Object Recognition By Optical Detection Of Irradiance Moments

K. Hess; R. Dandliker

doi:10.1117/12.936935

8 January 1987 Object Recognition By Optical Detection Of Irradiance Moments

K. Hess, R. Dandliker

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Proceedings Volume 0700, 1986 Intl Optical Computing Conf; (1987) https://doi.org/10.1117/12.936935
Event: 1986 International Computing Conference, 1986, Jerusalem, Israel

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.

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K. Hess and R. Dandliker "Object Recognition By Optical Detection Of Irradiance Moments", Proc. SPIE 0700, 1986 Intl Optical Computing Conf, (8 January 1987); https://doi.org/10.1117/12.936935

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