Optimal use of a calibrated infrared imaging radiometer for target signature studies requires rapid analysis and reduction of the output imagery. A minicomputer based digital image processing system is described. Operations such as level slicing, integration of radiant intensities, and image addition are performed digitally in an interactive manner with the system user. An application of this system for the production of simulated infrared targets is presented. The simulated targets consist of transparencies or masks which are back illuminated by an infrared source. A technique somewhat similar to a halftone process is used to encode the pixel intensities onto the masks. The illumination system design and mask fabrication process are described.
T. H May,
G. L. Stamm,
J. A Blodgett,
"Applications Of Digital Processing To Calibrated Infrared Imagery", Proc. SPIE 0256, Infrared Systems, (23 December 1980); doi: 10.1117/12.959584; https://doi.org/10.1117/12.959584