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GIScience Blog

Month: September 2016

  • Third Arctic Expedition to Trail Valley

    The third arctic expedition to Trail Valley, located about 50 km north of Inuvik, NWT, Canada, concludes the field work within the PermaSAR project. Sabrina Marx, Katharina Anders (both: LiDAR Research Group, Heidelberg University) and Julia Boike (Alfred Wegener Institute, Potsdam) stayed a week in the research camp. We were not only able to acquire…

  • 3D data acquisition in the Ötztal Alps – Exploring 3D GIScience on the “Monster of Rock”

    As part of the practical field training “3D Geodatenerfassung im Hochgebirge (Ötztal), 31 July – 06 August”, the rock glacier “Äußeres Hochebenenkar” (42 ha), located in the Ötztal Alps in an elevation of 2,630-2,800 m a.s.l., was explored  by 16 students under the direction of Bernhard Höfle, Stefan Hecht and Martin Hämmerle. With the help…

  • 3D-TAIGER Summer School 2016 in Heidelberg

    From 5-7 September 2016 the GIScience Heidelberg Group hosted a summer school within the collaboration and exchange project 3D-TAIGER (’Multi-Source 3D Geoinformation Extraction for Improved Management of Forest and Natural Hazards – Collaboration between TAIwan and GERmany’). The summer school is a follow-up of the kickoff meeting in Tainan in April this year. The first…

  • Social Media Data: Topological Outliers and Their Influence on Spatial Analysis

    Social media data is one of the recent and prominent sources of georefrenced social information. It allows in-situ insights into the everyday lifes of ordinary people. For all that, social media data also confronts us with considerable analytical challenges. One of these challenges is the mingling of different user habits, functions of geographic space and,…

  • Talk on Navigation by J. Schönig, Tuesday Sept. 13 @GiscienceHeidelberg

    we invite anybody to the following presentation at the GIScience Research Group given by  Prof. Johannes Schönig (Hasselt University) When: Tuesday 13.09.2016, 10:00am Where: Institute of Geography, Heidelberg University Im Neuenheimer Feld 348, Lecture Hall about: “The Shortest Path is Dead – Novel Ways to Get from A to B” Navigation systems typically assists drivers…

  • Full-Waveform Airborne Laser Scanning in Vegetation Studies—A Review of Point Cloud and Waveform Features for Tree Species Classification

    In recent years, small-footprint full-waveform airborne laser scanning has become readily available and established for vegetation studies in the fields of forestry, agriculture and urban studies. Independent of the field of application and the derived final product, each study uses features to classify a target object and to assess its characteristics (e.g., tree species). These…

  • Crowdsourced Classification of 3D Point Clouds

    Within the 3D-MAPP project we currently developed a workflow and a web based tool, that allow volunteers (and experts) to classiffy 3D point clouds in just a few seconds. The approach combines the point cloud interpretation skills of humans and the scalability of crowdsourcing. Furthermore, crowdsourced geographic information can be of high value to automated…