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METHODS FOR DERIVING CANADA WIDE GEO-SPATIAL DATASETS IN SUPPORT OF ENVIRONMENTAL MONITORING AND MODELLING
DERIVING CANADA WIDE GEO-SPATIAL DATASETS IN SUPPORT ENVIRONMENTAL MONITORING MODELLING
2015/3/13
METHODS FOR DERIVING CANADA WIDE GEO-SPATIAL DATASETS IN SUPPORT OF ENVIRONMENTAL MONITORING AND MODELLING.
TERRAIN MODELLING AND ANALYSIS USING LASER SCANNER DATA
airborne laser scanning digital terrain model ground surface modelling single tree detection laser data classification terrain database qualitative methods resolution pyramid
2015/3/10
Very detailed high-resolution (3D) digital terrain models can be obtained using airborne laser scanner data. However, laser scanning usually entails huge data sets even for moderate areas, making data...
3D RECORDING, MODELLING AND VISUALISATION OF THE FORTIFICATION KRISTIANSTEN IN TRONDHEIM (NORWAY) BY PHOTOGRAMMETRIC METHODS AND TERRESTRIAL LASER SCANNING IN THE FRAMEWORK OF ERASMUS PROGRAMMES
3D CAD meshing model reconstruction virtual
2015/3/3
In this contribution the 3D recording, 3D modelling and 3D visualisation of the fortification Kristiansten in Trondheim (Norway) by digital photogrammetry and terrestrial laser scanning are presented....
RANGE AND IMAGE BASED MODELLING: A WAY FOR FRESCOED VAULT TEXTURING OPTIMIZATION
Structure From Motion Laser scanning Photogrammetry Cultural Heritage Texture Precision
2015/3/3
In the restoration of the frescoed vaults it is not only important to know the geometric shape of the painted surface, but it is essential to document its chromatic characterization and conservation s...
MIND YOUR GREY TONES – EXAMINING THE INFLUENCE OF DECOLOURIZATION METHODS ON INTEREST POINT EXTRACTION AND MATCHING FOR ARCHITECTURAL IMAGE-BASED MODELLING
Architecture Colour Decolourization Feature Imagery Modelling Point Cloud Structure-from-Motion
2015/3/3
This paper investigates the use of different greyscale conversion algorithms to decolourize colour images as input for two Structure-from-Motion (SfM) software packages. Although SfM software commonly...
3D MODELLING: CROSSING TRADITIONAL BOUNDARIES BETWEEN DIFFERENT RESEARCH AREAS
Interdisciplinarity 3D modelling architecture GIS dialectic model common integrative approach
2015/3/3
A 3D reconstruction of complex architecture will never be complete nor constructively sound without the combination of knowledge and expertise from different scientific branches. Yet, how should all t...
FIRST EXPERIENCES WITH KINECT V2 SENSOR FOR CLOSE RANGE 3D MODELLING
Kinect v2 Sensor RGB-D camera Range Imaging Calibration Point Cloud Assessment
2015/3/3
RGB-D cameras, also known as range imaging cameras, are a recent generation of sensors. As they are suitable for measuring distances to objects at high frame rate, such sensors are increasingly used f...
SEMI-AUTOMATED EDGE SEGMENT SPECIFICATION FOR AN INTERACTIVE MODELLING SYSTEM OF ROBOT ENVIRONMENTS
Modelling Semi-automation User interfaces On-line Robots
2015/1/6
Interactive methods are well suited to telerobotics purposes. Based on the super-imposition of the model on video images,they provide a friendly way to acquire or update the environment model from an ...
PROBLEMS IN GEOMETRIC MODELLING AND PERCEPTUAL GROUPING OF MAN-MADE OBJECTS IN AERIAL IMAGES
Image understanding Semantics Knowledge representation Object recognition Urban objects
2014/12/31
Structural approaches of pattern recognition are frequently proposed for man-made objects in aerial images. Especially model based methods are considered using geometric, topologic and structural know...
A ROBUST AUTOMATIC DIGITAL TERRAIN MODELLING METHOD BASED ON FUZZY LOGIC
Fuzzy Logic Fuzzy Reasoning Fuzzy Inference System DTM Matching Robust Estimation Finite Elements
2014/12/31
Most of the proposed methods for automatic DTM reconstruction are based on parametric estimation processes with very little capabilities for reasoning and decision making. Human operators which measur...
3D MODELLING OF BUILDINGS USING LASER SCANNING AND SPECTRAL INFORMATION
Building Reconstruction Urban Objects Laser Scanner Data Fusion
2014/12/31
In this paper an approach for 3D building modelling based on laser scanning data combined with spectral information is presented. Airborne laser scanners offer a new efficient method for 3D data acqui...
Data assimilation techniques and modelling uncertainty in geosciences
Data assimilation (DA) Uncertainty 4D-VAR Minimization Cost function Kalman filter
2014/12/1
"You cannot step into the same river twice". Perhaps this ancient quote is the best phrase to describe the dynamic nature of the earth system. If we regard the earth as a several mixed systems, we wan...
Validation techniques of agent based modelling for geospatial simulations
Verification validation calibration agent based modelling Error Artefact
2014/12/1
One of the most interesting aspects of modelling and simulation study is to describe the real world phenomena that have specific properties; especially those that are in large scales and have dynamic ...
Automatic modelling of building façade objects via primitive shapes
Detection Mobile Laser Scanners Point clouds Geometric Feature Urban Trees Principal direction
2014/9/9
This paper presents a new approach to recognize individual façade objects and to reconstruct such objects in 3D using MLS point clouds. Core of the approach is a primitive shape based algorithm, ...
THE LASER SCAN DATA AS A KEY ELEMENT IN THE HYDRAULIC FLOOD MODELLING IN URBAN AREAS
Airborne Laser Scanning (ALS) GIS Flood Risk DTM Urban Areas.
2014/4/24
This paper is intended to highlight the need to use data at high spatial resolution, such as those obtained through the use of Airborne
Laser Scanning (ALS) techniques, to support hydraulic models f...