Estimation of scattering phase function utilizing laser Doppler power density spectra

Autor: Roman Maniewski, Hervé Rix, Stanislaw Wojtkiewicz, Piotr Sawosz, Adam Liebert
Přispěvatelé: Nalecz Institute of Biocybernetics and Biomedical Engineering, Polska Akademia Nauk = Polish Academy of Sciences (PAN), 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: 2013
Předmět:
Erythrocytes
Photon
Light
Monte Carlo method
Normal Distribution
01 natural sciences
Noise (electronics)
Light scattering
010309 optics
Normal distribution
Signal-to-noise ratio
Optics
[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing
0103 physical sciences
Laser-Doppler Flowmetry
Humans
Scattering
Radiation
Computer Simulation
Radiology
Nuclear Medicine and imaging
Anisotropy
Physics
Photons
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Models
Statistical
Radiological and Ultrasound Technology
Phantoms
Imaging
Scattering
business.industry
010401 analytical chemistry
Reproducibility of Results
Equipment Design
0104 chemical sciences
[SDV.IB]Life Sciences [q-bio]/Bioengineering
business
Monte Carlo Method
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
Algorithms
Zdroj: Physics in Medicine and Biology
Physics in Medicine and Biology, IOP Publishing, 2013, pp. 937-955. ⟨10.1088/0031-9155/58/4/937⟩
ISSN: 1361-6560
0031-9155
Popis: International audience; A new method for the estimation of the light scattering phase function of particles is presented. The method allows us to measure the light scattering phase function of particles of any shape in the full angular range (0° - 180°) and is based on analysis of laser Doppler power density spectra. The theoretical background of the method and results of its validation using data from Monte Carlo simulations will be presented. For estimation of the scattering phase function, a phantom measurement setup is proposed containing a laser Doppler measurement system and a simple model in which a liquid sample flows through a glass tube fixed in an optically turbid material. The scattering phase function estimation error was thoroughly investigated in relation to the light scattering anisotropy factor g. The error of g estimation is lower than 10% for anisotropy factors larger than 0.5 and decreases with increase of the anisotropy factor (e.g. for g = 0.98, the error of estimation is 0.01%). The analysis of influence of the noise in the measured laser Doppler spectrum showed that the g estimation error is lower than 1% for signal to noise ratio higher than 50 dB.
Databáze: OpenAIRE
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