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Proceedings Paper

Feature extraction using a multichannel correlator
Author(s): Javier Mazzaferri; Silvia A. Ledesma; Claudio C. Iemmi
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Paper Abstract

We propose here a method to optically perform multiple feature extraction using wavelet transforms. The method is based on obtaining the optical correlation by means of a Vander Lugt architecture, where the scene and the filter are displayed on spatial light modulators (SLM). Multiple phase filters containing the information about the features that we are interested on extracting are designed and then displayed on a SLM working in mostly phase mode. We have designed filters where edges and corners or different characteristic frequencies contained on the input scene are detected. Simulated and experimental results are shown.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524850
Show Author Affiliations
Javier Mazzaferri, Univ. de Buenos Aires (Argentina)
Silvia A. Ledesma, Univ. de Buenos Aires (Argentina)
Claudio C. Iemmi, Univ. de Buenos Aires (Argentina)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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