Laser speckle contrast imaging in biomedical optics
David A. Boas,Andrew K. Dunn +1 more
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TLDR
The underlying physics of speckle contrast imaging is reviewed, recent developments to improve the quantitative accuracy of blood flow measures are discussed and applications in neuroscience, dermatology and ophthalmology are reviewed.Abstract:
First introduced in the 1980s, laser speckle contrast imaging is a powerful tool for full-field imaging of blood flow. Recently laser speckle contrast imaging has gained increased attention, in part due to its rapid adoption for blood flow studies in the brain. We review the underlying physics of speckle contrast imaging and discuss recent developments to improve the quantitative accuracy of blood flow measures. We also review applications of laser speckle contrast imaging in neuroscience, dermatology and ophthalmology.read more
Citations
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Journal ArticleDOI
Effect of pulsed electromagnetic fields stimulation on ischemic skin model
TL;DR: In this article, the authors evaluated the effect of pulsed electromagnetic fields (PEMF) in improving blood flow reduction and tissue necrosis of ischemic animal induced by skin flap.
Journal ArticleDOI
Classifying hidden colors behind an opaque layer with the acoustically modulated laser speckle contrast technique.
Terence S. Leung,Shihong Jiang +1 more
TL;DR: The acoustically modulated laser speckle contrast technique has been employed to quantify and classify 25 colors hidden behind a 5 mm thick opaque layer with 0.24% transmittance.
Proceedings ArticleDOI
Speckle contrast calculation based on pixels correlation: spatial analysis
Beatriz Coyotl-Ocelotl,Julio César . Juárez Ramírez,Ruben Ramos-Garcia,R. Chiu,Teresita Spezzia-Mazzocco,Julio C. Ramirez-San-Juan +5 more
TL;DR: In this paper, the authors proposed an alternative method that considers correlations of the central pixel with the other pixels, and found a better agreement of the contrast measurement with their numerical calculation.
Journal ArticleDOI
Biospeckle Analysis and Biofilm Electrostatic Tests, Two Useful Methods in Microbiology
Emilia Oleandro,Simonetta Grilli,Romina Rega,Martina Mugnano,Vittorio Bianco,Marika Valentino,Biagio Mandracchia,Filomena Nazzaro,Raffaele Coppola,Pietro Ferraro +9 more
TL;DR: The Biofilm Electrostatic Test (BET) as discussed by the authors was proposed to evaluate the resistance of biofilm-producing microorganisms to a pyro-electrified carrier after only 2 h of incubation.
Journal ArticleDOI
Numerical model for evaluating the speckle activity and characteristics of bone tissue under the biospeckle laser system
TL;DR: In this paper, the composition and characteristics of biospeckle on the surface of bone tissues were studied and a laser speckle device was used to capture the patterns from fresh pig bone.
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