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4D-SFM PHOTOGRAMMETRY FOR MONITORING SEDIMENT DYNAMICS IN A DEBRIS-FLOW CATCHMENT: SOFTWARE TESTING AND RESULTS COMPARISON
4D-SfM Photogrammetry Sediment dynamics monitoring Software comparison Debris flow hazard
2018/6/4
In recent years, the combination of Structure-from-Motion (SfM) algorithms and UAV-based aerial images has revolutionised 3D topographic surveys for natural environment monitoring, offering low-cost, ...
CALIBRATING AND TESTING NEW ULTRACAM SENSORS
Digital photogrammetry digital workflow digital aerial camera aerial sensor
2017/7/12
This contribution reports on the latest design of new UltraCam sensors. We present results from calibration and verification flights of the UltraCam Condor, which is based on a specific design and off...
RPAS ACCURACY TESTING FOR USING IT IN THE CADASTRE OF REAL ESTATES OF THE CZECH REPUBLIC
RPAS cadastre of real estates GNSS geodetic measurement photogrammetry
2016/7/5
In the last few years, interest in the collection of data using remotely piloted aircraft systems (RPAS) has sharply risen. RPAS technology has a very wide area of use; one of its main advantages is i...
Evaluation and testing of the Zeiss SCAI Roll film scanner
Roll Film Scanner Film Digitisation Scanner Quality Analysis
2016/5/20
In the summer of 1996 the Swiss Federal Office of Topography (L+ T) performed in cooperation with ETH benchmark tests at different
companies in order to evaluate three photogrammetric film scanne...
MAPPING GROUND DEFORMATION BY RADAR INTERFEROMETRY BASED ON PERMANENT-SCATTERER NETWORK:ALGORITHM AND TESTING RESULTS
Ground Deformation Radar Interferometry PS Networking Atmospheric Signal Empirical Mode Decomposition
2015/12/30
The full operational capability of synthetic aperture radar (SAR) interferometry in deformation monitoring has not been achieved yet due to the negative influences of spatio-temporal decorrelation and...
Metric Accurac Testing with Mobile Phone Cameras
Mobile phone cameras Self-calibration Accuracy potential
2015/12/16
This paper examines the potential of mobile phones to be used as a front-end sensor for photogrammetric procedures and
applications. For this purpose we are calibrating two mobile phones (Sony Ericss...
LIDAR Filtering: Testing of an Automatic Procedure Developed in the Free Open Source GIS GRASS
Aerial Survey Feature Extraction Filtering LiDAR Spatial Planning
2015/12/16
The goal of this study was to analyze the filtering performance of LiDAR data of an algorithm implemented by our group of research. The algorithm is completely automatic and needs only the raw data cl...
INTRODUCING NOVEL GENERATION OF HIGH ACCURACY CAMERA OPTICAL-TESTING AND CALIBRATION TEST-STANDS FEASIBLE FOR SERIES PRODUCTION OF CAMERAS
Fisheye Camera Calibration Single-Shot Camera Calibration Calibration Test-Stands Automated Calibration Test-Stand Design Camera Alignment-Testing Camera Optical-Testing
2016/1/15
The recent advances in the field of computer-vision have opened the doors of many opportunities for taking advantage of these techniques and technologies in many fields and applications. Having a high...
Spatial Data Positional Accuracy Analyzing and Testing
DLG GPS Quality Control Accuracy Testing Error Distribution
2015/10/12
In this article 1:50000 DLG data is used as an example to analyze and test spatial data positional accuracy.At first 1:50000 DLG data
acquisition technical process and data content is simply introdu...
THE DESIGN AND TESTING OF A LIDAR PLATFORM FOR A UAV FOR HERITAGE MAPPING
Architectural relics Laser scanning LiDAR Vibration interference VTOL aircraft
2015/9/10
In the discovering, identifying and mapping work of heritage objects in forest or desert areas, LiDAR ensures work efficiency and can provide the most complete and accurate 3D data. In the field of he...
radiometric testing and calibration of dmc
Aerial Digital Cameras Radiometry Quality Targets BRDF calibration
2015/9/1
Advanced radiometric properties of new digital photogrammetric sensors will open new applications for photogrammetric sensors.In&#...
A simulation study for the geometric accuracy testing of airborne linear array ccd cameras
geometric accuracy testing airborne linear array ccd cameras
2015/9/1
Since their first introduction, linear array CCD cameras play an important role in the airborne optical digital sensors market, together with matrix array CCD sensors. The methods and algor ithms to p...
in-flight testing of resolving power and mtf of dmc
Aerial Digital Camera Calibration field CCD Photogrammetry Quality Resolution
2015/9/1
The present article reports the results of an extensive empirical evaluation of spatial resolution of a digital large format Intergraph DMC sensor. The parameters of the study were flight direction, g...
Airborne Testing of The Dss: Test Results and Analysis
Airborne Mapping Aerial Triangulation Direct Georeferencing
2015/7/15
In this paper, the Digital Sensor System (DSS) test results and analysis are presented. The DSS is a fully integrated fully digital
ruggedized system for airborne image acquisition, georeferencing, a...
TESTING AND VERIFICATION OF THE ACCURACY OF 3D LASER SCANNER DATA
TESTING VERIFICATION 3D LASER SCANNER DATA
2015/3/13
TESTING AND VERIFICATION OF THE ACCURACY OF 3D LASER SCANNER DATA.