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GEOREFERENCING IN GNSS-CHALLENGED ENVIRONMENT: INTEGRATING UWB AND IMU TECHNOLOGIES
Ultra-wide band GNSS-denied positioning UXO mapping
2017/7/12
Acquiring geospatial data in GNSS compromised environments remains a problem in mapping and positioning in general. Urban canyons, heavily vegetated areas, indoor environments represent different leve...
PLEIADES PROJECT:ASSESSMENT OF GEOREFERENCING ACCURACY,IMAGE QUALITY,PANSHARPENING PERFORMENCE AND DSM/DTM QUALITY
Pleiades Georeferencing Accuracy Image Quality Pansharpening DSM/DTM
2016/7/5
Pleiades 1A and 1B are twin optical satellites of Optical and Radar Federated Earth Observation (ORFEO) program jointly running by France and Italy. They are the first satellites of Europe with sub-me...
A SYSTEMATIC COMPARISON OF DIRECT AND IMAGE-BASED GEOREFERENCING IN CHALLENGING URBAN AREAS
Image Sequence Stereo Mobile Mapping Direct Integrated Georeferencing Sensor Orientation
2016/7/5
Image-based mobile mapping systems enable an efficient acquisition of georeferenced image sequences, which can be used for geo-data capture in subsequent steps. In order to provide accurate measuremen...
DIRECT GEOREFERENCING OF UAV DATA BASED ON SIMPLE BUILDING STRUCTURES
image orientation structure from motion tie points building structures
2016/7/5
Unmanned Aerial Vehicle (UAV) data acquisition is more flexible compared with the more complex traditional airborne data acquisition. This advantage puts UAV platforms in a position as an alternative ...
GEOREFERENCING ACCURACY ANALYSIS OF A SINGLE WORLDVIEW-3 IMAGE COLLECTED OVER MILAN
Bias Geolocalization Ground Sample Distance Rational Functions WorldView-3
2016/7/4
The use of rational functions has become a standard for very high-resolution satellite imagery (VHRSI). On the other hand, the overall geolocalization accuracy via direct georeferencing from on board ...
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...
Precise Georeferencing in the Absence of Ground Control: A Strip Adjustment Approach
Sensor modelling satellite imagery strip adjustment RPCs accuracy evaluation
2016/1/25
The options available for orientation of satellite imagery in cases requiring optimal metric precision are generally rational functions,
where the RPCs are provided by the image supplier, or a rigor...
Georeferencing from GEOEYE-1 Imagery: Early Indications of Metric Performance
GeoEye-1 RPCs geopositioning accuracy evaluation bias compensation satellite imagery
2016/1/25
GeoEye-1 was launched in September 2008, and after some five months of commissioning commenced commercial operations in
February, 2009. With its 0.41m panchromatic and 1.65m multispectral resolution...
Automated DSM based Georeferencing of CARTOSAT-1 Stereo Scenes
Georeferencing Digital elevation models (DEM) Digital photogrammetry Feature extraction Stereo CARTOSAT-1
2016/1/25
High resolution stereo satellite imagery is well suited for the creation of digital surface models (DSM). A system for highly automated
and operational DSM and orthoimage generation based on CARTOSAT...
Georeferencing Multi-Temporal and Multi-Scale Imagery in Photogrammetry
Georeference multi-image bundle block adjustment
2015/12/16
In recent decades, photogrammetrists have been exploring the georeferencing approaches that can improve consistency, completeness,
and reliability of referenced spatial information. In this paper, an...
GEOREFERENCING ON SYNTHETIC APERTURE RADAR IMAGERY
The geometrical imaging image information image the shadow
2016/1/15
Due to the SAR1 geometry imaging, SAR images include geometric distortions that would be erroneous image information and the images should be geometrically calibrated. As the radar systems are side lo...
UAV-Based Augmented Monitoring - Real-Time Georeferencing and Integration of Video Imagery with Virtual Globes
Mobile mapping system Sensor orientation GPS-assisted photogrammetry
2015/11/24
Over the last few years low-cost micro and mini UAV systems equipped with light-weight geosensors such as video cameras have started to appear on the market. These UAV systems are mostly instrumented ...
Theoretical Accuracy of Direct Georeferencing with Position and Orientation System in Aerial Photogrammetry
Aerial Photogrammetry GPS/INS Orientation Accuracy Error Algorithms
2015/11/23
According to the principle of space intersection、collinearity equations and error propagation law, mathematical models of theoretical accuracy of direct georeferencing are proposed in this paper. The ...
DIRECT GEOREFERENCING OF DIGITAL CAMERA IMAGES FOR STEREO PLOTTING
direct georeferencing digital aerial camera UltraCamD GPS/IMU calibration
2015/9/17
In the years of 2004 to 2006, the Portuguese authority for forestry, the Direcção Geral dos Recursos Florestais (DGRF) ordered a digital photo flight over the whole country. The images, acqu...
THE DIRECT GEOREFERENCING APPLICATION AND PERFORMANCE ANALYSIS OF UAV HELICOPTER IN GCP-FREE AREA
GeoSat Informatics Technology Corporation National Cheng Kung University The University of Calgary Purdue University
2015/9/10
There are many disasters happened because the weather changes extremely in these years. To facilitate applications such as environment detection or monitoring becomes very important. Therefore, the de...