Automated filter optimization using simulated annealing in the frequency domain

Wilburn E. Reddick

doi:10.1117/12.23436

Abstract

The Fourier transforming properties of coherent imaging systems are well known and thoroughly developed. Optical spatial filtering techniques for coherent imaging systems are also a well developed field of study. Most of the advances in spatial filtering techniques were developed for systems with a known set of input characteristics. Once these filters were developed, they were static and unable to change wih a new set of inputs exhibiting a different set of characteristics. This paper will present the theoretical basis and desiy of an adaptive coherent imaging system using a two-dimensional spatial light modulator (5124) in the frequency plane. A computer controller is used as a feedback loop from the output plane back to the 5124. The filter implemented by the SLM is developed by simulated annealing. This iterative process enables the filter to adapt to a variety of inputs and automatically optimize given sufficient iterations. This paper will also present feasible applications of this technique in image processing and pattern recognition.

Citation Download Citation

Wilburn E. Reddick, "Automated filter optimization using simulated annealing in the frequency domain", Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); doi: 10.1117/12.23436; https://doi.org/10.1117/12.23436

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