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A COMPARATIVE STUDY OF LAND SURFACE TEMPERATURE WITH DIFFERENT INDICES ON HETEROGENEOUS LAND COVER USING LANDSAT 8 DATA
LST Landsat 8 NDBI NDSI NDVI NDWI Land Cover
2018/11/19
The temperature rise in urban areas has become a major environmental concern. Hence, the study of Land surface temperature (LST) in urban areas is important to understand the behaviour of different la...
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 ...
HIGH RESOLUTION DATA FROM LASER SCANNING AND DIGITAL PHOTOGRAMMETRY TERRESTRIAL METHODOLOGIES. TEST SITE: AN ARCHITECTURAL SURFACE
Laser scanning digital photogrammetry 3D models co-registration comparison accuracy
2016/2/29
Terrestrial methodologies, as high resolution laser scanning and digital photogrammetry, are used in many applications in the field
of architectural and cultural heritage surveys: they are character...
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-...
EXTRACTING 3D FREE-FORM SURFACE BOUNDARIES OF MAN-MADE OBJECTS FROM MULTIPLE CALIBRATED IMAGES: A ROBUST, ACCURATE AND HIGH RESOLVING POWER EDGEL MATCHING AND CHAINING APPROACH
Photogrammetry 3D Reconstruction
2015/5/18
This paper describes a purely geometrical approach for matching and chaining edgels, i.e. contours points with their tangent direction,
to reconstruct in a general way 3D rectilinear or curved surfac...
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...
ANALYSIS OF TWO TRIANGLE-BASED MULTI-SURFACE REGISTRATION ALGORITHMS OF IRREGULAR POINT CLOUDS
LiDAR Surface Registration Iterative Closest Patch (ICPatch) Iterative Closest Projected Point (ICPP)
2012/9/3
The registration of multiple surface point clouds into a common reference frame is a well addressed topic, and the Iterative Closest Point (ICP) is – perhaps – the most used method when registering la...
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...