搜索结果: 1-15 共查到“大地测量学 airborne”相关记录29条 . 查询时间(0.218 秒)
A METHOD OF GENERATING DEM FROM DSM BASED ON AIRBORNE INSAR DATA
InSAR DSM Adaptive Threshold Segmentation DEM, Filtering
2018/5/15
Traditional methods of terrestrial survey to acquire DEM cannot meet the requirement of acquiring large quantities of data in real time, but the DSM can be quickly obtained by using the dual antenna s...
DOES THE DATA RESOLUTION/ORIGIN MATTER? SATELLITE,AIRBORNE AND UAV IMAGERY TO TACKLE PLANT INVASIONS
Detection Invasive species Mapping MSS imagery Object- and pixel-based classification Spectral spatial and temporal resolution
2016/11/24
Invasive plant species represent a serious threat to biodiversity and landscape as well as human health and socio-economy. To successfully fight plant invasions, new methods enabling fast and efficien...
TESTING OF LAND COVER CLASSIFICATION FROM MULTISPECTRAL AIRBORNE LASER SCANNING DATA
multi-wavelength ALS texture analysis classification data fusion laser intensity land cover mapping
2016/11/23
Multispectral Airborne Laser Scanning provides a new opportunity for airborne data collection. It provides high-density topographic surveying and is also a useful tool for land cover mapping. Use of a...
MULTISPECTRAL AIRBORNE LASER SCANNING FOR AUTOMATED MAP UPDATING
Laser scanning Lidar Multispectral Point cloud Mapping Automation Updating Change detection
2016/7/27
During the last 20 years, airborne laser scanning (ALS), often combined with multispectral information from aerial images, has shown its high feasibility for automated mapping processes. Recently, the...
AIRBORNE LINEAR ARRAY IMAGE GEOMETRIC RECTIFICATION METHOD BASED ON UNEQUAL SEGMENTATION
Linear array image Geometric rectification Unequal segmentation Dynamic programming Straight line feature
2016/7/4
As the linear array sensor such as multispectral and hyperspectral sensor has great potential in disaster monitoring and geological survey, the quality of the image geometric rectification should be g...
On the use of multispectral and stereo data from airborne scanning systems for DTM generation and landuse classification
multispectral stereo data airborne scanning systems DTM generation landuse classification
2016/5/20
Airborne pushbroom systems for the direct acquisition of digital imagery enable the simultaneous capture of high quality 3D and multispectral information of a scene. The combination of geometric and r...
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...
ASSESSING EFFECTS OF LASER POINT DENSITY ON BIOPHYSICAL STAND PROPERTIES DERIVED FROM AIRBORNE LASER SCANNER DATA IN MATURE FOREST
Airborne laser scanner Canopy density Canopy height Pulse density
2015/11/10
Canopy height distributions were created from small-footprint airborne laser scanner data for mature coniferous forest in two forest areas in Norway. In total, 82 and 70 georeferenced field sample plo...
SEMI-BLIND SOURCE SEPARATION FOR ESTIMATION OF CLAY CONTENT OVER SEMI-VEGETATED AREAS,FROM VNIR/SWIR HYPERSPECTRAL AIRBORNE DATA
Hyperspectral remote sensing Semi-Blind source separation Non-Negative Matrix Factorization partial least squares regression clay content semi-vegetated pixels
2015/9/21
The applicability of Visible, Near-Infrared and Short Wave Infrared (VNIR/SWIR) hyperspectral imagery for soil property mapping decreases when surfaces are partially covered by vegetation. The objecti...
AIRBORNE HYPERSPECTRAL REMOTE SENSING FOR IDENTIFICATION GRASSLAND VEGETATION
Vegetation Mapping Hyperspectral Image Classification Maximum Likelihood Classifier Random Forest Support Vector Machine Open Landscape
2015/9/21
In our study we classified grassland vegetation types of an alkali landscape (Eastern Hungary), using different image classification methods for hyperspectral data. Our aim was to test the applicabili...
airborne digital imagers: an overview & analysis.
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...
Derivation of Roof Types by Cluster Analysis in Parameter Spaces of Airborne Laser Scanner Point Clouds
Airborne laserscanning clustering building reconstruction
2015/5/26
Derivation of Roof Types by Cluster Analysis in Parameter Spaces of Airborne Laser Scanner Point Clouds.