Título

Effects of speckle/pixel size ratio on temporal and spatial speckle-contrast analysis of dynamic scattering systems: Implications for measurements of blood-flow dynamics

Autor

JULIO CESAR RAMIREZ SAN JUAN

Emilia Margarita Méndez Aguilar

NOEMI JASMIN SALAZAR HERMENEGILDO

ÁNGEL FUENTES GARCIA

RUBEN RAMOS GARCIA

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

Speckle imaging - (INSPEC) Velocimetry - (INSPEC) Speckle - (INSPEC) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) FÍSICA - (CTI) ÓPTICA - (CTI) ÓPTICA - (CTI)

Resumen o descripción

Laser Speckle Contrast Imaging (LSCI) is an optical technique used to generate blood flow maps with high spatial and temporal resolution. It is well known that in LSCI, the speckle size must exceed the Nyquist criterion to maximize the speckle's pattern contrast. In this work, we study experimentally the effect of speckle-pixel size ratio not only in dynamic speckle contrast, but also on the calculation of the relative flow speed for temporal and spatial analysis. Our data suggest that the temporal LSCI algorithm is more accurate at assessing the relative changes in flow speed than the spatial algorithm.

Editor

BIOMEDICAL OPTICS EXPRESS

Fecha de publicación

30 de agosto de 2013

Tipo de publicación

Artículo

Versión de la publicación

Versión aceptada

Recurso de información

http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2191

Formato

application/pdf

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Público en general

Sugerencia de citación

Ramírez-San-Juan, J. C., et al., (2013). Effects of speckle/pixel size ratio on temporal and spatial speckle-contrast analysis of dynamic scattering systems: Implications for measurements of blood-flow dynamics, BIOMEDICAL OPTICS EXPRESS, Vol. 4(10):1883-1889

Repositorio Orígen

Repositorio Institucional del INAOE

Descargas

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