Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry

In this work, the source of the artifacts introduced in the images obtained with an optoacoustic tomography system based on the software-defined optoelectronics concept are analyzed and characterized. It is shown that the measured signals are affected both by the cylindrical geometry of the optical...

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Autores principales:	Insabella, Roberto M., González, Martín Germán
Formato:	Artículo publishedVersion
Lenguaje:	Español
Publicado:	FIUBA 2021
Materias:	optoacoustic interferometer electrical noise optoacústica interferómetro ruido eléctrico
Acceso en línea:	https://elektron.fi.uba.ar/elektron/article/view/139 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=139_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-139_oai
record_format	dspace
spelling	I28-R145-139_oai2026-02-11 Insabella, Roberto M. González, Martín Germán 2021-12-15 In this work, the source of the artifacts introduced in the images obtained with an optoacoustic tomography system based on the software-defined optoelectronics concept are analyzed and characterized. It is shown that the measured signals are affected both by the cylindrical geometry of the optical sensor and by electrical noise. The latter has well-defined frequencies within the spectrum caused by the electronics used in the heterodyning process of the ultrasound optical detector. A way to include these effects in simulated signals is proposed and the model is tested against measurements. The results of this work will allow the use of the deep learning technique to improve the quality of the images obtained with this type of tomographic systems. En este trabajo se analizan y caracterizan las fuentes de los artefactos introducidos en las imágenes obtenidas con un sistema para tomografía optoacústica basado en el concepto de optoelectrónica definida por software. Se muestra que las señales medidas están afectadas tanto por la geometría cilíndrica del sensor óptico como por el ruido eléctrico. Este último posee frecuencias bien definidas dentro del espectro atribuibles a la electrónica usada en el proceso de heterodinaje del detector óptico de ultrasonido. Se propone una forma de incluir estos efectos en señales simuladas y se prueba el modelo comparándolo con mediciones. Los resultados de este trabajo permitirán el uso de la técnica de aprendizaje profundo para mejorar la calidad de las imágenes obtenidas con este tipo de sistemas tomográficos. application/pdf text/html https://elektron.fi.uba.ar/elektron/article/view/139 10.37537/rev.elektron.5.2.139.2021 spa FIUBA https://elektron.fi.uba.ar/elektron/article/view/139/260 https://elektron.fi.uba.ar/elektron/article/view/139/265 Derechos de autor 2021 Martin Gonzalez Elektron Journal; Vol. 5 No. 2 (2021); 94-99 Revista Elektron; Vol. 5 Núm. 2 (2021); 94-99 Revista Elektron; v. 5 n. 2 (2021); 94-99 2525-0159 2525-0159 optoacoustic interferometer electrical noise optoacústica interferómetro ruido eléctrico Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry Análisis y modelado de un sistema para tomografía optoacústica basado en interferometría óptica heterodina info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=139_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
language	Español
orig_language_str_mv	spa
topic	optoacoustic interferometer electrical noise optoacústica interferómetro ruido eléctrico
spellingShingle	optoacoustic interferometer electrical noise optoacústica interferómetro ruido eléctrico Insabella, Roberto M. González, Martín Germán Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
topic_facet	optoacoustic interferometer electrical noise optoacústica interferómetro ruido eléctrico
description	In this work, the source of the artifacts introduced in the images obtained with an optoacoustic tomography system based on the software-defined optoelectronics concept are analyzed and characterized. It is shown that the measured signals are affected both by the cylindrical geometry of the optical sensor and by electrical noise. The latter has well-defined frequencies within the spectrum caused by the electronics used in the heterodyning process of the ultrasound optical detector. A way to include these effects in simulated signals is proposed and the model is tested against measurements. The results of this work will allow the use of the deep learning technique to improve the quality of the images obtained with this type of tomographic systems.
format	Artículo publishedVersion
author	Insabella, Roberto M. González, Martín Germán
author_facet	Insabella, Roberto M. González, Martín Germán
author_sort	Insabella, Roberto M.
title	Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
title_short	Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
title_full	Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
title_fullStr	Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
title_full_unstemmed	Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
title_sort	analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry
publisher	FIUBA
publishDate	2021
url	https://elektron.fi.uba.ar/elektron/article/view/139 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=139_oai
work_keys_str_mv	AT insabellarobertom analysisandmodelingofasystemforoptoacoustictomographybasedonheterodyneopticalinterferometry AT gonzalezmartingerman analysisandmodelingofasystemforoptoacoustictomographybasedonheterodyneopticalinterferometry AT insabellarobertom analisisymodeladodeunsistemaparatomografiaoptoacusticabasadoeninterferometriaopticaheterodina AT gonzalezmartingerman analisisymodeladodeunsistemaparatomografiaoptoacusticabasadoeninterferometriaopticaheterodina
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Analysis and modeling of a system for optoacoustic tomography based on heterodyne optical interferometry

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