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DTM GENERATION THROUGH UAV SURVEY WITH A FISHEYE CAMERA ON A VINEYARD
UAV Precision Agriculture Fisheye DTM Kriging interpolation Vegetation
2018/6/5
Precision agriculture recommends a sustainable employment of nutrients and water, according to the site-specific crop requirements. In this context, the knowledge of soil characteristics allows to app...
3D MODELLING OF ARCHAEOLOGICAL SMALL FINDS BY A LOW-COST RANGE CAMERA: METHODOLOGY AND FIRST RESULTS
Close range photogrammetry 3D modelling Range Cameras Structure Sensor Small Finds
2017/6/20
The production of reliable documentation of small finds is a crucial process during archaeological excavations. Range cameras can be a valid alternative to traditional illustration methods: they are v...
AN APPLICATION OF CLOSE-UP PHOTOGRAMMETRY IN VITICULTURE
camera close-up photogrammetry digital images viticulture mesh
2016/12/1
Within the context of Geomatic-based Agriculture an application of close-up photogrammetry is illustrated with reference to precision farming. The application has been carried out in a particularly at...
MODELLING LANDSCAPE MORPHODYNAMICS BY TERRESTRIAL PHOTOGRAMMETRY:AN APPLICATION TO BEACH AND FLUVIAL SYSTEMS
Monitoring Terrestrial photogrammetry 3D point cloud Morphological changes Digital Elevation Model (DEM) Structure-from-Motion (SfM)
2016/12/1
Beach and fluvial systems are highly dynamic environments, being constantly modified by the action of different natural and anthropic phenomena. To understand their behaviour and to support a sustaina...
LONG-TERM MONITORING OF GLACIER CHANGE AT GÖSSNITZKEES (AUSTRIA) USING TERRESTRIAL PHOTOGRAMMETRY
Terrestrial photogrammetry Monitoring Glacier change Consumer camera SfM Automation Gossnitzkees
2016/11/30
Gössnitzkees is a small heavily debris-covered cirque glacier (49.8 ha) located in the Schober Mountains, Hohe Tauern Range, Austrian Alps. Glacier nourishment is mainly due to avalanches descend...
ON THE CHALLENGES IN STEREOGRAMMETRIC FUSION OF SAR AND OPTICAL IMAGERY FOR URBAN AREAS
Data fusion stereogrammetry synthetic aperture radar (SAR) optical imagery multi-sensor matching urban areas
2016/11/24
This paper discusses the challenges arising if SAR and optical imagery shall be fused for stereogrammetric 3D analysis of urban areas. In this context, a concept for SAR and optical data fusion is pre...
THE EFFECT OF PANSHARPENING ALGORITHMS ON THE RESULTING ORTHOIMAGERY
Orthoimage Pansharpening Digital Surface Model (DSM) Accuracy Pleiades-1B
2016/11/23
This paper evaluates the geometric effects of pansharpening algorithms on automatically generated DSMs and thus on the resulting orthoimagery through a quantitative assessment of the accuracy on the e...
METHODOLOGY FOR ORIENTATION AND FUSION OF PHOTOGRAMMETRIC AND LIDARDATAS FOR MULTITEMPORAL STUDIES
Photogrammetry LiDAR data fusion multitemporal analyses
2016/11/23
Nowadays, data fusion is one of the trends in geomatics sciences, due to the necessity of merging data from different kind of sensors and periods of time. Also, to extrract the maximum information fro...
AUTOMATIC 3D BUILDING RECONSTRUCTION FROM A DENSE IMAGE MATCHING DATASET
3D reconstruction buildings dense image matching data integration
2016/7/28
Over the last 20 years the demand for three dimensional (3D) building models has resulted in a vast amount of research being conducted in attempts to automate the extraction and reconstruction of mode...
AUTOMATIC GENERATION OF BUILDING MODELS WITH LEVELS OF DETAIL 1-3
Building Model Orientation 3D Reconstruction Point Cloud Segmentation
2016/7/28
We present a workflow for the automatic generation of building models with levels of detail (LOD) 1 to 3 according to the CityGML standard (Gröger et al., 2012). We start with orienting unsorted ...
EVALUATION OF SIFT AND SURF FOR VISION BASED LOCALIZATION
Vision Based Localization Local Bundle Adjustment Feature Extraction performance evaluation
2016/7/28
Vision based localization is widely investigated for the autonomous navigation and robotics. One of the basic steps of vision based localization is the extraction of interest points in images that are...
CLASSIFICATION OF PHOTOGRAMMETRIC POINT CLOUDS OF SCAFFOLDS FOR CONSTRUCTION SITE MONITORING USING SUBSPACE CLUSTERING AND PCA
Scaffolding components Photogrammetric point clouds Subspace clustering PCA Classification
2016/7/28
This paper presents an approach for the classification of photogrammetric point clouds of scaffolding components in a construction site, aiming at making a preparation for the automatic monitoring of ...
POOR TEXTURAL IMAGE MATCHING BASED ON GRAPH THEORY
Poor Textural Image Image Matching Graph Matching Affinity Tensor Power Iteration Algorithm
2016/7/28
Image matching lies at the heart of photogrammetry and computer vision. For poor textural images, the matching result is affected by low contrast, repetitive patterns, discontinuity or occlusion, few ...
DENOISING ALGORITHM FOR THE PIXEL-RESPONSE NON-UNIFORMITY CORRECTION OF A SCIENTIFIC CMOS UNDER LOW LIGHT CONDITIONS
CMOS Denoising algorithm Pixel-response non-uniformity
2016/7/28
We present a denoising algorithm for the pixel-response non-uniformity correction of a scientific complementary metal–oxide–semiconductor (CMOS) image sensor, which captures images under extremely low...
THE USE OF COMPUTER VISION ALGORITHMS FOR AUTOMATIC ORIENTATION OF TERRESTRIAL LASER SCANNING DATA
Feature Extraction Scan Registration Computer Vision analysis of image matching algorithms TLS
2016/7/27
The paper presents analysis of the orientation of terrestrial laser scanning (TLS) data. In the proposed data processing methodology, point clouds are considered as panoramic images enriched by the de...