搜索结果: 1-14 共查到“地理信息系统 accuracy”相关记录14条 . 查询时间(0.198 秒)
AN OPEN SOURCE APPROACH FOR THE INTRINSIC ASSESSMENT OF THE TEMPORAL ACCURACY, UP-TO-DATENESS AND LINEAGE OF OPENSTREETMAP
Data Quality Lineage Open Source OpenStreetMap Temporal Accuracy Thematic Accuracy Up-to-dateness
2018/11/8
OpenStreetMap (OSM) is the most popular crowdsourced geographic information project. The main factor that still limits the practical use of OSM is the lack of quality assurance. OSM quality assessment...
AN AUTOMATED GRASS-BASED PROCEDURE TO ASSESS THE GEOMETRICAL ACCURACY OF THE OPENSTREETMAP PARIS ROAD NETWORK
Accuracy FOSS4G GRASS Open data OpenStreetMap Road network Volunteered Geographic Information
2016/11/24
OpenStreetMap (OSM) is the largest spatial database of the world. One of the most frequently occurring geospatial elements within this database is the road network, whose quality is crucial for applic...
MODEL ACCURACY COMPARISON FOR HIGH RESOLUTION INSAR COHERENCE STATISTICS OVER URBAN AREAS
Interferometric Synthetic Aperture Radar (InSAR) Coherence Statistics Model Accuracy Urban Areas
2016/11/24
The interferometric coherence map derived from the cross-correlation of two complex registered synthetic aperture radar (SAR) images is the reflection of imaged targets. In many applications, it can a...
OBJECT FATE ANALYSIS–A VIRTUAL OVERLAY METHOD FOR THE CATEGORISATION OF OBJECT TRANSITION AND OBJECT-BASED ACCURACY ASSESSMENT
GIS interference object-based change detection object loyalty remote sensing spatial relations
2015/8/19
Land use often changes considerably due to shifts in political and societal systems. The border zone between Austria and Hungary (the former Iron Curtain zone) is an outstanding example for these soci...
Accuracy of Measurements Made with a Cyrax 2500 Laser Scanner Against Surfaces of Known Colour
Laser scanning point cloud accuracy testing
2015/7/9
Several commercial manufacturers produce laser scanning systems capable of measuring the surfaces of objects to precisions of the
order of a few millimetres at ranges of between 2 and 200 meters. Exp...
In this study, the accuracy of a geographical information system is investigated. The mentioned accuracy is not only the geometric
accuracy, but also the thematic accuracy. It is known that the stand...
Introducing an Accuracy Indicator Based on Uncertainty Related Measures
Analysis Accuracy Classification
2015/7/9
Traditionally accuracy assessment of the classification results uses some collected reference data (ground truth). Ground truth
collection is a time-consuming and money-swallowing activity and usuall...
DTM and orthophoto have been generated in IGiK using IKONOS along-track stereo images CARTERRA GEO Pan with B/H ratio
1:1.8 and the accuracy analysis has been performed. Orientation of stereo images ...
COMPARATIVE TESTES OF MATHEMATICAL MODELS FOR ACCURACY POTENTIAL OF POINT MEASUREMENTS IN IKONOS GEO IMAGE
Modelling High resolution Accuracy
2015/6/1
The number of high resolution satellite sensors for mapping applications is growing fast. Successful exploitation of the high accuracy potential
of these systems depends on good mathematical models ...
THE EFFECTS OF GIS ARCHITECTURE, DATA MODELS AND DATA SOURCES ON THE ACCURACY OF DIGITAL MAPS: AN EXAMPLE OF DIGITAL TERRAIN MODEL OF IBADAN REGION
GIS ARCHITECTURE DATA MODELS DATA SOURCES DIGITAL MAPS DIGITAL TERRAIN MODEL IBADAN REGION
2015/3/13
THE EFFECTS OF GIS ARCHITECTURE, DATA MODELS AND DATA SOURCES ON THE ACCURACY OF DIGITAL MAPS: AN EXAMPLE OF DIGITAL TERRAIN MODEL OF IBADAN REGION.
Terrain Analysis and Accuracy Prediction by Means of the Fourier Transformation
Terrain Analysis Accuracy Prediction Means of the Fourier Transformation
2015/1/4
Terrain Analysis and Accuracy Prediction by Means of the Fourier Transformation.
DSM Accuracy Evaluation for the ISPRS Commission I Image Matching Benchmark
3D Stereo Reconstruction DEM/DSM Matching Accuracy Benchmark
2014/12/4
To improve the quality of algorithms for automatic generation of Digital Surface Models (DSM) from optical stereo data in the remote sensing community, the Working Group 4 of Commission I: Geometric a...
Geometric Accuracy Assessment and Correction of Imagery from Chinese Earth Observation Satellites (HJ-1 A/B, CBERS-02C and ZY-3)
Chinese Satellites HJ-1 A/B CBERS-02C ZY-3 Imagery Spatial Data Quality Geometric Accuracy Ground Control Points (GCP) Automation Operational Methodology Accuracy Assessment Image Correction Toutin Model RPC Model
2014/11/28
The Chinese satellites HJ-1 A/B, CBERS-02C and ZY-3 have been recently launched and are considered as the main space platforms on orbit to acquire optical images for monitoring the Earth for various a...
Accuracy Evaluation of 3D Geometry from Low-Attitude UAV collections A case at Zijin Mine
UAV 3D Geometry Opencast Mine Structure from Motion (SfM) Accuracy Evaluation
2014/7/23
This study investigates the usability of low-attitude unmanned aerial vehicle (UAV) acquiring high resolution images for the geometry reconstruction of opencast mine. Image modelling techniques like S...