Refinement of thermal imager minimum resolvable temperature difference calculating method

V. G. Kolobrodov; V. I. Mykytenko

doi:10.1117/12.2228532

30 November 2015 Refinement of thermal imager minimum resolvable temperature difference calculating method

V. G. Kolobrodov, V. I. Mykytenko

Proceedings Volume 9809, Twelfth International Conference on Correlation Optics; 98090C (2015) https://doi.org/10.1117/12.2228532
Event: 12th International Conference on Correlation Optics, 2015, Chernivsti, Ukraine

Abstract

Calculating methods, which accurately predict minimum resolvable temperature difference (MRTD), are of significant interest for many years. The article deals with improvement the accuracy of determining the thermal imaging system MRTD by elaboration the visual perception model. We suggest MRTD calculating algorithm, which is based on a reliable approximation of the human visual system modulation transfer function (MTF) proposed by N. Nill. There was obtained a new expression for the bandwidth evaluation, which is independent of angular size of the Foucault bar target.

Citation Download Citation

V. G. Kolobrodov and V. I. Mykytenko "Refinement of thermal imager minimum resolvable temperature difference calculating method", Proc. SPIE 9809, Twelfth International Conference on Correlation Optics, 98090C (30 November 2015); https://doi.org/10.1117/12.2228532

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