搜索结果: 1-15 共查到“摄影测量与遥感技术 Digital Elevation”相关记录44条 . 查询时间(0.078 秒)
VERTICAL ACCURACY COMPARISON OF DIGITAL ELEVATION MODEL FROM LIDAR AND MULTITEMPORAL SATELLITE IMAGERY
Vertical Accuracy LiDAR DEM Multitemporal Stereo Satellite Imagery DEM
2017/7/13
Digital elevation model serves to illustrate the appearance of the earth's surface. DEM can be produced from a wide variety of data sources including from radar data, LiDAR data, and stereo satellite ...
VEGETATION COVER MAPPING BASED ON REMOTE SENSING AND DIGITAL ELEVATION MODEL DATA
Geographic Information System (GIS) Remote Sensing (RS) Digital Elevation Model (DEM) Vegetation Mapping
2016/11/30
An algorithm of forest cover mapping based on combined GIS-based analysis of multi-band satellite imagery, digital elevation model, and ground truth data was developed. Using the classification princi...
DETERMINING THE SUITABILITY OF DIFFERENT DIGITAL ELEVATION MODELS AND SATELLITE IMAGES FOR FANCY MAPS. AN EXAMPLE OF CYPRUS
Fancy map Image DEM Relief shading hillshading image merge color composite
2016/11/8
The article describes the possibility of developing an overall map of the selected area on the basis of publicly available data. Such a map would take the form designed by the author with the colors t...
VALIDATION OF THE ASTER GLOBAL DIGITAL ELEVATION MODEL VERSION 3 OVER THE CONTERMINOUS UNITED STATES
Accuracy DEM/DTM Comparison Geodesy Global-Environmental-Databases Land Cover Mapping Satellite
2016/11/8
The ASTER Global Digital Elevation Model Version 3 (GDEM v3) was evaluated over the conterminous United States in a manner similar to the validation conducted for the original GDEM Version 1 (v1) in 2...
PREPARATION OF THE DIGITAL ELEVATION MODEL FOR ORTHOPHOTO CR PRODUCTION
Airborne Laser Scanning Digital Elevation Model Orthorectification Surface Modelling True Orthophoto
2016/7/27
The Orthophoto CR is produced in co-operation with the Land Survey Office and the Military Geographical and Hydrometeorological Office. The product serves to ensure a defence of the state, integrated ...
THE NEED OF NESTED GRIDS FOR AERIAL AND SATELLITE IMAGES AND DIGITAL ELEVATION MODELS
Orthoimages DEM Geographic Grid
2016/7/8
Usual workflows for production, archiving, dissemination and use of Earth observation images (both aerial and from remote sensing satellites) pose big interoperability problems, as for example: non-al...
EVALUATION DIGITAL ELEVATION MODEL GENERATED BY SYNTHETIC APERTURE RADAR DATA
Interferometry RADAR Digital Elevation Model European Space Agency Sentinel1-A Interferometry Wide Swath Synthetic Aperture Radar SAR DEM
2016/7/4
Digital elevation model, showing the physical and topographical situation of the earth, is defined a tree-dimensional digital model obtained from the elevation of the surface by using of selected an a...
Triangulated Digital Elevation Model: definition of a new representation
DEM structure DEM generation TIN regular network DEM quality criterion
2016/5/23
In this paper we discuss about the need of a new DEM representation for simulation in GIS. This leads us to analyse through quality criteria the current DEM structures. Then we propose a new DEM repre...
Comparison of Digital Elevation Models Generated from SPOT-5 HRS Stereo Data and CARTOSAT-1 Stereo Data
Cartosat-1 SPOT-5 rigorous sensor model RPC stereo DEM
2016/1/25
SPOT-5 and Cartosat-1 are mapping satellites with high resolution and along-track stereo capability. This paper describes the work
carried out towards the qualitative and quantitative comparison of t...
Fusion of lidar and photogrammetric generated Digital Elevation Models
Multisource data Fusion Integration Quality Control Digital Elevation Model
2016/1/25
The fusion of digital surfaces, their optimal combination into a new single dataset, is a crucial topic in the geomatic sciences. Nowadays,
sensors and processing techniques provide for the same site...
Refinement of Urban Digital Elevation Models from Very High Resolution Stereo Satellite Images
VHR satellite data stereo images digital surface models optimization dense stereo matching occlusion mask blunder elimination
2016/1/25
Digital elevation models (DEM) of high resolution and high quality are required for many applications like urban modeling, readiness for
catastrophes or disaster assessment. A good source for the de...
A New Data Structure for Refined Digital Elevation Models
GIS Modeling Visualization Data Structure DEM/DTM
2015/12/16
A new DEM called Hybrid Mesh DEM (HM-DEM) with a hybrid mesh is put forth to improve the DEM’s capacity of representation of different kinds of micro-terrains and complex landscapes. The conceptual mo...
THE ASSESSMENT OF ORTHOPHOTO QUALITY WITH RESPECT TO THE STRUCTURE OF DIGITAL ELEVATION MODEL
Orthophoto height displacement orthophoto elongation Orthophoto precision Orthophoto quality DEM structure
2016/1/15
Orthophoto is an image which is being corrected geometrically so each object has to be situated on the corrected place consequently. Choosing the best DEM structure with respect to the area topographi...
PREDICTION OF WIND SPEEDS BASED ON DIGITAL ELEVATION MODELS USING BOOSTED REGRESSION TREES
Digital Elevation Model Wind Speed Non-Parametric Regression
2016/1/15
In this paper a new approach is presented to predict maximum wind speeds using Gradient Boosted Regression Trees (GBRT). GBRT are a non-parametric regression technique used in various applications, su...
DESIGN A FILTER TO DETECT AND REMOVE VEGETATION FROM ULTRA-CAM-X AERIAL IMAGES’ POINT CLOUD TO PRODUCE AUTOMATICALLY DIGITAL ELEVATION MODEL
Ultra-cam-x point clouds vegetation detection filtering DEM generation
2016/1/15
Digital elevation model is one of the most important spatial information for displaying bare earth. Because of existing objects on the ground, manual editing is unavoidable. Aerial images’ point cloud...