搜索结果: 16-30 共查到“测绘科学技术 Airborne Laser Scanning”相关记录44条 . 查询时间(0.224 秒)
On The Quality Checking of the Airborne Laser Scanning Based Nation Wide Elevation Model in Finland
Airborne laser scanning Optimization Aerial survey Accuracy Quality control
2015/11/20
Nationwide airborne laser scanning (ALS) has been carried out in European countries such as the Netherlands and Switzerland; in Germany large parts of the country has been scanned and the work is goin...
WAVEFORM ANALYSIS TECHNIQUES IN AIRBORNE LASER SCANNING
LIDAR Waveform Analysis Pulse detection Decomposition Deconvolution Point cloud
2015/11/10
Small-footprint airborne laser scanners with waveform-digitising capabilities are becoming increasingly available. Waveformdigitising is particularly advantageous when the backscattered echo waveform ...
GEOMETRICAL ASPECTS OF AIRBORNE LASER SCANNING AND TERRESTRIAL LASER SCANNING
Airborne Laser Scanning Terrestrial Laser Scanning LiDAR Geometry Orientation Registration Segmentation Calibration Digital Terrain Model DTM
2015/11/10
This paper reviews the current state of laser scanning from airborne and terrestrial platforms for geometric reconstruction of object shape and size. The current performance figures of sensor systems ...
RAY TRACING FOR MODELING OF SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
RAY TRACING FOR MODELING SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
2015/11/10
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical canopy variables, such as tree height and vegetation density. However, up to now most approaches...
AUTOMATIC GLACIER SURFACE ANALYSIS FROM AIRBORNE LASER SCANNING
Airborne Laser Scanning DEM Glacier Crevasses Mathematical Morphology
2015/11/10
Glaciers are interesting phenomena to scientists, mountaineers and tourists. Glaciers have a great impact on the local economy, power generation and water supply. Furthermore, the behaviour of glacier...
GLACIER SURFACE SEGMENTATION USING AIRBORNE LASER SCANNING POINT CLOUD AND INTENSITY DATA
Airborne Laser scanning Point cloud Segmentation Classification Intensity Glaciology
2015/11/10
As glaciers are good indicators for the regional climate, most of them presently undergo dramatic changes due to climate change. Remote sensing techniques have been widely used to identify glacier sur...
DETECTION AND RECONSTRUCTION OF FREE FORM SURFACES FROM AIRBORNE LASER SCANNING DATA
LiDAR City modeling Building reconstruction Free Form Curved Surfaces
2015/11/10
Building reconstruction from LiDAR data offers promising prospects for rapid generation of large-scale 3D models in an autonomous manner. Such reconstruction requires knowledge on a variety of paramet...
SIMULATING SAMPLING EFFICIENCY IN AIRBORNE LASER SCANNING BASED FOREST INVENTORY
Airborne laser scanner Simulator Forest inventory
2015/11/10
A simple simulator was developed to test whether airborne laser scanning can be used as a strip sampling tool for forest inventory purposes. The simulator is based on the existing two stages,grid base...
MODELING OF SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS USING RAY-TRACING AND L-SYSTEMS
Physical modeling remote sensing
2015/9/8
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical
canopy variables, such as tree height and vegetation density. However, up to now most approache...
OBJECT-BASED ANALYSIS OF AIRBORNE LASER SCANNING DATA FOR NATURAL HAZARD PURPOSES USING OPEN SOURCE COMPONENTS
Natural Hazard Management Airborne Laser Scanning Open Source GIS Segmentation Classification
2015/8/19
Geoinformation is an important basis for planning strategies, natural hazard modelling, process detection, and risk analysis. Airborne Laser Scanning is an operational working method for area wide dat...
ASSESSING MOUNTAIN FOREST STRUCTURE USING AIRBORNE LASER SCANNING AND LANDSCAPE METRICS
protection forest LiDAR forest structure assessment landscape ecology indices segmentation
2015/8/19
Forest structure is a key element to determine the capacity of mountain forests to protect people and their assets against natural hazards. Airborne laser scanning offers new ways for describing fores...
Estimation on Tree Cover Percentage Using Terra/Aster Data with Airborne Laser Scanning Data
Forest Canopy Cover
2015/7/8
It is expected that the remote sensing techniques will play a major role in establishing the carbon sink assessment system to meet the
need of the Kyoto Protocol. Tree cover percentage is one of the ...
Investigations of Airborne Laser Scanning Signal Intensity on Glacial Surfaces - Utilizing Comprehensive Laser Geometry Modeling and Orthophoto Surface Modeling (A Case Study: Svartisheibreen, Norway)
Laser Scanning Glaciology Geometry LIDAR Snow Ice GIS Modelling Infrared Intensity
2015/5/26
A comprehensive Geographic Information System (GIS) was developed to determine how the laser intensity of an Airborne Laser
Scanning (ALS) system was affected by 1) geometry and 2) surface type. The...
Interactive Relative Orientation Between Terrestrial Images and Airborne Laser Scanning Data
Interactive Relative Orientation Airborne Laser Scanning Terrestrial Panoramic Images
2015/5/26
This paper describes direct interactive relative orientation method between terrestrial digital images and laser scanner data.
Traditionally, the orientation between images and 3D data requires inte...
Airborne Laser Scanning Technology and its Potential for Applications in Glaciology
Glaciology Laser Scanning Monitoring Change Detection DEM DTM
2015/5/26
Glaciers are important sources for water supply and valuable indicators for climate change processes. In several countries glaciers have
already been monitored for many years by public authorities o...