The user of any imaging system is primarily concerned with securing some desired level of perception performance against real world objects of interest under anticipated typical operating conditions. Developing validated predictive models for this 'field' performance involves a number of complexities and sources of uncertainty which are not encountered when modelling hardware performance from objective laboratory measurements. These problems become apparent in the course of describing the basis of a program for generating the perception probability versus range curve for intensifier sights and a statistical trial which was conducted to validate its predictions.
John Sabey, John Sabey,
"Modelling And Validation Of Field Performance Using Image Intensified Sights", Proc. SPIE 0274, Assessment of Imaging Systems II, (29 October 1981); doi: 10.1117/12.931853; https://doi.org/10.1117/12.931853