Separation of presampling and postsampling modulation transfer functions in infrared sensor systems
Abstract
New methods of measuring the modulation transfer function (MTF) of electro-optical sensor systems are investigated. These methods are designed to allow the separation and extraction of presampling and postsampling components from the total system MTF. The presampling MTF includes all the effects prior to the sampling stage of the imaging process, such as optical blur and detector shape. The postsampling MTF includes all the effects after sampling, such as interpolation filters and display characteristics. Simulation and laboratory measurements are used to assess the utility of these techniques. Knowledge of these components and inclusion into sensor models, such as the U.S. Army RDECOM CERDEC Night Vision & Electronic Sensors Directorate's NVThermIP, will allow more accurate modeling and complete characterization of sensor performance.
Publication Title
Proceedings of SPIE - The International Society for Optical Engineering
Recommended Citation
Espinola, R., Olson, J., O'Shea, P., Hodgkin, V., & Jacobs, E. (2006). Separation of presampling and postsampling modulation transfer functions in infrared sensor systems. Proceedings of SPIE - The International Society for Optical Engineering https://doi.org/10.1117/12.663903
