Effects of threshold on multiple-target detection by using a modified amplitude-modulated joint transform correlator

PItchaya Kaewkasi; Joewono Widjaja; Jun Uozumi

doi:10.1117/1.2835698

1 January 2008 Effects of threshold on multiple-target detection by using a modified amplitude-modulated joint transform correlator

PItchaya Kaewkasi, Joewono Widjaja, Jun Uozumi

Author Affiliations +

Optical Engineering, Vol. 47, Issue 1, 017206 (January 2008). https://doi.org/10.1117/1.2835698

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.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

PItchaya Kaewkasi, Joewono Widjaja, and Jun Uozumi "Effects of threshold on multiple-target detection by using a modified amplitude-modulated joint transform correlator," Optical Engineering 47(1), 017206 (1 January 2008). https://doi.org/10.1117/1.2835698

Published: 1 January 2008

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