Anti-aliasing algorithm development

F. Bodrucki; J. Davis; J. Becker; J. Cordell

doi:10.1117/12.2278287

5 October 2017 Anti-aliasing algorithm development

F. Bodrucki, J. Davis, J. Becker, J. Cordell

Proceedings Volume 10435, Technologies for Optical Countermeasures XIV; 104350K (2017) https://doi.org/10.1117/12.2278287
Event: SPIE Security + Defence, 2017, Warsaw, Poland

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.

Citation Download Citation

F. Bodrucki, J. Davis, J. Becker, and J. Cordell "Anti-aliasing algorithm development ", Proc. SPIE 10435, Technologies for Optical Countermeasures XIV, 104350K (5 October 2017); https://doi.org/10.1117/12.2278287

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