Michael Auer

Heidelberg Institute for Geospatial Technology (HeiGIT) · Big Spatial DataAnalysis

This level I project revitalizes and enhances the 3D WebGIS component of the MayaArch3D Project, which integrates 3D models of cities, terrain, and objects with associated, geo-referenced data for humanities scholarship. First, we will review the existing code of the 3D WebGIS. Second, we will define concrete steps to (1) make the system more custo...

OpenStreetMap (OSM) is a collaborative project collecting geographical data of the entire world. The level of detail of OSM data and its data quality vary much across different regions and domains. In order to analyse such variations it is often necessary to research the history and evolution of the OSM data. The OpenStreetMap History Database (OSH...

3D WebGIS systems have been mentioned in the literature almost since the beginning of the graphical web era in the late 1990s. The potential use of 3D WebGIS is linked to a wide range of scientific and application domains, such as planning, controlling, tracking or simulation in crisis management, military mission planning, urban information system...

Over the last couple of years, the growing OpenStreetMap (OSM) database repeatedly proved its potential for various use cases, including disaster management. Disaster mapping activations show increasing numbers of contributions, but oftentimes raise questions related to the quality of the provided Volunteered Geographic Information. In order to bet...

OpenStreetMap (OSM) tags were used to produce a global Open Land Cover (OLC) product with fractional data gaps available at osmlanduse.org. Data gaps in the global OLC map were filled for a case study in Heidelberg, Germany using free remote sensing data, which resulted in a land cover (LC) prototype with complete coverage in this area. Sixty tags...

This book reflects a current state of the art and future perspectives of Digital Heritage focusing on not interpretative reconstruction and including as well as bridging practical and theoretical perspectives, strategies and approaches. Comprehensive key challenges are related to knowledge transfer and management as well as data handling within a i...

Archaeological projects increasingly collect airborne LiDAR data to use as a remote sensing tool for survey and analysis. Publication possibilities for LiDAR datasets, however, are limited due to the large size and often proprietary nature of the data. Fortunately, web-based, geographic information systems (WebGIS) that can securely manage temporal...

The MayaArch3D project aims to realize a web-based archaeological research platform bringing spatial and non-spatial databases together and providing visualization and analysis tools. Especially the 3D components of the platform use hierarchical segmentation concepts to structure the data and to perform queries on semantic entities.

Many important Cultural Heritage sites have been studied over long periods of time by different means of technical equipment, methods and intentions by different researchers. This has led to huge amounts of heterogeneous "traditional" datasets and formats. The rising popularity of 3D models in the field of Cultural Heritage in recent years has brou...

Introduction Recent technological advancements are resulting in new archaeological applications of LIDAR (Light detection and ranging). One common use is archaeological prospection; another is to use 3D models acquired from LIDAR to reconstruct ancient architecture and landscapes (in our case the UNESCO World Heritage Site of Copan, Honduras). A ne...

Global online maps are an important tool and data sets such for such maps are normally provided by commercial providers or public authorities. Nevertheless, the ever expanding trend of collaboratively collected geodata by hobbyists, namely Volunteered Geographic Information (VGI), increases regarding both data quantity and quality. Therefore, VGI c...

Parallel processing methods in Geographic Information Systems (GIS) are traditionally used to accelerate the calculation of large data volumes with sophisticated spatial algorithms. Such kind of acceleration can also be applied to provide real-time GIS applications to improve the responsiveness of user interactions with the data. This paper present...

Zusammenfassung Über die gesamte Provinz Sichuan (China) verteilt existieren in Stein gemeißelte buddhisti-sche Felsinschriften (Sutren) aus dem 8. bis 12. Jahrhundert. Bisher erfolgte die Dokumen-tation und Reproduktion der Oberflächentextur der Inschriften durch einfaches abpausen auf Papier (Rubbing). Innovative Methoden aus dem terrestrischen L...

Die Datenmenge bei OpenStreetMap wächst bekanntlich rasant. Die ursprünglich vorrangig aufgenommenen Straßen haben schon eine – insbesondere in deutschen Ballungsgebieten - beeindruckende Menge erreicht, wie statistische Auswertungen zur Datenqualität von OSM zeigen (vgl. Zielstra & Zipf 2010, Neis et.al 2010). Gleichzeitig war OSM nie nur ein Proj...

Currently we encounter two trends within the broader GI community: one is the move to web-based applications based on open standards as defined by the Open Geospatial Consortium (OGC) resulting in more flexible and interoperable solutions. The other is the raise of the prosumer-oriented GeoWeb2.0, with its user generated content. Goodchild (2007) g...

In most mobile navigation devices perspective map view is offered as an alternative to the traditional 2D map view. This paper describes a map usability test , which studies differences in the usability of bot h map views, with the result, that no significant dif ferences can be found.

Over the entire province of Sichuan (China) there exist Buddhist stone inscriptions – so called Stone Sutras – dating from 8 th to 12 th century. So far, the documentation and reproduction of the surface texture of these historic inscriptions took place via simple manual tracing on paper (rubbing). Innovative Terrestrial Laser Scanning (TLS) method...