Design and evaluation of three-level composite filters obtained by optimizing a compromise average performance measure

Charles D. Hendrix; Bhagavatula Vijaya Kumar

doi:10.1117/12.170734

1 June 1994 Design and evaluation of three-level composite filters obtained by optimizing a compromise average performance measure

Charles D. Hendrix, Bhagavatula Vijaya Kumar

Author Affiliations +

Optical Engineering, Vol. 33, Issue 6, (June 1994). https://doi.org/10.1117/12.170734

Abstract

Correlation filters with three transmittance levels ( +1 , 0, and -1) are of interest in optical pattern recognition because they can be implemented on available spatial light modulators and because the zero level allows us to include a region of support (ROS). The ROS can provide additional control over the filter's noise tolerance and peak sharpness. A new algorithm based on optimizing a compromise average performance measure (CAPM) is proposed for designing three-level composite filters. The performance of this algorithm is compared to other three-level composite filter designs using a common image database and using figures of merit such as the Fisher ratio, error rate, and light efficiency. It is shown that the CAPM algorithm yields better results.

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Charles D. Hendrix and Bhagavatula Vijaya Kumar "Design and evaluation of three-level composite filters obtained by optimizing a compromise average performance measure," Optical Engineering 33(6), (1 June 1994). https://doi.org/10.1117/12.170734

Published: 1 June 1994

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