Journal ArticleDOI
Determining the optical properties of turbid media by using the adding–doubling method
TLDR
A method is described for finding the optical properties of a slab of turbid material by using total reflection, unscattered transmission, and total transmission measurements and the intrinsic error in the method is < 3% when four quadrature points are used.Abstract:
A method is described for finding the optical properties (scattering, absorption, and scattering anisotropy) of a slab of turbid material by using total reflection, unscattered transmission, and total transmission measurements. This method is applicable to homogeneous turbid slabs with any optical thickness, albedo, or phase function. The slab may have a different index of refraction from its surroundings and may or may not be bounded by glass. The optical properties are obtained by iterating an adding–doubling solution of the radiative transport equation until the calculated values of the reflection and transmission match the measured ones. Exhaustive numerical tests show that the intrinsic error in the method is <3% when four quadrature points are used.read more
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Book ChapterDOI
Color Science and Its Application in Dentistry
María del Mar Pérez Gómez,Razvan Ghinea,Ana Maria Ionescu,Oscar Emilio Pecho Yataco,Alvaro Della Bona +4 more
TL;DR: This chapter is essential to understand color science and optical properties, assisting any dental professional in performing and interpreting color science studies, improving the practice of esthetic dentistry by applying such knowledge to design and manufacture restorative material systems and, finally, to restore the missing dental structures.
Proceedings ArticleDOI
Transurethral illumination probe design for deep photoacoustic imaging of prostate
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Proceedings ArticleDOI
Optical properties of parietal peritoneum in the spectral range 350- 2500 nm
M. D. Kozintseva,Alexey N. Bashkatov,Vyacheslav I. Kochubey,Elina A. Genina,Sergey Yu. Gorodkov,Dmitry A. Morozov,Valery V. Tuchin +6 more
TL;DR: In this paper, the optical properties of parietal peritoneum in the wavelength range of 350-2500 nm were measured using LAMBDA 950 spectrophotometer with an integrating sphere.
Journal ArticleDOI
Ultra-Short Laser Pulses Propagation Through Mouse Head Tissues: Experimental and Computational Study
TL;DR: In this paper , a prototype and verification of a multichannel laser system applicable to optogenetic research is presented. But the experimental results and computer modelling demonstrate that about 10-12% of the initial laser radiation can reach the brain tissues.
Proceedings ArticleDOI
The photonic device for integrated evaluation of collateral circulation of lower extremities in patients with local hypertensive-ischemic pain syndrome
TL;DR: Surgical treatment of local hypertensive –ischemic pain syndrome of amputation stumps of lower extremities by means of semiclosed fasciotomy in combination with revasculating osteotrepanation enabled to improve considerably regional hemodynamics in the tissues of the stump and decrease pain and hypostatic disorders.
References
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Journal ArticleDOI
A simplex method for function minimization
John A. Nelder,R. Mead +1 more
TL;DR: A method is described for the minimization of a function of n variables, which depends on the comparison of function values at the (n 41) vertices of a general simplex, followed by the replacement of the vertex with the highest value by another point.
Book
Introduction to Numerical Analysis
Josef Stoer,Roland Bulirsch +1 more
TL;DR: This well written book is enlarged by the following topics: B-splines and their computation, elimination methods for large sparse systems of linear equations, Lanczos algorithm for eigenvalue problems, implicit shift techniques for theLR and QR algorithm, implicit differential equations, differential algebraic systems, new methods for stiff differential equations and preconditioning techniques.
Journal ArticleDOI
A review of the optical properties of biological tissues
TL;DR: The known optical properties (absorption, scattering, total attenuation, effective attenuation and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed in this article.
Journal ArticleDOI
New contributions to the optics of intensely light-scattering materials.
TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.