspeed double data rate Synchronous Dynamic Random Access Memory (SDRAM). The developed LWIR camera holds strong potential in such applications, as non-destructive sensing and medical imaging.

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I. S. Litvinov, D. O. Efimova, N. V. Chernomyrdin, K. I. Zaytsev, and A. N. Perov "Portable uncooled shutterless camera operating in the long-wavelength infrared range; part I: camera calibration", Proc. SPIE 11457, Saratov Fall Meeting 2019: Optical and Nano-Technologies for Biology and Medicine, 114570O (9 April 2020); https://doi.org/10.1117/12.2565945

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KEYWORDS

Long wavelength infrared

Cameras

Calibration

Sensors

Staring arrays

Video

Black bodies

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