Optical multiresolution analysis with spatial localization

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 consi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mazzaferri, J., Ledesma, S.
Formato:	JOUR
Materias:	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 Frequency bands Imaging systems Medical applications Optical engineering Optical data processing
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00304018_v283_n10_p2056_Mazzaferri
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00304018_v283_n10_p2056_Mazzaferri
record_format	dspace
spelling	todo:paper_00304018_v283_n10_p2056_Mazzaferri2023-10-03T14:40:16Z Optical multiresolution analysis with spatial localization Mazzaferri, J. Ledesma, S. 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 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. Fil:Mazzaferri, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ledesma, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00304018_v283_n10_p2056_Mazzaferri
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Mazzaferri, J. Ledesma, S. Optical multiresolution analysis with spatial localization
topic_facet	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
description	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.
format	JOUR
author	Mazzaferri, J. Ledesma, S.
author_facet	Mazzaferri, J. Ledesma, S.
author_sort	Mazzaferri, J.
title	Optical multiresolution analysis with spatial localization
title_short	Optical multiresolution analysis with spatial localization
title_full	Optical multiresolution analysis with spatial localization
title_fullStr	Optical multiresolution analysis with spatial localization
title_full_unstemmed	Optical multiresolution analysis with spatial localization
title_sort	optical multiresolution analysis with spatial localization
url	http://hdl.handle.net/20.500.12110/paper_00304018_v283_n10_p2056_Mazzaferri
work_keys_str_mv	AT mazzaferrij opticalmultiresolutionanalysiswithspatiallocalization AT ledesmas opticalmultiresolutionanalysiswithspatiallocalization
_version_	1807321468950806528

Optical multiresolution analysis with spatial localization

Ejemplares similares