Perfusion measurement on skin model with lasca affected by static and mixed scattering

Tomi Smausz, Bence Kondász

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

When classical data evaluation methods are applied in Laser Speckle Contrast Analysis (LASCA) measurement of skin perfusion, the accuracy is considerably limited by the significant static scattering of the skin. Therefore, different methods were elaborated for reducing the effect of static scattering, either based on application of a wide range of exposure times or application of single exposure time in combination with more sophisticated data analysis on speckle images [1-3]. In these methods the speckle pattern is considered to be created by photons which are either backscattered from the static surface layer or from the moving scattering centres, e.g. red blood cells. The application of such correction methods resulted in significant enhancement of the accuracy during test measurements made on microsphere emulsions, however, the values of so obtained correlation times of the speckle fluctuation (τ) can be tendentiously higher as the scattering from the static layer placed above the emulsion becomes more dominant. Our aim is study the relationship between the measured discrepancy and scattering properties of the experimental model using our earlier developed multiple exposure measurement and data evaluation method [3].

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - Jun 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: Jun 23 2019Jun 27 2019

Publication series

Name2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
CountryGermany
CityMunich
Period6/23/196/27/19

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ASJC Scopus subject areas

  • Spectroscopy
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications

Cite this

Smausz, T., & Kondász, B. (2019). Perfusion measurement on skin model with lasca affected by static and mixed scattering. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8872762] (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOE-EQEC.2019.8872762