Results 311 to 320 of about 274,834 (357)

Remote measurement of surface roughness, surface reflectance, and body reflectance with LiDAR

Applied Optics, 2015
Light detection and ranging (LiDAR) intensity data are attracting increasing attention because of the great potential for use of such data in a variety of remote sensing applications. To fully investigate the data potential for target classification and identification, we carried out a series of experiments with typical urban building materials and ...
Xiaolu, Li, Yu, Liang
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Polarized infrared reflectivity of one-dimensional Gaussian sea surfaces with surface reflections

Applied Optics, 2013
Sea surface infrared reflectivity is an important parameter in maritime remote sensing. Usually, single reflection by the sea surface is considered. However, a loss of energy is then reported for large zenith observation angles (θ>50°) with a peak of about 4% for θ≈80°, because of the neglect of the multiple surface reflections.
Li, Hongkun, Pinel, Nicolas, Bourlier, Christophe   +2 more
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Hidden Surfaces, Reflectance, and Shading

1985
A three-dimensional line drawing is generally rather unrealistic, except in a few cases (see the Eiffel Tower in Fig. 7.1). To achieve realism in a computer-generated image, lines which could not really be seen by an observer first must be removed.
Nadia Magnenat-Thalmann, Daniel Thalmann
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Polarized infrared reflectivity of 2D sea surfaces with two surface reflections

Remote Sensing of Environment, 2014
Sea surface infrared reflectivity is an important parameter in oceanic remote sensing. Most analytical models consider single surface reflections, and the polarization is usually ignored. However, a loss of energy is reported for large observation angles (θ > 50°) because multiple surface reflections are ignored.
Li, Hongkun, Pinel, Nicolas, Bourlier, Christophe   +2 more
openaire   +2 more sources

Broadband very low reflectance surface

Applied Optics, 1988
Fabrication d'un systeme optique dans le but de mesurer des tres bas niveaux de lumiere diffusee a l'interieur d'un faible angle ...
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Reflections on surface morphology

Nature Energy, 2021
Electrochromic windows can reduce buildings’ energy demand and improve occupants’ comfort, yet they struggle to fully meet market needs. Now, researchers demonstrate that polymer additives improve light and solar heat modulation of reflective electrochromic windows, with potential for durable, large-scale and low-cost manufacturing.
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Reflectivity of corrugated surfaces

Physica, 1937
Summary The scattering of a plane surface, due to small irregularities is calculated assuming, that the surface is composed of small planes, fortuitously orientated. The probability and the scattering are given in tables.
L.S. Ornstein, Miss A. Van der Burg
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Quantum mechanical surface reflection

Solid-State Electronics, 1971
Abstract We calculate the quantum mechanical reflection of electrons by a potential well model of the surface of Cesium covered p-type gallium arsenide, an efficient photo-emitter. We find that the reflection experiences a resonance phenomenon that can be controlled by adjustment of the impurity concentration.
Tsu-Wei Lee, M.W. Muller
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Reflectance measurements of highly reflecting flat surfaces

Journal of Applied Physics, 1973
We have developed a compensation method for measuring the reflectivity of flat highly reflecting dielectric mirror coatings with the help of a laser beam. Using two coupled cavities it is possible to determine the reflectance of a spot with the diameter of the laser beam with an accuracy of about ± 3 × 10−5.
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Surface Reflectance in MODTRAN®

2019
Multi-spectral and hyperspectral remote-sensing technologies have been developed over the last thirty years for a variety of applications. These technologies cover the entire optical spectrum, ranging from visible to NIR (VNIR), SWIR, MWIR, and LWIR light. The most mature sensor technology currently covers the VNIR–SWIR portion of the optical spectrum,
John Schroeder, Larry B. Stotts
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