A Comparative Study of VTEC Estimates Derived From S/X VLBI and VGOS Observations
Space WeatherThe ionosphere, which strongly varies in time and space, is one of the largest error sources for microwave measurements, if not accounted for accurately.
Arno Rüegg +2 more
doaj +2 more sources
BEYOND HAND-CRAFTED FEATURES IN REMOTE SENSING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 A basic problem of image classification in remote sensing is to select suitable image features. However, modern classifiers such as AdaBoost allow for feature selection driven by the training data.
P. Tokarczyk +3 more
doaj +1 more source
FILAMENT EXTRACTION IN 3D PRINTING OF SHOTCRETE WALLS FROM TERRESTRIAL LASER SCANNER DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 This paper presents a method for filament extraction as a step in Shotcrete 3D printing (SC3DP) for quality control using Terrestrial Laser Scanning (TLS) after the printing process.
K. Mawas, M. Maboudi, M. Gerke
doaj +1 more source
AUTOMATIC GEOMETRIC INSPECTION IN DIGITAL FABRICATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Additive Manufacturing in construction allows to create complex objects of different materials. Accordingly, an appropriate co-registration and comparison between the printed object and its digital model is needed for several purposes: quality control ...
K. Mawas, M. Maboudi, M. Gerke
doaj +1 more source
Positional accuracy in close-range photogrammetry through Topography and Geodesy
Revista de Arquitectura (Bogotá), 2023 Computational three-dimensional modelling can be used to reconstruct real-world objects with all their details and conservation conditions. Photogrammetry offers products with accuracy, in addition to the flexibility of execution of simple and complex projects, according to the simplicity and speed in data acquisition.
Marcelo Antonio Nero +5 more
openaire +3 more sources
INVESTIGATIONS ON VERTICAL LAND MOVEMENTS ALONG THE NORTH SEA AND BALTIC SEA COAST IN GERMANY WITH PS INTERFEROMETRY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 The project ‘Determinations on the absolute sea-level rise on the German North Sea and Baltic Sea coasts’, funded by the Federal Ministry of Education and Research (BMBF) , has the overall goal to estimate the absolute sea level change in those coastal ...
A. Riedel +3 more
doaj +1 more source
DEVELOPING A GEODATABASE FOR EFFICIENT UAV-BASED AUTOMATIC CONTAINER CRANE INSPECTION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Inspection of container cranes is an important task to maintain the all-day operation in harbours. In practice, manually carrying out the inspection process is not the best solution due to the complexity, time consumption, and cost. The manual inspection
M. S. Bajauri, A. Alamouri, M. Gerke
doaj +1 more source
MIMO-SAR Interferometric Measurements for Structural Monitoring: Accuracy and Limitations
Remote Sensing, 2021 Terrestrial Radar Interferometry (TRI) is a measurement technique capable of measuring displacements with high temporal resolution at high accuracy.
Andreas Baumann-Ouyang +3 more
doaj +1 more source
Markerless point cloud registration with keypoint-based 4-points congruent sets [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 This paper addresses the registration of LiDAR point clouds. More specifically, we present an automatic method for markerless registration of two such point clouds given in arbitrary local scan coordinates – i.e.
P. W. Theiler +2 more
doaj +1 more source
MIMO-SAR Interferometric Measurements for Wind Turbine Tower Deformation Monitoring
Energies, 2023 Deformations affect the structural integrity of wind turbine towers. The health of such structures is thus assessed by monitoring. The majority of sensors used for this purpose are costly and require in situ installations.
Andreas Baumann-Ouyang +3 more
doaj +1 more source