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Sdobnov, A., Bykov, A., Popov, A., Meglinski, I. A., & Zherebtsov, E. (2018). Investigation of speckle pattern dynamics by laser speckle contrast imaging. In J. Popp, V. V. Tuchin, & F. S. Pavone (Eds.), Biophotonics: Photonic Solutions for Better Health Care VI (p. 8). SPIE. https://doi.org/10.1117/12.2306631

Investigation of speckle pattern dynamics by laser speckle contrast imaging

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Author: Sdobnov, Anton1; Bykov, Alexander1; Popov, Alexey1;
Organizations: 1Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu 90570, Finland
2Aston Institute of Photonic Technologies, School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham, UK B4 7ET
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 3 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2022111665789
Language: English
Published: SPIE, 2018
Publish Date: 2022-11-16
Description:

Abstract

Laser speckle contrast imaging (LSCI) is a simple and quite powerful method for visualization of flow, microcirculation and perfusion. In current study the speckle contrast variations towards breaking ergodicity conditions are considered with a final aim of envision a practical approach allowing real-time imaging of variations in dynamic properties of complex fluids with an opportunity of quantitative interpretation of the obtained flowing map. As example of systems with static to dynamic transition, melting of Intralipid samples were studied. Also, investigation of influence of static layer thickness above the dynamic sample on the ergodicity condition has been studied.

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Series: Proceedings of SPIE
ISSN: 0277-786X
ISSN-E: 1996-756X
ISSN-L: 0277-786X
Issue: 10685
DOI: 10.1117/12.2306631
OADOI: https://oadoi.org/10.1117/12.2306631
Host publication: Biophotonics : Photonic Solutions for Better Health Care VI, 23-26 April 2018, Strasbourg, France
Host publication editor: Popp, Jürgen
Tuchin, Valery V.
Saverio Pavone, Francesco
Conference: Biophotonics
Type of Publication: B3 Article in conference proceedings
Field of Science: 114 Physical sciences
Subjects:
ergodicity
motion estimation
optical imaging
speckle contrast
speckle pattern
Article
Funding: This work was supported by the CIMO Fellowships program (21.3.16/TM-16-10089/CIMO Fellowship/WS19), EDUFI Fellowship program (13.10.17/TM-17-10655/EDUFI Fellowship/WS 19) and the Academy of Finland (Grant No. 290596)
Academy of Finland Grant Number: 290596
Detailed Information: 290596 (Academy of Finland Funding decision)
Copyright information: © (2018) Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.