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Proceedings Paper

Object Recognition By Optical Detection Of Irradiance Moments
Author(s): K. Hess; R. Dandliker
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Paper Abstract

Irradiance moments are very adequat for object recognition, since they give an approximation of increasing accuracy and object characteristics independent of shift, rotation and scale can be calculated thereof. Irradiance moments can be obtained by optical detection of the derivatives at the origin of the Fourier spectrum. The quantitative determination of these moments from measured intensity and phase samples in the optical Fourier spectrum has been studied theoretically and experimentally. From intensity measurements only second and forth order moments can be deduced. First and third order moments were obtained from the phase, measured in a 12 point array using heterodyne detection.

Paper Details

Date Published: 8 January 1987
PDF: 8 pages
Proc. SPIE 0700, 1986 Intl Optical Computing Conf, (8 January 1987); doi: 10.1117/12.936935
Show Author Affiliations
K. Hess, University of Neuchatel (Switzerland)
R. Dandliker, University of Neuchatel (Switzerland)

Published in SPIE Proceedings Vol. 0700:
1986 Intl Optical Computing Conf
Asher A. Friesem; Emanuel Marom; Joseph Shamir, Editor(s)

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