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
Materias
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
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
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