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EXTRACTION OF BUILDING ROOF EDGES FROM LIDAR DATA TO OPTIMIZE THE DIGITAL SURFACE MODEL FOR TRUE ORTHOPHOTO GENERATION
LiDAR Aerial photos Edge Detection DSM True Orthophoto
2018/3/30
Various kinds of urban applications require true orthophotos. True orthophoto generation requires a DSM (Digital Surface Model) to project the photo orthogonally and minimize geometric distortion due ...
Surface Deformation Investigated With SBAS-DINSAR Approach Based on Prior Knowledge
Satellite remote sensing SAR Interferometric SAR (InSAR) Deformation analysis Hazard mapping Surface deformations
2015/11/20
Although Differential Synthetic Aperture Radar Interferometry (DInSAR) has been successfully used for deformation mapping, it is easily suffered from both spatial and temporal decorrelation which limi...
On the correspondence between surface UV observations and TOMS determinations of surface UV: a potential method for quality evaluating world surface UV observations
UV ultraviolet erythermal surface satellite TOMS
2015/9/16
A comparison of erythemally weighted surface UV irradiance observations with similar NASA TOMS surface UV
determinations is described. Comparisons are made for two observation periods: the Robertson-...
Inversion of Marine Radar Imagery to Surface Realizations and Dual-Polarization Analysis
radar FOPAIR ocean inversion sea spikes
2014/12/8
The ocean influences global weather patterns, stores and transports heat, and supports entire ecosystems. An area of interest is the relationship between the observed backscattered power received by a...
New radar images uncover remarkable features below the surface of the moon
New radar images uncover remarkable features belowthe surface of the moon
2014/5/14
New images of Earth’s Moon reveal more than can be seen with the naked eye, thanks to the combined efforts of the two largest radio telescopes of their kind -- the National Radio Astronomy Observatory...
An Improved Multi-Temporal Insar Method for Increasing Spatial Resolution of Surface Deformation Measurements
Multi-temporal InSAR hierarchical analysis spatial resolution Pearson correlation coefficient deformation extraction
2013/4/22
The multi-temporal interferometric synthetic aperture radar (InSAR) technology has proven very useful in extracting surface deformation with time series of SAR images over a study area. To increase sp...
SURFACE COMPLEXITY COMPONENT OF LIDAR POINT CLOUD ERROR CHARACTERIZATION
Airborne LiDAR DEM Point cloud Surface complexity Accuracy/Error Assessment
2012/7/20
There are several data product characterization methods to describe LiDAR data quality. Typically based on guidelines developed by government or professional societies, these techniques require the st...
Variability of Urban Aerosols over Santiago, Chile: Comparison of Surface PM10 Concentrations and Remote Sensing with Ceilometer and Lidar
Aerosols Lidar Ceilometer PM10 Santiago Chile
2012/2/28
Lidar instruments have proven useful for characterizing the structure and dynamics of aerosol layers. We compare here
the diurnal, seasonal and vertical variability of urban aerosols as described by ...
Multiscale InSAR Time Series (MInTS) analysis of surface deformation
Multiscale InSAR Time Series analysis surface deformation
2011/7/29
We present a new approach to extracting spatially and temporally continuous ground deformation fields from interferometric synthetic aperture radar (InSAR) data. We focus on unwrapped interferograms f...
Propagation modeling and path loss prediction tools for high frequency surface wave radars
Groundwaves Surface waves High Frequency High Frequency Surface Wave Radar Mixed-Path Propagation Millington Effect Path Loss Parabolic Equation
2010/5/31
Propagation modeling and simulation approaches for the use of High Frequency Surface Wave Radar (HFSWR) are discussed. HFSWR uses vertically polarized surface waves along multi-mixed paths in the lowe...
Radar cross-section (RCS) analysis of high frequency surface wave radar targets
Electromagnetic scattering High frequency surface wave radar HFSWR Surveillance Radar cross-section RCS RCS prediction RCS reduction
2010/5/31
Realistic high frequency surface wave radar (HFSWR) targets are investigated numerically in terms of electromagnetic wave -- target interactions. Radar cross sections (RCS) of these targets are simula...
NORMALIZATION OF LIDAR INTENSITY DATA BASED ON RANGE AND SURFACE INCIDENCE ANGLE
Full-waveform intensity normalization Lambertian law Phong model diffuse specular reflectance
2009/2/19
The analysis of airborne laser scanner data to extract surface features is of great interest in photogrammetric research. Especially for
applications based on airborne measurements, where the intens...
期刊信息
篇名
Image Simulation of High -Reaolution Radar for Fully Polarrimetric Scattering from Heterpgeneous Canopy Surface
语种
英文
撰写或编译
作者
Y.Q.Jin,,W.Zhang
第一作者单位
刊物名称
Chinese Journal of Electronics
页面
20...
Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure and data downsampling
correlated noise InSAR Little Skull Mountain
2004/9/11
Repeat-pass Interferometric Synthetic Aperture Radar (InSAR) provides spatially dense maps of
surface deformation with potentially tens of millions of data points. Here we estimate the actual covaria...
A ROBUST METHOD USED WITH ORTHOGONAL POLYNOMIALS AND ROAD NETWORK FOR AUTOMATIC TERRAIN SURFACE EXTRACTION FROM LIDAR DATA IN URBAN AREAS
LIDAR DTM ALGORITHMS EXTRACTION
2004/6/1
The data provided by LIDAR systems are presented in a dense, accurate three-dimensional form without point classification, such as
buildings, trees roads, terrain, etc. The principal objective of th...