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Optical Engineering

Effects of threshold on multiple-target detection by using a modified amplitude-modulated joint transform correlator
Author(s): PItchaya Kaewkasi; Joewono Widjaja; Jun Uozumi
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Paper Abstract

Effects of the threshold value on the multiple-target detection performance of a modified amplitude-modulated joint transform correlator are studied on the basis of computer simulations, using human fingerprint and face images. Correlation outputs are quantitatively measured by means of a primary-to-secondary peak ratio and a peak-to-correlation-deviation ratio. The simulation results reveal that the detection of high-contrast targets can be optimized by using a low-threshold. In the case of low-contrast targets, the optimization depends on spatial-frequency contents and noise.

Paper Details

Date Published: 1 January 2008
PDF: 12 pages
Opt. Eng. 47(1) 017206 doi: 10.1117/1.2835698
Published in: Optical Engineering Volume 47, Issue 1
Show Author Affiliations
PItchaya Kaewkasi, Suranaree Univ. of Technology (Thailand)
Joewono Widjaja, Suranaree Univ. of Technology (Thailand)
Jun Uozumi, Hokkai-Gakuen Univ. (Japan)


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