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Proceedings Paper

Quantitative evaluation of errors in remote measurements using a thermal imager
Author(s): Michael Y. Engel; Leslie Salem Balfour
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Paper Abstract

This work presents quantitative evaluation of errors in measurement that arise in using a thermal imager as a radiometer. The analysis will mainly deal with the 7 13 micron spectral region . The main sources contributing to errors in spatial radiometric measurements can be divided into three categories: 1) inaccuracies in determining atmospheric transmittance and path radiance, 2) calibration errors and dynamic range problems due to nonlinearities of instrument response, 3) errors due to spatial response arising from the finite point spread function and non uniformities of the field of view. The contribution of each of these factors to the final cumulative error in the measured radiometric quantity will be analysed and the sensitivity to the individual factors shown. This analysis is done with respect to an existing measurement system in use, namely the AGEMA 780 Dual Band Thermovision Imager.

Paper Details

Date Published: 1 April 1991
PDF: 10 pages
Proc. SPIE 1442, 7th Mtg in Israel on Optical Engineering, (1 April 1991); doi: 10.1117/12.49072
Show Author Affiliations
Michael Y. Engel, Technion--Israel Institute of Technology (Israel)
Leslie Salem Balfour, Technion--Israel Institute of Technology (Israel)


Published in SPIE Proceedings Vol. 1442:
7th Mtg in Israel on Optical Engineering

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