搜索结果: 1-15 共查到“测绘科学技术 elevation model”相关记录36条 . 查询时间(0.091 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...
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...
NASADEM GLOBAL ELEVATION MODEL: METHODS AND PROGRESS
Elevation Topography DEM NASADEM SRTM ASTER GDEM ICESat
2016/11/8
NASADEM is a near-global elevation model that is being produced primarily by completely reprocessing the Shuttle Radar Topography Mission (SRTM) radar data and then merging it with refined ASTER GDEM ...
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 ...
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...
Accuracy of Digital Elevation Model according to spatial resolution
Accuracy Digital Elevation Model according spatial resolution
2016/5/23
Digital Elevation Model (DEM) is indispensable for many analyses such as topographic feature extraction, runoff analysis, slope stability analysis and so on. Beforehand such analyses, accuracy of DEM ...
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...
Development & assessment of the global land one-km base elevation Digital Elevation Model (GLOBE)
Environmental variables Global Database Topography
2016/5/20
The Global Land One-kilometer Base Elevation (GLOBE) digital elevation model is the most thoroughly designed, reviewed, and documented global digital elevation dataset to date. GLOBE was developed by ...
An Enhanced Global Elevation Model Generalized from Multiple High Resolution Source Datasets,
Elevation Digital Elevation Model Topography Global Generalization
2015/12/18
Global digital elevation models are routinely used in a variety of earth science applications. GTOPO30, a widely used global elevation model produced by the U.S. Geological Survey, was produced in the...
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...
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...
Digital Elevation Model Database W42 - A Scalable System for Spatial Data
DEM/DTM Mapping Mosaic Software System Spatial Databases
2015/11/24
Digital Elevation Models (DEMs) provide elementary information for various application fields. From a global point of view, there are many different sources to furnish height information of the Earth'...
Assessment of ALOS Prism Digital Elevation Model Extraction over Japan
Photogrammetry Remote Sensing Cartography Correlation Production Digital
2015/11/23
This article presents technical work done with DAICHI ALOS PRISM data in order to assess the feasibility and quality of Digital Elevation Model extracted from ALOS PRISM triplet of images. Thanks to i...
DEM (Digital Elevation Model) Production and Accuracy Modeling of DEMs from 1:35.000 Scale Aerial Photographs
Photogrammetry Mapping Automation DEM/DTM Accuracy
2015/11/23
Aerial photographs and satellite imagery have been evaluated manually by the operators for a long time for the extraction of the contour line and DEM data. Computer technology and digital image proces...