搜索结果: 1-15 共查到“光学工程 Surfaces”相关记录15条 . 查询时间(0.183 秒)
PARAMETRIC SURFACES FOR AUGMENTED ARCHITECTURE REPRESENTATION
3D modeling Parametric surfaces Normal distribution Complex architecture Augmented Reality
2019/3/4
Augmented Reality (AR) represents a growing communication channel, responding to the need to expand reality with additional information, offering easy and engaging access to digital data. AR for archi...
OPTO-TECHNICAL MONITORING – A STANDARDIZED METHODOLOGY TO ASSESS THE TREATMENT OF HISTORICAL STONE SURFACES
Monitoring Cultural Heritage 3D Scanning UV-VIS-IR photography Preservation Sciences Non-Destructive Testing Methods
2018/6/4
Monitoring is an essential requirement for the planning, assessment and evaluation of conservation measures. It should be based on a standardized and reproducible observation of the historical surface...
matching topographic surfaces by retrieving and modeling 3d discrepancies. application to lidar data and photogrammetric surfaces
Lidar 3D registration robust estimation matching data fusion DSM
2015/9/1
If photogrammetry has been used for a long time to describe the topography, airborne laser systems are nowadays well-known to provide an accurate representation of terrestrial landscapes through irreg...
Multi-spectral data acquisition and processing techniques for damage detection on building surfaces
Cultural Heritage Multispectral Terrestrial Laser Scanning Classification Acquisition Detection Recording
2015/8/25
This paper describes the development and investigation of a multi-spectral laser scanner for non destructive diagnosis of damages on building surfaces. The application of four semiconductor lasers as ...
L AND LASER SCANNING DATA FOR THE CHARACTERIZATION OF SURFACES IN URBAN AREAS
Hyper spectral LIDAR Reconstruction Classifi cation Urban
2015/7/30
A recent project of the Engler-Bunte-Institute (EBI), chair of water chemistry, and the Institute of Photogrammetry and
Remote Sensing (IPF) aims at the quantitative assessment of pollutants on urban...
Modelling the appearance of heritage metallic surfaces
Cultural Heritage Imaging 3D model Photogrammetry Photometric stereo Rendering Specularity
2014/7/30
Polished metallic surfaces exhibit a high degree of specularity, which makes them difficult to reproduce accurately. We have applied two different techniques for modelling a heritage object known as t...
Efficient computation of equifrequency surfaces and density of states in photonic crystals using Dirichlet-to-Neumann maps
Efficient computation equifrequency surfaces photonic crystals Dirichlet-to-Neumann maps
2015/8/10
We present an efficient method for computing the equifrequency surfaces (EFSs) and density of states of a photonic crystal. The method is based on repeatedly solving a small nonlinear eigenvalue probl...
Optical Sensing of Attached Fibrinogen on Carbon Doped Titanium Surfaces
HPF spectroscopic cuvette dielectric constant
2011/4/21
The adsorption/desorption of Human Plasma fibrinogen (HPF) molecules on biosurfaces was measured in spectroscopic cuvette by a diffractive optical element- (DOE-) based sensor. To characterize the sur...
Roughness characterization of well-polished surfaces by measurements of light scattering distribution
light scattering roughness bidirectional reflectance distribution function
2011/5/9
According to vector scattering and scalar scattering theory, the relationship of BRDF (bidirectional
reflectance distribution function) of light scattering from micro-rough surface with TIS (total
i...
Nanotomography of Cell Surfaces with Evanescent Fields
Nanotomography Cell Surfaces Evanescent Fields
2009/5/19
The technique of variable-angle total internal reflection fluorescence microscopy (TIRFM) and its application to nanotomography of cell surfaces are described. Present applications include (1) 3D imag...
Skew ray tracing and error analysis of optical elements with ellipsoid boundary surfaces
skew ray tracing error analysis
2011/5/6
Utilizing a ray tracing approach based upon Snell’s optical laws and a 4×4 homogeneous coordinate transformation matrix, this study conducts a systematic analysis of the errors induced in the paths of...
Micro- and nanostructurization of surfaces – techniques and applications
silicon microtips SiC microtips
2011/5/4
In the paper some surface structurization methods are presented. Wet and/or dry etching, and thermal oxidation process have been used to form arrays of gated and non-gated sharp silicon microtips on a...
Band structure of Au monoatomic chains on Si(335) and Si(557) surfaces
nanowires vicinal surface Si(335) Si(557) photoemission
2011/4/27
The electronic band structure of the Si(557) and Si(335) surfaces covered with monoatomic Au chains produced in UHV conditions, is investigated in detail by angle-resolved photoelectron spectroscopy (...
Influence of surface states and bulk traps on non-equilibrium phenomena at GaAs and GaN surfaces
gallium arsenide gallium nitride surface states bulk traps
2011/4/27
The influence of surface state density NSS and bulk non-radiative lifetime t on room temperature photoluminescence quantum efficiency YPL and surface photovoltage (SPV) versus the excitation light int...
Anomalous reflections at photonic crystal surfaces
Anomalous ections photonic crystal surfaces
2015/8/11
We explore the reflection phenomena when a light beam propagating in a photonic crystal is incident upon the interfaces between the crystal and a uniform dielectric. We prove that a generalized ...