Estimation of optical properties of turbid media: experimental comparison of spatially and temporally resolved reflectance methods.
We compare two methods for the optical characterization of turbid media. The estimates of the absorption and reduced scattering coefficients (mu(a) and mu(')(s)) by a spatially resolved method and a time-resolved method are performed on tissue-like phantoms. Aqueous suspension of microspheres and Intralipid are used as scattering media with the addition of ink as an absorber. mu(')(s) is first measured on weakly absorbing media. The robustness of these measurements is then tested with respect to a variation of mu(a). The spatially resolved method gave more accurate estimates for mu(')(s) whereas the time-resolved method gave better results for mu(a) estimates.
Falconet
Julie
J
CREATIS-LRMN, INSA de Lyon, Université Claude Bernard Lyon 1, Université de Lyon, CNRS UMR 5220, Inserm U630, ESCPE, Domaine scientifique de la Doua, 3 rue Victor Grignard, 69616 Villeurbanne Cedex, France. julie.falconet@univ-lyon1.fr
Laidevant
Aurélie
A
Sablong
Raphaël
R
da Silva
Anabela
A
Berger
Michel
M
Jaillon
Franck
F
Perrin
Emmanuel
E
Dinten
Jean-Marc
JM
Saint-Jalmes
Hervé
H
D000465:Algorithms; D003102:Colloids / Q000737:chemistry*; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D010783:Photometry / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D003102:Colloids