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GIScience Blog

Category: Software

  • GIScience/HeiGIT researchers and geography students with Pledge4Future web app official winners of the “The Climate Challenge Hackathon”

    Pledge4Future is a free web app for the calculation and visualisation of work-related per capita CO2e emissions in research. The aim is to provide individuals and work groups with a simple tool for the long-term reduction of greenhouse gas emissions towards compliance with the Paris Climate Agreement. The calculation includes heating, electricity, business travel and…

  • Online data viewer: Heidelberg’s tallest trees

    Two weeks ago, we conducted a field campaign in the frame of a 3DGeo Sensor Practical course to acquire 3D point clouds of Heidelberg’s tallest trees, Sequoias planted in the Arboretum I (see our blog post). Today, we present the prepared data in our new online point cloud viewer based on potree: https://3dweb.geog.uni-heidelberg.de/potree/scenes/sequoia.html A few…

  • M3C2-EP: Pushing the limits of 3D topographic point cloud change detection by error propagation

    In our efforts to improve change detection and quantification in time series of 3D point clouds, we have published yet another milestone. Our paper, titled M3C2-EP: Pushing the limits of 3D topographic point cloud change detection by error propagation, presents a novel method to better separate noise from actual change in point clouds sensed with…

  • OSM Changeset Analysis with Humstats and the ohsome Framework

    In this blog post we want to take a closer look at a fruitful mapping collaboration between humanitarian organizations and corporations. Since 2015 mapping remote areas in OSM  is one part in the cooperation between the leading savings, retirement and insurance company, Aviva, and the British Red Cross (BRC). By combining multiple datasets we analyzed…

  • ohsome region of the month: Which country has the longest coastline?

    The ohsome region of the month blog post series is back and since it’s summer this time we’re taking you to the coast. Before that happens, if this is your first blog post of this format you might want to take a look at former blog posts of this series for example one on railway networks or…

  • Monitoring OSM and Tasking Manager to Map 1 Billion

    In 2020, the Humanitarian OpenStreetMap Team (HOT) received funding from seven donors through TED’s Audacious Project. This has accelerated HOT’s ambition to map an area home to one billion people. HOT is working to add places at high risk of natural disaster or experiencing poverty to OpenStreetMap by significantly scaling-up support for local mapping communities.…

  • Ein Jahr WebApp „meinGrün“ – finale Befragung und Ergebnispräsentation

    Im Juni 2020 haben wir mit unseren Partnern aus dem meinGrün Projekt die gleichnamige WebApp gestartet. Nun sind die Nutzenden in Dresden und Heidelberg aufgerufen, sich ein letztes Mal an einer Befragung zu beteiligen und so Hinweise für die mögliche künftige Weiterentwicklung zu geben. Am 28. Juni werden wir zudem mit unseren Projektpartnern die Ergebnisse…

  • Openrouteservice for complex route optimization in new QGIS extension by Regionalverband Ruhr

    (Deutsche Version unten) The Regionalverband Ruhr (Team 9-2 Geodata Technology) has used the potential of HeiGIT’s openrouteservice (ORS) in a new QGIS extension and thereby created another possible application for the ORS: The tool “Location and Route Optimization of Addresses” allows to search and locate addresses and to find the optimal routes between them. This…

  • Methods and algorithms for 3D/4D change analysis and virtual laser scanning

    Curious, which methods on 3D/4D point cloud-based change analysis and virtual laser scanning we are working on, that might also be interesting for your research? Thanks to a redesign of our 3DGeo website you can now quickly get an overview of algorithms and methods, that are acitvely developed in our research and featured in recent…

  • Automatic building detection with ohsome2label and Tensorflow

    Accurate and complete geographic data of human settlement is crucial for humanitarian aid and disaster response. OpenStreetMap (OSM) can serve as a valuable source, especially for global south countries where buildings are largely unmapped. In a previous blog, we introduced our recent work in detecting OpenStreetMap missing buildings, so this time we will show you…

  • Becoming ohsome in R – analysis of the completeness of the road network and health sites in Jakarta

    Data quality is an important issue then performing analysis based on OpenStreetMap data. We have recently demonstrated how the effects of the 2013 flood in Jakarta on the accessibility of hospitals and clinics could be analyzed based on network analysis indicators and the isochrones functionality of the openrouteservice. As part of that analysis we analyzed…

  • The ohsome quality analyst goes public on Github with new release 0.3.0

    The ohsome quality analyst (short: OQT) has been introduced at the beginning of this year and today we are proud to announce two updates. First, we  released the new version 0.3.0 which includes new OSM layers and a brand new data quality report. Working on this release has been the first collaboration with MapAction under…