Showing papers on "Digital image correlation published in 1986"
TL;DR: In this article, a photorefractive-based optical image correlator which employs a frequency-doubled, pulsed Nd: YAG laser with a pulse length of 10 ns to write a phase grating into a crystal of bismuth silicon oxide was demonstrated.
Abstract: We describe initial experiments on a photorefractive-based optical image correlator which employs a frequency-doubled, pulsed Nd: YAG laser with a pulse length of 10 ns to write a phase grating into a crystal of bismuth silicon oxide. The correlation of simple binary images has been demonstrated, and measurements indicate that the rise time of the correlation signal is less than 200 ns.
3 citations