Results 11 to 20 of about 27,474 (263)
ReDDLE-Net: Reflectance Decomposition for Directional Light Estimation
Photonics, 2022 The surfaces of real objects can visually appear to be glossy, matte, or anywhere in between, but essentially, they display varying degrees of diffuse and specular reflectance.
Jiangxin Yang +6 more
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Reflectometers for Absolute and Relative Reflectance Measurements in the Mid-IR Region at Vacuum
Sensors, 2021 We demonstrated spectral reflectometers for two types of reflectances, absolute and relative, of diffusely reflecting surfaces in directional-hemispherical geometry.
Jinhwa Gene, Min Yong Jeon, Sun Do Lim
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Carbon Nanotube (CNT) Honeycomb Cell Area-Dependent Optical Reflectance
Nanomaterials, 2016 The relationship between the physical structure of carbon nanotube (CNT) honeycomb structures and their total, diffuse, and specular reflectance is investigated for the first time.
Junthorn Udorn +2 more
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Diagnostics, 2023 This article is devoted to the experimental validation of the possibility of early detection of precancerous lesions in the oral mucosa in vivo using diffuse reflectance spectroscopy in the wavelength range from 360 to 1000 nm. During the study, a sample
Alexander V. Kolpakov +10 more
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On reflected diffusions in cones and cylinders
Ukrains’kyi Matematychnyi Zhurnal, 2023 UDC 519.21 Let X be a diffusion in a cone with oblique reflection at the boundary. We study the question whether X reaches a vertex of the cone for a finite time with positive probability. We propose new probabilistic method of investigation connected with the long-term behavior of a diffusion reflected in a cylinder.
Kulyk, Oleksii +2 more
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Artificial neural networks based estimation of optical parameters by diffuse reflectance imaging under in vitro conditions [PDF]
Journal of Innovative Optical Health Sciences, 2017 Optical parameters (properties) of tissue-mimicking phantoms are determined through noninvasive optical imaging. Objective of this study is to decompose obtained diffuse reflectance into these optical properties such as absorption and scattering ...
Mahmut Ozan Gökkan, Mehmet Engin
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BMC Gastroenterology, 2009 Background The purpose of the study is to determine the optical properties and their differences for normal human stomach mucosa/submucosa tissue in the cardiac orifice in vitro at 635, 730, 808, 890 and 980 nm wavelengths of laser.
Wu Guo +5 more
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ASSESSMENT OF BOTTOM-OF-ATMOSPHERE REFLECTANCE IN LIDAR DATA AS REFERENCE FOR HYPERSPECTRAL IMAGERY [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 While airborne lidar has confirmed its leading role in delivering high-resolution 3D topographic information during the last decade, its radiometric potential has not yet been fully exploited.
A. Roncat, N. Pfeifer, C. Briese
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Diffuse Reflections in Simple Polygons [PDF]
Electronic Notes in Discrete Mathematics, 2013 Abstract We prove a conjecture of Aanjaneya, Bishnu, and Pal that the maximum number of diffuse reflections needed for a point light source to illuminate the interior of a simple polygon with n walls is ⌊ n / 2 ⌋ − 1 . Light reflecting diffusely leaves a surface in all directions, rather than at an identical angle as with specular ...
Gill Barequet +6 more
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