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

dc.creatorJULIO CESAR RAMIREZ SAN JUAN
dc.creatorEmilia Margarita Méndez Aguilar
dc.creatorNOEMI JASMIN SALAZAR HERMENEGILDO
dc.creatorÁNGEL FUENTES GARCIA
dc.creatorRUBEN RAMOS GARCIA
dc.date2013-08-30
dc.date.accessioned2023-07-25T16:25:08Z
dc.date.available2023-07-25T16:25:08Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2191
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7807371
dc.descriptionLaser 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.
dc.formatapplication/pdf
dc.languageeng
dc.publisherBIOMEDICAL OPTICS EXPRESS
dc.relationcitation: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
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Inspec/Speckle imaging
dc.subjectinfo:eu-repo/classification/Inspec/Velocimetry
dc.subjectinfo:eu-repo/classification/Inspec/Speckle
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/22
dc.subjectinfo:eu-repo/classification/cti/2209
dc.subjectinfo:eu-repo/classification/cti/2209
dc.titleEffects of speckle/pixel size ratio on temporal and spatial speckle-contrast analysis of dynamic scattering systems: Implications for measurements of blood-flow dynamics
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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