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Surveying World Heritage Islamic Monuments in North Africa: Experi...

By: A. Almagro

Description: Escuela de Estudios Árabes, Spanish Council for Scientific Research (CSIC), Granada, Spain. Different experiences of surveys of Islamic monuments from different sites of Tunisia, Algeria and Morocco are presented. They have been made with simple tools: one photographic camera and a laser meter, without a previous planning or prevision for the survey, profiting from visits organized during scientific meetings to which the author was invited. Some of these m...

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Cultural Heritage Content Re-use: an Aggregators's Point of View :...

By: E. Theofanous; M. Ioannides; D. Gavrilis

Description: Digital Curation Unit – IMIS, Athena Research Center, Maroussi, 15125, Greece. This paper introduces a use case of re-using aggregated and enriched metadata for the tourism creative industry. The MORe aggregation and enrichment framework is presented along with an example for enriching cultural heritage objects harvested from a number of Omeka repositories. The enriched content is then published both to the EU Digital Library Europeana (

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A Comparitive Study Using Geometric and Vertical Profile Features ...

By: T. K. Remmel; C. Ko; G. Sohn

Description: Department of Earth & Space Science & Engineering, York University, Toronto, Ontario, Canada. We present a comparative study between two different approaches for tree genera classification using descriptors derived from tree geometry and those derived from the vertical profile analysis of LiDAR point data. The different methods provide two perspectives for processing LiDAR point clouds for tree genera identification. The geometric perspective analyzes indivi...

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Intergraph Canada : Volume Ii-2, Issue 1 (11/11/2014)

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Spatio-temporal Trends of Fire in Slash and Burn Agriculture Lands...

By: P. P. Mondal; H. Padalia

Description: Forestry and Ecology Department, Indian Institute of Remote Sensing,ISRO, Dehradun 248001, India. Increasing incidences of fire from land conversion and residue burning in tropics is the major concern in global warming. Spatial and temporal monitoring of trends of fire incidences is, therefore, significant in order to determine contribution of carbon emissions from slash and burn agriculture. In this study, we analyzed time-series Terra / Aqua MODIS satell...

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Effects of Building Primitive Library and Automatic Correction of ...

By: G. Vosselman; S. Oude Elberink; B. Xiong

Description: ITC, University of Twente, the Netherlands. The reconstruction of 3D building models has been extensively researched in the last decade. The model driven methods, which fit building parts to predefined building primitives and glue them together into complete buildings, have been proved to be powerful. This paper solves two open questions left in prior works. Firstly, the primitive building libraries defined in literature are limited to few types of buildi...

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Data-oriented Algorithm for Route Choice Set Generation in a Metro...

By: T. Usui; R. Shibasaki; Y. Sekimoto; T. Nakamura

Description: Center for Spatial Information Science, University of Tokyo, Tokyo, Japan. Nowadays, for the estimation of traffic demand or people flow, modelling route choice activity in road networks is an important task and many algorithms have been developed to generate route choice sets. However, developing an algorithm based on a small amount of data that can be applied generally within a metropolitan area is difficult. This is because the characteristics of road n...

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Geometric Road Runoff Estimation from Laser Mobile Mapping Data : ...

By: J. Wang; P. Arias-sanchez; R. Lindenbergh; M. Menenti; H. Gonzalez-jorge

Description: Dept. of Geoscience and Remote Sensing, Delft University of Technology Building 23, Stevinweg 1, P.O. Box 5048, 2628CN Delft, The Netherlands. Mountain roads are the lifelines of remote areas but are often situated in complicated settings and prone to landslides, rock fall, avalanches and damages due to surface water runoff. The impact and likelihood of these types of hazards can be partly assessed by a detailed geometric analysis of the road environment. ...

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Extracting Mobile Objects in Images Using a Velodyne Lidar Point C...

By: W. Xiao; M. Brédif; B. Vallet

Description: IGN, Laboratoire MATIS, 73 avenue de Paris, 94165 Saint-Mandé, France. This paper presents a full pipeline to extract mobile objects in images based on a simultaneous laser acquisition with a Velodyne scanner. The point cloud is first analysed to extract mobile objects in 3D. This is done using Dempster-Shafer theory and it results in weights telling for each points if it corresponds to a mobile object, a fixed object or if no decision can be made based on...

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Localization of Windows and Doors in 3D Point Clouds of Facades : ...

By: W. Nguatem; H. Mayer; M. Drauschke

Description: Institute of Applied Computer Science Bundeswehr University Munich Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany. In this paper, we present a fully automatic approach to localize the outlines of facade objects (windows and doors) in 3D point clouds of facades. We introduce an approach to search for the main facade wall and locate the facade objects within a probabilistic framework. Our search routine is based on Monte Carlo Simulation (MC-Simulation)....

