Quantitative evaluation of errors in remote measurements using a thermal imager

Michael Y. Engel; Leslie Salem Balfour

doi:10.1117/12.49072

1 April 1991 Quantitative evaluation of errors in remote measurements using a thermal imager

Michael Y. Engel, Leslie Salem Balfour

Proceedings Volume 1442, 7th Mtg in Israel on Optical Engineering; (1991) https://doi.org/10.1117/12.49072
Event: 7th Meeting of Optical Engineering in Israel, 1990, Tel-Aviv, Israel

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.

Citation Download Citation

Michael Y. Engel and Leslie Salem Balfour "Quantitative evaluation of errors in remote measurements using a thermal imager", Proc. SPIE 1442, 7th Mtg in Israel on Optical Engineering, (1 April 1991); https://doi.org/10.1117/12.49072

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