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

Implementation and performance of shutterless uncooled micro-bolometer cameras

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

Communication, Information, Systems and Sensors

Xenics NV

Research output: Contribution to journal › Conference article › peer-review

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.

Original language	English
Article number	94511G
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9451
Issue number	January
DOIs	https://doi.org/10.1117/12.2177315
Publication status	Published - 2015
Event	41st Conference on Infrared Technology and Applications - Baltimore, United States Duration: 20 Apr 2015 → 23 Apr 2015

Keywords

Uncooled micro-bolometer
residual non-uniformity (RNU)
response uniformity
shutterless operation

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10.1117/12.2177315

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title = "Implementation and performance of shutterless uncooled micro-bolometer cameras",

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.",

keywords = "Uncooled micro-bolometer, residual non-uniformity (RNU), response uniformity, shutterless operation",

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AU - Das, J.

AU - De Gaspari, D.

AU - Cornet, P.

AU - Deroo, P.

AU - Vermeiren, J.

AU - Merken, P.

PY - 2015

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N2 - 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.

AB - 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.

KW - Uncooled micro-bolometer

KW - residual non-uniformity (RNU)

KW - response uniformity

KW - shutterless operation

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VL - 9451

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

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ER -

Implementation and performance of shutterless uncooled micro-bolometer cameras

Abstract

Keywords

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