5 October 2017 Anti-aliasing algorithm development
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Abstract
In this paper, we discuss the testing image processing algorithms for mitigation of aliasing artifacts under pulsed illumination. Previously sensors were tested, one with a fixed frame rate and one with an adjustable frame rate, which results showed different degrees of operability when subjected to a Quantum Cascade Laser (QCL) laser pulsed at the frame rate of the fixe-rate sensor. We implemented algorithms to allow the adjustable frame-rate sensor to detect the presence of aliasing artifacts, and in response, to alter the frame rate of the sensor. The result was that the sensor output showed a varying laser intensity (beat note) as opposed to a fixed signal level.

A MIRAGE Infrared Scene Projector (IRSP) was used to explore the efficiency of the new algorithms, introduction secondary elements into the sensor's field of view.
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F. Bodrucki, F. Bodrucki, J. Davis, J. Davis, J. Becker, J. Becker, J. Cordell, J. Cordell, } "Anti-aliasing algorithm development ", Proc. SPIE 10435, Technologies for Optical Countermeasures XIV, 104350K (5 October 2017); doi: 10.1117/12.2278287; https://doi.org/10.1117/12.2278287
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