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Title: | Nonlinear filtering in object and Fourier space in a joint transform optical correlator: comparison and experimental realization |
Author: | Vallmitjana i Rico, Santiago Carnicer González, Arturo Martín Badosa, Estela Juvells Prades, Ignacio |
Keywords: | Reconeixement òptic de formes Filtres (Matemàtica) Optical pattern recognition Filters (Mathematics) |
Issue Date: | 1995 |
Publisher: | Optical Society of America |
Abstract: | The use of different kinds of nonlinear filtering in a joint transform correlator are studied and compared. The study is divided into two parts, one corresponding to object space and the second to the Fourier domain of the joint power spectrum. In the first part, phase and inverse filters are computed; their inverse Fourier transforms are also computed, thereby becoming the reference in the object space. In the Fourier space, the binarization of the power spectrum is realized and compared with a new procedure for removing the spatial envelope. All cases are simulated and experimentally implemented by a compact joint transform correlator. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1364/AO.34.003942 |
It is part of: | Applied Optics, 1995, vol. 34, p. 3942-3949 |
URI: | http://hdl.handle.net/2445/24288 |
Related resource: | http://dx.doi.org/10.1364/AO.34.003942 |
ISSN: | 0003-6935 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
Files in This Item:
File | Description | Size | Format | |
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112315.pdf | 1.73 MB | Adobe PDF | View/Open |
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