搜索结果: 31-45 共查到“Digital Elevation”相关记录90条 . 查询时间(0.109 秒)
An Accuracy Assessment of CARTOSAT-1 Stereo Image Data-Derived Digital Elevation Models: A Case Study of the Drum Mountains, Utah
Cartosat-1 DEM NED ASTER DOQQ Vertical Horizontal Accuracy
2015/11/24
This study evaluates the accuracy of digital elevation models (DEMs) produced from Cartosat-1 data. The Cartosat-1 satellite, launched by the Indian Space Research Organization (ISRO) in May 2005, car...
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...
Investigation of Elevation Bias of The SRTM C-And X-Band Digital Elevation Models
Remote Sensing Vegetation Retrieval Multifrequency DEM/DTM SAR Land Cover
2015/11/20
The paper presents results of a comparative study of the vegetation-caused elevation bias of the space shuttle topographic mission data product, both C- and X-band (SRTM.C/X). The SRTM.C/X bands data ...
A COMPARISON OF GEOSTATISTICS AND FUZZY APPLICATION FOR DIGITAL ELEVATION MODEL
Geodesy Geostatistical analysis DEM Kriging Fuzzy Logic
2015/9/28
This paper is continuation work of a research started in 2005. In the previous research, variety of fuzzy digital elevation models was constructed and the best fit model was selected in order to prese...
Digital elevation models for landslide evolution monitoring: application on two areas located in the Reno River Valley (Italy)
Digital Elevation Model landslide GPS digital photogrammetry laser scanning
2015/9/15
GPS, digital photogrammetry and laser scanning techniques have been applied and compared in the frame of the studies of two complex landslides located in the Emilia-Romagna Region (Northern Italy). Th...
DIGITAL ELEVATION MODEL FROM NON-METRIC CAMERA IN UAS COMPARED WITH LIDAR TECHNOLOGY
Surveying UAS LIDAR DEM/DTM Accuracy
2015/9/10
Digital Elevation Model (DEM) data as a representation of surface topography is highly demanded for use in spatial analysis and modelling. Aimed to that issue many methods of acquisition data and proc...
generation and validation of digital elevation models based on satellite images
Satellite Imagery SRTM DEM
2015/9/1
Digital elevation models (DEMs) are available free of charge for most areas of the world. For example the C-band height model of the Shuttle Radar Topography Mission (SRTM) has with a standard deviati...
AUTOMATIC BUILDING RECONSTRUCTION FROM A DIGITAL ELEVATION MODEL AND CADASTRAL DATA:AN OPERATIONAL APPROACH
Digital Elevation Model Cadastral Maps RANSAC Plane Extraction Building Polyhedral Surface ThreeDimensional Modeling
2015/8/31
In this paper, we tackle the problem of automatic building reconstruction using digital elevation model and cadastral data. We aim at massive production of 3D urban models and present thus an algorith...
MISMATCHING OF DIGITAL ELEVATION MODEL GENERATED FROM SATELLITE DATA IN OVERLAP AREA
DEM ASTER mismatching
2015/8/28
In recent years, collection and processing techniques for creating digital elevation models have advanced rapidly, allowing
terrain to be represented with greater detail and accuracy. Accordingly, th...
AUTOMATIC BUILDING RECONSTRUCTION FROM A DIGITAL ELEVATION MODEL AND CADASTRAL DATA:AN OPERATIONAL APPROACH
Digital Elevation Model Cadastral Maps RANSAC Plane Extraction Building Polyhedral Surface ThreeDimensional Modeling
2015/8/28
In this paper, we tackle the problem of automatic building reconstruction using digital elevation model and cadastral data. We aim at massive production of 3D urban models and present thus an algorith...
Practical use of SRTM digital elevation dataset in the urban-watershed modeling
SRTM-DEM Watershed modeling Hydrological model HEC-GeoHMS
2015/8/14
The advent of satellite-based elevation dataset acquired by Shuttle Radar Topography Mission (SRTM) made new and novel techniques possible to model hydrological process in midsize to large scale water...
Improving overland flow routing by incorporating ancillary road data into Digital Elevation Models
Watershed Delineation Road Geographic Information System GIS Flow Direction Digital Elevation Model DEM Hydrological Modeling
2015/8/6
Roads, ditches, and culverts influence hydrological and geomorphological processes significantly. However, most hydrological models continue to rely solely on regional digital elevation models (DEMs) ...
AUTOMATIC EXTRACTION OF ALUVIAL FANS FROM ASTER L1 SATELLITE DATA AND A DIGITAL ELEVATION MODEL USING OBJECT-ORIENTED IMAGE ANALYSIS
Remote Sensing Interpretation Geomorphology Knowledge base
2015/7/30
There is a need to automate terrain feature mapping so that to make the process more objective and less time consuming by using
proper feature extraction techniques. The objective of this study was ...
Hydrologic analysis of a flood based on a new Digital Elevation Model
Hydrologic analysis DEM GIS HEC-HMS Flood Natural disaster
2015/7/27
These The present study aims to simulate the hydrologic processes of a flood, based on a new, highly accurate Digital Elevation Model (DEM). The DEM is provided by the Ministry of Land, Infrastructure...