ÐThis paper presents the measurement of colored object reflectance, under different, general assumptions regarding the imaging conditions. We exploit the Gaussian scale-space paradigm for color images to define a framework for the robust measurement of object reflectance from color images. Object reflectance is derived from a physical reflectance model based on the Kubelka-Munk theory for color...

This work is devoted to the preparation of dense Ag+ conductive ceramic solid electrolytes in Ag6PS5I‒Ag7GeS5I system and study their electrical optical properties. Using non-destructive simple method diffuse reflectance spectroscopy, value pseudogap energy Ag6+x(P1-xGex)S5I (x=0, 0.25, 0.5, 0.75, 1.0) solutions was obtained using Kubelka-Munk function with application Tauc's graphic method. As...

PURPOSE To compare the success rate of monocanalicular versus bicanalicular silicone intubation of the nasolacrimal duct for congenital nasolacrimal duct obstruction (CNLDO). METHODS In a prospective randomized clinical trial, 70 eyes of 57 children with CNLDO underwent either monocanalicular silicone intubation (MCI) (n = 35 eyes) or bicanalicular silicone intubation (BCI) (n = 35 eyes). All...

Observations of scattering of low-frequency sound in the ocean have focused largely on effects at long ranges, involving multiple scattering events. Fluctuations due to one and two scattering events are analyzed here, using 75-Hz broadband signals transmitted in the eastern North Pacific Ocean. The experimental geometry gives two purely refracted arrivals. The temporal and vertical scales of ph...

We relate the Kubelka-Munk equations for description of intensity transfer light in turbid media to a one-dimensional diffusion equation, which is obtained by averaging three-dimensional equation over lateral directions. This enables us identify uniquely parameters and derive expressions diffuse reflection transmission coefficients including effect internal reflections. Without reflections we r...

A supramolecular cocrystal of 2-ammino-5-nitropyridine (ANP) with 2,4-dinitrophenol (DNP) has been successfully grown by the slow evaporation solution growth technique. The crystal structure 2-amino-5-nitropyridine-2,4-dinitrophenol (ANDP) was elucidated single-crystal X-ray diffraction analysis, and it belongs to a monoclinic system centrosymmetric space group P21/n. bulk phase purity homogene...

Expressions relating the bispectral reflectance of a stack of n fluorescing layers to each individual layer's reflectance and transmittance are derived. This theoretical framework is used together with recently proposed extensions of the Kubelka-Munk model to study the fluorescence from layered turbid media. For one layer over a reflecting background, the model is shown to give the same results...

The colour of colon tissue, which depends on the tissue structure, its optical properties, and the quantities of the pigments present in it, can be predicted by a physics-based model of colouration. The model, created by analysing light interaction with the tissue, is aimed at correlating the histology of the colon and its colours. This could be of a great diagnostic value, as the development o...