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FEATURE ORIENTATION AND POSITIONAL ACCURACY ASSESSMENT OF DIGITAL ORTHOPHOTO AND LINE MAP FOR LARGE SCALE MAPPING: THE CASE STUDY ON BAHIR DAR TOWN, ETHIOPIA
Orthophoto Line map GPS data Positional Orientation Accuracy
2017/7/12
This study used in-situ GPS data to validate the accuracy of horizontal coordinates and orientation of linear features of orthophoto and line map for Bahir Dar city. GPS data is processed using GAMIT/...
VERTICAL ACCURACY ASSESSMENT OF ZY-3 DIGITAL SURFACE MODEL USING ICESAT/GLAS LASER ALTIMETER DATA
Accuracy assessment ZY-3 stereo images DSM ICESat/GLAS
2017/7/12
The Ziyuan-3 (ZY-3) satellite, as the first civilian high resolution surveying and mapping satellite in China, has a very important role in national 1 : 50,000 stereo mapping project. High...
ACCURACY ASSESSMENT OF POINT CLOUDS GEO-REFERENCING IN SURVEYING AND DOCUMENTATION OF HISTORICAL COMPLEXES
Geo-referencing Point Cloud Registration Architectural Heritage Accuracy
2017/6/20
Terrestrial Laser Scanning (TLS) technique is widely used for documentation and preservation of historical sites by for example creating three-dimensional (3-D) digital models or vectorial sketches. I...
ACCURACY ASSESSMENT OF A COMPLEX BUILDING 3D MODEL RECONSTRUCTED FROM IMAGES ACQUIRED WITH A LOW-COST UAS
Building 3D Model hyperbolic paraboloid low-cost UASs
2017/4/10
Nowadays, Unmanned Aerial Systems (UASs) are a wide used technique for acquisition in order to create buildings 3D models, providing the acquisition of a high number of images at very high resolution ...
ACCURACY ASSESSMENT OF CROWN DELINEATION METHODS FOR THE INDIVIDUAL TREES USING LIDAR DATA
Forest Canopy LiDAR Pit-free Stand-level
2016/11/30
Forest canopy density and height are used as variables in a number of environmental applications, including the estimation of biomass, forest extent and condition, and biodiversity. The airborne Light...
ACCURACY ASSESSMENT OF A UAV-BASED LANDSLIDE MONITORING SYSTEM
Landslides UAV structure-from-motion georeferencing bundle adjustment DEM
2016/11/11
Landslides are hazardous events with often disastrous consequences. Monitoring landslides with observations of high spatio-temporal resolution can help mitigate such hazards. Mini unmanned aerial vehi...
ACCURACY ASSESSMENT OF UNDERWATER PHOTOGRAMMETRIC THREE DIMENSIONAL MODELLING FOR CORAL REEFS
Photogrammetry Underwater 3D Modelling Accuracy Assessment Calibration Point Clouds Coral Reefs Coral Growth Moorea
2016/11/11
Recent advances in automation of photogrammetric 3D modelling software packages have stimulated interest in reconstructing highly accurate 3D object geometry in unconventional environments such as und...
ACCURACY ASSESSMENT OF GO PRO HERO 3 (BLACK) CAMERA IN UNDERWATER ENVIRONMENT
Calibration underwater action camera lens distortion quality assessment
2016/11/11
Modern digital cameras are increasing in quality whilst decreasing in size. In the last decade, a number of waterproof consumer digital cameras (action cameras) have become available, which often cost...
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
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....
POSITIONAL ACCURACY ASSESSMENT OF THE OPENSTREETMAP BUILDINGS LAYER THROUGH AUTOMATIC HOMOLOGOUS PAIRS DETECTION: THE METHOD AND A CASE STUDY
Accuracy Building Open Data
2016/7/8
OpenStreetMap (OSM) is currently the largest openly licensed collection of geospatial data. Being OSM increasingly exploited in a variety of applications, research has placed great attention on the as...
ACCURACY ASSESSMENT OF MOBILE MAPPING POINT CLOUDS USING THE EXISTING ENVIRONMENT AS TERRESTRIAL REFERENCE
Accuracy Assessment Mobile Mapping Point Cloud Reference Data Total Station 3D Test Field Facades Street profile
2016/7/5
Mobile mapping data is widely used in various applications, what makes it especially important for data users to get a statistically verified quality statement on the geometric accuracy of the acquire...
ACCURACY ASSESSMENT OF COASTAL TOPOGRAPHY DERIVED FROM UAV IMAGES
Digital Surface Model Coastal monitoring UAV photogrammetry Accuracy
2016/7/5
To monitor coastal environments, Unmanned Aerial Vehicle (UAV) is a low-cost and easy to use solution to enable data acquisition with high temporal frequency and spatial resolution. Compared to Light ...
ACCURACY ASSESSMENT OF DIRECT GEOREFERENCING FOR PHOTOGRAMMETRIC APPLICATIONS ON SMALL UNMANNED AERIAL PLATFORMS
Unmanned Aerial Vehicle UAV Direct Georeferencing GNSS Inertial Mapping
2016/3/25
Efficient mapping from unmanned aerial platforms cannot rely on aerial triangulation using known ground control points. The cost and time of setting ground control, added to the need for increased ove...
Accuracy Assessment of Building Height Estimation from a High Resolution Optical Image Combined with a Simulated SAR Image
Recognition SAR High resolution Fusion Reconstruction Urban Simulation TerraSAR-X
2016/1/25
Modern space borne SAR sensors like TerraSAR-X and COSMO-SkyMed are capable of acquiring images with a geometric ground
resolution of one meter. Airborne sensors achieve even higher ground resolutio...
ACCURACY ASSESSMENT OF CONTOUR INTERPOLATION FROM 1:50,000 TOPOGRAPHICAL MAPS AND SRTM DATA FOR 1:25,000 TOPOGRAPHICAL MAPPING
Topographic mapping Map revision Shuttle Radar Topographic Mission data Contour interpolation Contour accuracy assessment
2016/1/3
One major problem engendered by poverty in less-developed countries is that of inability of such countries to carry out fresh medium-scale topographical mapping at regular time intervals usingexpensiv...