Optimal conception of an IR camera

Francois Papini; Jean-Louis Petit; Jean-Pierre David

doi:10.1117/12.34827

1 November 1990 Optimal conception of an IR camera

Francois Papini, Jean-Louis Petit, Jean-Pierre David

Proceedings Volume 1341, Infrared Technology XVI; (1990) https://doi.org/10.1117/12.34827
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

This study deals with the conclusions drawn from infrared thermal analysis experiments that were carried out over a period of several years. In the context of these experiments, we analyzed the aptitude of a system to switch between two functions an imaging and a measuring system for thermal flux. Temperature measurements were not dealt with in this analysis, as temperature readings introduce numerical values associated with material properties and radiative balance that are in no way characte ristic of infrared analysis. Our analysis deals with "single-detector" motion-picture cameras fitted with a "line/column" scanning system and with signal sampling on the amplified output of the detector. The image was thus reconstituted on a micro-computer, using the pixels from the sampling data, with a numerical depth determined by the digital convertor. This analysis was conducted within the constraints imposed by calibration procedures. These constraints are particularly severe when calibrating the spatial frequencies response function (within the frequency range). This calibration leads to a study of the image's structure and of its ability to produce output values that are of the same order of those produced by a measuring device.

Citation Download Citation

Francois Papini, Jean-Louis Petit, and Jean-Pierre David "Optimal conception of an IR camera", Proc. SPIE 1341, Infrared Technology XVI, (1 November 1990); https://doi.org/10.1117/12.34827

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