Artículo
Abstract:
Multiresolution analysis is very useful for characterization of textures, segmentation tasks, and feature enhancement. The development of optical methods to perform such procedures is highly promissory for real-time applications. Usually, the optical implementations of multiresolution analysis consist in the decomposition of the input scene in different frequency bands, obtaining various filtered versions of the scene. However, under certain circumstances it could be useful to provide just one version of the scene where the different filters are applied in different regions. This procedure could be specially interesting for biological and medical applications in situations when the approximate localization of the scale information is known a priori. In this paper we present a fully optical method to perform multiresolution analysis with spatial localization. By means of the proposed technique, the multi-scale analysis is performed at once in a unique image. The experimental set-up consist of a double-pass convergent optical processor. The first stage of the device allows the multiple band decomposition, while the second stage confines the information of each band to different regions of the object and recombines it to achieve the desired operation. Numerical simulations and experimental results, which prove the very good performance of the method, are presented. © 2010.
Registro:
| Documento: | Artículo |
| Título: | Optical multiresolution analysis with spatial localization |
| Autor: | Mazzaferri, J.; Ledesma, S. |
| Filiación: | Image Processing Laboratory (LPI), Physics Department, 'J.J. Giambiagi', FCEyN, University of Buenos Aires, Argentina |
| Palabras clave: | Feature extraction; Fourier optics; Image processing; Multiresolution analysis; Apriori; Different frequency; Double pass; Experimental setup; Feature enhancement; Multi scale analysis; Multiple-band; Numerical simulation; Optical implementations; Optical methods; Optical processors; Real-time application; Spatial localization; Computer simulation; Feature extraction; Frequency bands; Image processing; Imaging systems; Medical applications; Multiresolution analysis; Optical engineering; Optical data processing |
| Año: | 2010 |
| Volumen: | 283 |
| Número: | 10 |
| Página de inicio: | 2056 |
| Página de fin: | 2060 |
| DOI: | http://dx.doi.org/10.1016/j.optcom.2010.01.018 |
| Título revista: | Optics Communications |
| Título revista abreviado: | Opt Commun |
| ISSN: | 00304018 |
| CODEN: | OPCOB |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v283_n10_p2056_Mazzaferri |
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Citas:
---------- APA ----------
Mazzaferri, J. & Ledesma, S. (2010) . Optical multiresolution analysis with spatial localization. Optics Communications, 283(10), 2056-2060.http://dx.doi.org/10.1016/j.optcom.2010.01.018
---------- CHICAGO ----------
Mazzaferri, J., Ledesma, S. "Optical multiresolution analysis with spatial localization" . Optics Communications 283, no. 10 (2010) : 2056-2060.http://dx.doi.org/10.1016/j.optcom.2010.01.018
---------- MLA ----------
Mazzaferri, J., Ledesma, S. "Optical multiresolution analysis with spatial localization" . Optics Communications, vol. 283, no. 10, 2010, pp. 2056-2060.http://dx.doi.org/10.1016/j.optcom.2010.01.018
---------- VANCOUVER ----------
Mazzaferri, J., Ledesma, S. Optical multiresolution analysis with spatial localization. Opt Commun. 2010;283(10):2056-2060.http://dx.doi.org/10.1016/j.optcom.2010.01.018
