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GIScience Blog

Category: Research

  • New project: LOKI – Airborne Observation of Critical Infrastructures

    On Feb 12, 2020, the kick-off meeting for the newly funded BMBF project LOKI – Airborne Observation of Critical Infrastructures (Luftgestützte Observation Kritischer Infrastrukturen) was hosted by the GIScience and 3DGeo research groups of Heidelberg University. The aim of the LOKI project is to develop an interdisciplinary system that enables fast and reliable airborne situation…

  • HELIOS used in a study on hetero-integration which enables fast switching time-of-flight sensors for light detection and ranging

    The Heidelberg LiDAR Operations Simulator (HELIOS) is an open source laser scanning simulation framework for interactive simulation and visualization of terrestrial, mobile and airborne laser scanning surveys. It can be flexibly used for teaching and training of laser scanning, development of new scanner hardware and scanning methods, or generation of artificial scan data sets to…

  • Multitemporal Terrestrial Laser Scanning Point Clouds for Thaw Subsidence Observation

    New paper on “Multitemporal Terrestrial Laser Scanning Point Clouds for Thaw Subsidence Observation at Arctic Permafrost Monitoring Sites” The paper investigates different methods for quantifying thaw subsidence using terrestrial laser scanning (TLS) point clouds. Thaw subsidence is a slow (mm‐cm per year) vertical displacement of the ground surface common in ice‐rich permafrost‐underlain landscapes. It is…

  • 3DGeo licensed drone pilots

    During the last weeks, members of the 3DGeo group were found studying for the “Kenntnisnachweisprüfung”, the official examination for drone pilots in Germany. Today, we are proud to announce that all six applicants from our group have passed both the theoretical test as well as a practical exam where they had to show their capability…

  • Detecting OSM Building Facades with Graffiti Artwork Based on Street View Images and Social Media using Deep Learning

    As a recognized type of art, graffiti is a cultural asset and an important aspect of a city’s aesthetics. As such, graffiti is associated with social and commercial vibrancy and is known to attract tourists. However, positional uncertainty and incompleteness are current issues of open geo-datasets containing graffiti data. In a newly published paper, we…

  • GIScience Contributions to the 2019 State of the Map Academic Track proceedings

    Recently the SOTM 2019 Heidelberg Academic Track Proceedings have been published. GIScience Research Group Heidelberg and HeiGIT contributed several talks and posters. Below you can find an overview. Contact us if you are interested in further details on ongoing research. Klonner, Hartmann, Djami, Zipf, A. (2019). “Ohsome” OpenStreetMap Data Evaluation: Fitness of Field Papers for…

  • Learning salience models of indoor landmarks

    In landmark-based way-finding, determining the most salient landmark from several candidates at decision points is challenging. To overcome this problem, current approaches usually rely on a linear model to measure the salience of landmarks. However, linear models are not always able to establish an accurate quantitative relationship between the attributes of a landmark and its…

  • ohsome presentation in Malta at the 3rd International Workshop on Spatial Data Quality

    Around 55 participants gathered in Malta for the 3rd International Workshop on Spatial Data Quality 2020 from 28th to 29th of January. Among national mapping agencies, software providers and standardization organizations, HeiGIT had the opportunity to present its ohsome – OSM history analytics platform for analyzing spatial data quality by looking at the temporal development…

  • Mapping Rohingya Refugee Camps in Bangladesh – An Analysis Using the OSHDB API

    Humanitarian mapping activations show increasing numbers of contribution. This blog post illustrates the specific potential of the Open Source OSHDB API [1] for detailed analyses of such activations by means of a case study. The examined area is Cox’s Bazar in Southeast Bangladesh, where almost 1 million Rohingya refugees fled to from Myanmar in 2015.…

  • Call for Abstracts for PhD Colloquium on “Methods for analysing spatiotemporal data”

    Call for Abstracts: 5th PhD Colloquium on “Methods for analysing spatiotemporal data” 1-2 Oct 2020 in Dortmund, Germany The Division on Geoinformatics (Abteilung Geoinformatik) of the German Geodetic Commission (Deutsche Geodätische Kommission, DGK) and the Working Group on Geoinformatics (Arbeitskreis Geoinformatik) of the German Society for Photogrammetry, Remote Sensing and Geoinformation (Deutsche Gesellschaft für Photogrammetrie,…

  • Impact of aquisition patterns on tree model estimation from UAV LiDAR

    In close collaboration with the 3DGeo Research Group, Moritz Bruggisser of the Department of Geodesy and Geoinformation (RG Photogrammetry) presented his current research progress on the impact of acquisition patterns on the robustness and accuracy of tree models derived from UAV LiDAR for forest dynamic studies. His work fits well into the scope of the…

  • Zusammen Wirken / Working Together: TdLab Geography

    In der aktuellen Ausgabe des Forschungsmagazins „Ruperto Carola“ haben Dr. Nicole Aeschbach und Dr. Kathrin Foshag einen Artikel zur Arbeit des TdLab Geographie am Geographischen Institut der Universität Heidelberg veröffentlicht. Unter dem Titel „Zusammen Wirken. Die große Transformation“ zeigen die Leiterin und die Postdoktorandin des TdLab auf, wie transdisziplinäre (td) Ansätze einen Beitrag zur wissenschaftlichen…