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Automatic Repair of Citygml Lod2 Buildings Using Shrink-wrapping :...

By: H. Ledoux; J. Stoter; Z. Zhao

Description: Department of GIS Technology, Faculty of Architecture and The Built Environment, Delft University of Technology, Delft, the Netherlands. The LoD2 building models defined in CityGML are widely used in 3D city applications. The underlying geometry for such models is a GML solid (without interior shells), whose boundary should be a closed 2-manifold. However, this condition is often violated in practice because of the way LoD2 models are constructed and excha...

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A Novel Approach to Veterinary Spatial Epidemiology: Dasymetric Re...

By: G. Boo; S. I. Fabrikant; S. Leyk

Description: Department of Geography, University of Zürich, Switzerland. In spatial epidemiology, disease incidence and demographic data are commonly summarized within larger regions such as administrative units because of privacy concerns. As a consequence, analyses using these aggregated data are subject to the Modifiable Areal Unit Problem (MAUP) as the geographical manifestation of ecological fallacy. In this study, we create small area disease estimates through d...

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Subspacing Based on Connected Opening Spaces and for Different Loc...

By: A. A. Khan; T. H. Kolbe

Description: Institute for Geodesy, GIS, and Land Management, Technische Universität München, Arcisstraße 21, 80333 München, Germany. Indoor navigation has to deal with more issues as compared to outdoor navigation. Those issues include but are not limited to; need more level of detail to process enclosing area around navigating subject or object, consideration of the context of navigation (about locomotion type and its operating environment), and dealing with unconstr...

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Preface : Volume Ii-3/W5, Issue 1 (19/08/2015)

Description: No abstract available.

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Airborne Crowd Density Estimation : Volume Ii-3/W3, Issue 1 (08/10...

By: O. Meynberg; G. Kuschk

Description: Remote Sensing Technology Institute, German Aerospace Center (DLR), 82234 Wessling, Germany. This paper proposes a new method for estimating human crowd densities from aerial imagery. Applications benefiting from an accurate crowd monitoring system are mainly found in the security sector. Normally crowd density estimation is done through in-situ camera systems mounted on high locations although this is not appropriate in case of very large crowds with thou...

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Towards a Generic Method for Building-parcel Vector Data Adjustmen...

By: Y. Méneroux; M. Brasebin

Description: IGN, COGIT, 73 Avenue de Paris 94160 Saint-Mandé, France. Being able to merge high quality and complete building models with parcel data is of a paramount importance for any application dealing with urban planning. However since parcel boundaries often stand for the legal reference frame, the whole correction will be exclusively done on building features. Then a major task is to identify spatial relationships and properties that buildings should keep thro...

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Land Cover Change Knowledge Representation Using Temporal Logic an...

By: H. Wu; J. Chen

Description: National Geomatics Center of China, Beijing, 100830, China. The knowledge representation model plays an important role in the dynamic extracting and web service for Land Cover Change. While former researches were mainly focus on the represent of Spatio-temporal data itself, fewer of them attended the relations of Land Cover Information associated with change. This paper focused on the Land Cover Representation Model, and presented a knowledge representation ...

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The Potential of Specular Reflections for Façade Image Analysis : ...

By: M. Drauschke; H. Mayer

Description: German Aerospace Center, Institute of Robotics and Mechatronics, Perception and Cognition, Oberpfaffenhofen, Germany. Several approaches for window detection have been proposed in recent years, which all use the window size, shape or position within the façade as characteristics for the detection. In this paper another property of windows is proposed for their detection: Windows are made of glass, so they tend to specularly reflect sun light, while the sur...

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Contextual Classification of Point Cloud Data by Exploiting Indivi...

By: B. Jutzi; A. Schmidt; C. Mallet; S. Hinz; M. Weinmann; F. Rottensteiner

Description: Institute of Photogrammetry and Remote Sensing, Karlsruhe Institute of Technology (KIT), Englerstr. 7, 76131 Karlsruhe, Germany. The fully automated analysis of 3D point clouds is of great importance in photogrammetry, remote sensing and computer vision. For reliably extracting objects such as buildings, road inventory or vegetation, many approaches rely on the results of a point cloud classification, where each 3D point is assigned a respective semantic c...

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A Sensor Skid for Precise 3D Modeling of Production Lines : Volume...

By: J. Schauer; D. Borrmann; U. Rautenberg; D. Koriath; J. Elseberg; A. Nüchter

Description: Informatics VII : Robotics and Telematics, Julius-Maximilians-University Würzburg, Am Hubland, Wüzburg 97074, Germany. Motivated by the increasing need of rapid characterization of environments in 3D, we designed and built a sensor skid that automates the work of an operator of terrestrial laser scanners. The system combines terrestrial laser scanning with kinematic laser scanning and uses a novel semi-rigid SLAMmethod. It enables us to digitize factory en...

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