Analysis of estimation of optical properties of sub superficial structures in multi layered tissue model using distribution function method
| Autor: | Marcin Botwicz, Hervé Rix, Norbert Żołek |
|---|---|
| Přispěvatelé: | Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe SIGNAL, Signal, Images et Systèmes (Laboratoire I3S - SIS), Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA) |
| Rok vydání: | 2020 |
| Předmět: |
Optics and Photonics
Photon Light Health Informatics 030218 nuclear medicine & medical imaging 03 medical and health sciences Superposition principle 0302 clinical medicine [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing Nephelometry and Turbidimetry Image Processing Computer-Assisted Range (statistics) Humans Scattering Radiation Computer Simulation Absorption (electromagnetic radiation) ComputingMilieux_MISCELLANEOUS Physics Photons Spectroscopy Near-Infrared Phantoms Imaging Scattering Electromagnetic Radiation Optical Imaging Brain Reproducibility of Results Computer Science Applications Computational physics Time of flight Error function Distribution function Monte Carlo Method Algorithms 030217 neurology & neurosurgery Software |
| Zdroj: | Computer Methods and Programs in Biomedicine Computer Methods and Programs in Biomedicine, Elsevier, 2020, 183, pp.105084. ⟨10.1016/j.cmpb.2019.105084⟩ |
| ISSN: | 0169-2607 |
| Popis: | Background and objective This paper is focused on the analysis of a method of estimation of the absorption and scattering coefficients of nonhomogeneous two layered structures in time resolved near infrared spectroscopy using method based on cumulative distributions of time of flight of photons. Methods The research is based on the analysis of the superposition of cumulative distributions of time of flight of photons. This approach allows for detailed analysis of small variations in characteristics of time of flight of photons caused by an electromagnetic propagation in highly scattering non-homogeneous media. The method presented, based on the variation of statistical minimum distance estimation, is compared to the method of standard curve fitting. It is analyzed by fitting the results obtained from Monte-Carlo simulations of light propagation in the turbid medium to the data from the simulated measurements. Results The analysis is carried out for a vast range of optical properties of two layered medium in reflectance geometry. Conclusions The method allows the estimation of the optical parameters despite the noise in the measured signal, with higher accuracy and generally with smaller number of error function evaluations. |
| Databáze: | OpenAIRE |
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