Category: Publications
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The impact of recent gully filling practices on wheat yield at the Campiña landscape in Southern Spain
The significance of gully filling practices on agricultural production has been only rarely evaluated in literature. In this study, a medium-sized catchment was selected, for being representative of the conventional farming practices on annual crops in the Campiña landscape in Southern Spain. During two wheat campaigns, an analysis of the spatial and temporal evolution of…
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Deriving indicators for Points of Interest and analyzing mixed activities in urban areas
We are pleased that our research paper “Deriving indicators for Points of Interest and analyzing mixed activities in urban areas” (Ullah, Lautenbach, Zipf 2021) has been accepted at the 12th International Symposium on the Digital Earth (ISDE) scheduled within the GI Week 2021 in Salzburg. The conference will take place from July 5th to July…
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LOKI at vEGU 2021 on 26 and 29 April
Join us and many European researchers from the Earth, planetary and space sciences in the virtual European Geosciences Union (EGU) assembly from 19 to 30 April 2021! Are you interested in innovative methods and concepts applied to natural hazards? Then join our 2-minute talks on research within the LOKI project on Monday, 26 April, and…
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Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions
Public urban green spaces are important for the urban quality of life. Still, comprehensive open data sets on urban green spaces are not available for most cities. As open and globally available data sets, the potential of Sentinel-2 satellite imagery and OpenStreetMap (OSM) data for urban green space mapping is high but limited due to…
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New publication on the Impact of Community Happenings in OpenStreetMap
Online knowledge projects such as OpenStreetMap (OSM) and Wikipedia have gained high importance, trust and even economic value. These projects and their content are maintained and enhanced by online communities that evolve around them. Yet, these communities and their members are often ignored when the respective data or knowledge is used. In a recent publication…
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New paper published about the OSM Sketch Map Tool
The Sketch Map Tool supports participatory mapping approaches and risk communication. An new paper presents the different functionalities of the tool. OSM data quality can be evaluated regarding the fitness for the sketch-map-approach. Based on the great idea of Field Papers, paper maps can be printed out for the use in the field, and afterwards,…
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Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning
Determining the location of a building’s entrance is crucial to location-based services, such as wayfinding for pedestrians. Unfortunately, entrance information is often missing from current mainstream map providers. Frequently, automatic approaches for detecting building entrances are based on street-level images that are not widely available. To address this issue, in a recently published paper in…
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Fully automatic spatiotemporal segmentation of 3D LiDAR time series for the extraction of natural surface changes
When and where do changes occur in dynamic natural landscapes? A new method has been published that enables the automatic extraction of surface changes from entire time series of 3D point clouds. The developed method of spatiotemporal segmentation extracts changes regarding their surface change history, which makes it particularly useful for natural scenes that are…
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The evolution of humanitarian mapping within the OpenStreetMap community
In the past 10 years, the collaborative maps of OpenStreetMap (OSM) have been used to support humanitarian efforts around the world as well as to fill important data gaps for implementing major development frameworks such as the Sustainable Development Goals (SDGs). In a recently accepted paper we provide a comprehensive assessment of the evolution of…
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HELIOS++ 1.0.0 Software & Preprint Release
The 3DGeo Research Group is proud to announce the release of their novel ray-tracing based laser scanning simulator HELIOS++! HELIOS++ is a general-purpose simulation software for virtual laser scanning data acquisition. Such data can be used to complement real data in many use cases. Some examples include the generation of training data for machine learning,…
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Erstes Handbuch zur Veranstaltung von Mapathons im Deutschen Roten Kreuz
Das Handbuch zur Veranstaltung von Mapathons im Deutschen Roten Kreuz (DRK) ist da! In dem Handbuch wird beschrieben, was bei der Durchführung eines Mapathon zu beachten ist. Es beginnt mit der Frage, was überhaupt ein Mapathon ist und erklärt warum und wie durch die Durchführung von regelmäßigen Mapathons z.B. im Rahmen von Bereitschaftsabenden, wichtige Geodaten…
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4D change analysis for improving our understanding of dynamic landscapes
Time series of topographic point clouds offer great possibilities to advance our understanding of dynamic landscapes. To exploit the full information these 4D datasets contain on spatial and temporal properties of natural surface changes, the 3DGeo research group is developing methods for 4D change analysis. These methods are required to answer fundamental questions on the…