Modulation transfer function (MTF) measurement of a thermal imaging system from the edge response function has been described. The measurement includes determination of the overall system modulation transfer function. The effects of different parameters have been analyzed.
"Modulation Transfer Function (MTF) Measurement Of Thermal Imaging System From The Edge Response Function," Optical Engineering 22(6), 226743 (1 December 1983). https://doi.org/10.1117/12.7973232