搜索结果: 1-15 共查到“测绘科学技术 DEMs”相关记录35条 . 查询时间(0.225 秒)
CROSS VALIDATION ON THE EQUALITY OF UAV-BASED AND CONTOUR-BASED DEMS
UAV Photogrammetry Digital Elevation Model Topographic surveying Ground Control Points Accuracy analysis
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2018/5/15
Unmanned Aerial Vehicles (UAV) have been widely used for Digital Elevation Model (DEM) generation in geographic applications. This paper proposes a novel framework of generating DEM from UAV images. I...
UNCERTAINTY IN LANDSLIDES VOLUME ESTIMATION USING DEMs GENERATED BY AIRBORNE LASER SCANNER AND PHOTOGRAMMETRY DATA
ALS Digital Elevation Model DoD Volume estimation landslide airborne sensor
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2018/4/18
The purpose of this paper is to identify an approach able to estimate the uncertainty related to the measure of terrain volume generated after a landslide. The survey of the area interested of landsli...
UNCERTAINTY IN LANDSLIDES VOLUME ESTIMATION USING DEMs GENERATED BY AIRBORNE LASER SCANNER AND PHOTOGRAMMETRY DATA
ALS Digital Elevation Model DoD Volume estimation landslide airborne sensor
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2018/5/8
The purpose of this paper is to identify an approach able to estimate the uncertainty related to the measure of terrain volume generated after a landslide. The survey of the area interested of landsli...
UNCERTAINTY ASSESSMENT AND WEIGHT MAP GENERATION FOR EFFICIENT FUSION OF TANDEM-X AND CARTOSAT-1 DEMS
Accuracy assessment Data fusion Predicted weight map Artificial Neural Network TanDEM-X DEM Cartosat-1 DEM
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2017/7/13
Recently, with InSAR data provided by the German TanDEM-X mission, a new global, high-resolution Digital Elevation Model (DEM) has been produced by the German Aerospace Center (DLR) with unprecedented...
FUSION OF LASER ALTIMETRY DATA WITH DEMS DERIVED FROM STEREO IMAGING SYSTEMS
Ice Sheet Surface Elevation Changes Fusion System Mass Balance Changes
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2016/11/30
During the last two decades surface elevation data have been gathered over the Greenland Ice Sheet (GrIS) from a variety of different sensors including spaceborne and airborne laser altimetry, such as...
GLACIER VOLUME CHANGE ESTIMATION USING TIME SERIES OF IMPROVED ASTER DEMS
ASTER Jitter DEM generation RPC Glacier
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2016/11/30
Volume change data is critical to the understanding of glacier response to climate change. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) system embarked on the Terra (EOS ...
COMPARISON AND CO-REGISTRATION OF DEMS GENERATED FROM HiRISE AND CTX IMAGES
Mars DEM HiRISE CTX Photogrammetry
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2016/11/8
Images from two sensors, the High-Resolution Imaging Science Experiment (HiRISE) and the Context Camera (CTX), both on-board the Mars Reconnaissance Orbiter (MRO), were used to generate high-quality D...
VERTICAL ACCURACY ASSESSMENT OF 30-M RESOLUTION ALOS, ASTER, AND SRTM GLOBAL DEMS OVER NORTHEASTERN MINDANAO, PHILIPPINES
AW3D30 ASTER GDEM2 SRTM-30m Digital Elevation Model Accuracy Assessment Philippines
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2016/11/8
The ALOS World 3D – 30 m (AW3D30), ASTER Global DEM Version 2 (GDEM2), and SRTM-30 m are Digital Elevation Models (DEMs) that have been made available to the general public free of charge....
ICESAT VALIDATION OF TANDEM-X I-DEMS OVER THE UK
Global DEM validation TanDEM-X intermediate DEM ICESat elevations
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2016/11/8
From the latest TanDEM-X mission (bistatic X-Band interferometric SAR), globally consistent Digital Elevation Model (DEM) will be available from 2017, but their accuracy has not yet been fully charact...
Radar-derived DEMs for urban areas
Radar-derived DEMs urban areas
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2016/5/20
The role for Digital Elevation Models (DEMs) has been expanding rapidly in recent years. Applications are increasing and encompass industries as diverse as telecommunications, forestry, municipal engi...
Analysis of software requirements to represent urban areas with DEMs and 3D visualization of buildings and structures
DEM (Digital Elevation Models) Visualization of 3D DSM (Digital Surface Modeling)
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2016/5/20
In order to have an integrated view of an urban area, it is necessary to show the terrain and the structures on it. There are many established computer programs that can do efficiently either task ind...
Minimising Systematic Errors in DEMs Caused by an Inaccurate Lens Model
Close Range Photogrammetry Digital Camera Digital Photogrammetry
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2015/12/14
The use of consumer grade digital cameras for spatial measurement has rapidly increased over the past decade and is accepted in
many industrial applications but also in diverse fields ranging from me...
A Hybrid Method for Deriving DTMs from Urban DEMs
DEM/DTM urban aboveground correlation segmentation classification triangulation Random Markov Field
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2015/12/8
This study focuses on the automatic extraction of DTMs from urban DEMs produced by image correlation. Many methods have been proposed in the literature yet processing correlation DEMs in any kind of a...
DEM (Digital Elevation Model) Production and Accuracy Modeling of DEMs from 1:35.000 Scale Aerial Photographs
Photogrammetry Mapping Automation DEM/DTM Accuracy
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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...
COMPARISON OF SPOT,SRTM AND ASTER DEMs
DEM SPOT ASTER SRTM Accuracy
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2015/9/17
Digital Elevation Models (DEMs) represent the terrain elevation in discrete form in three-dimensional space. This is the simplest form of 3D-terrain representation and the most common. The accuracy an...