Category: Publications
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Pairwise Line Labeling of Geographic Boundaries
We present an algorithm that labels linear features with two matched toponyms describing the left and the right side of a line, respectively. Such a pairwise line labeling is a common technique used in manually produced maps (see Figure 1). The lines differentiate administrative divisions or other geographic subdivisions. The proposed method can be used…
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Mapping Support Event for Nepal at ISCRAM conference 2015 in Norway
As members of the disastermappers heidelberg and the GIScience Research Group Benjamin Herfort and Melanie Eckle were presenting their research at this years ISCRAM conference in Kristiansand, Norway. ISCRAM being a conference for researchers and practitioners in the field of disaster and emergency management, they also used this situation to set up a spontaneous Mapping…
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Geo-reCAPTCHA: Crowdsourcing large amounts of geographic information from earth observation data
With the Geo-reCAPTCHA we present a new concept for crowdsourcing of vast amounts of geoinformation by micro-mapping tasks. The paper can be downloaded free of charge (until 22 May 2015). In our study we investigated the possibilities and limitations of capturing building footprints via Geo-reCAPTCHA based on remote sensing imagery. We could analyze more than…
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How to detect post-harvest growth from terrestrial LiDAR point clouds in precision agriculture? Read the new paper about comparative classification analysis
The new paper “Comparative classification analysis of post-harvest growth detection from terrestrial LiDAR point clouds in precision agriculture” has just been finally released in the ISPRS Journal of Photogrammetry and Remote Sensing. http://dx.doi.org/10.1016/j.isprsjprs.2015.03.003 Citation Koenig, K., Höfle, B., Hämmerle, M., Jarmer, T., Siegmann, B. & Lilienthal, H. (2015): Comparative classification analysis of post-harvest growth detection…
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How to combine OpenStreetMap and Airborne Laser Scanning data for updating Digital Elevation Models?
The answer can be found in our most recent paper “Updating Digital Elevation Models via Change Detection and Fusion of Human and Remote Sensor Data in Urban Environments” that has just been finally released in the International Journal of Digital Earth. You can find a preprint version of the article freely accessible here: http://koenigstuhl.geog.uni-heidelberg.de/publications/2015/Hoefle/Klonner_et_al_2015_preprint.pdf Citation…
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Our edited book “OpenStreetMap in GISciene: Experiences, Research, and Applications” is now Online and orderable.
Dear colleagues, I am pleased to inform you that a book edited by Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich entitled “OpenStreetMap in GISciene : Experiences, Research, and Applications” has been eventually published online and also in print format. The book contains 16 chapters on different aspects of OpenStreetMap in GIScience including 1) Data…
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2nd. Call for Papers: RICH-VGI Workshop @ AGILE 2015, Lisboa
2nd Call for Papers: Enriching VGI @ AGILE 2015 Workshop We call for papers for the Workshop: RICH-VGI: enRICHment of volunteered geographic information (VGI): Techniques, practices and current state of knowledge Workshop @ the 18th AGILE Conference on Geographic Information Science Lisboa, Portugal. Tuesday 9 June 2015 In recent years we have witnessed the rapid…
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Special Issue “Earth Observation and Geoinformation Technologies for Sustainable Development”
Dear Colleagues, Earth observation devices and geoinformation technologies, including remote sensing data, platforms, algorithms, geographic information science (GISc), and spatial analysis techniques have played a major role in monitoring the dynamics of our environment and landscape. Additionally, emerging active and passive sensing approaches, such as crowdsourcing, Volunteered Geographic Information (VGI), citizen science (CS), participatory sensing,…
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Modeling the evolution of OpenStreetMap with Cellular Automata using a new VGI Contribution Index
Major research efforts have so far dealt with OSM data quality analysis, but the modality of the evolution of OpenStreetMap (OSM) across space and time has been barely noted. Therefore, a new study by Jokar Arsanjani et al. that has recently been accepted for publication in Transactions in GIS aims to analyze spatio-temporal patterns of…
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Special Issue “GeoWeb 2.0” of ISPRS Journal of Geo-Information is Online
The special issue on “GeoWeb 2.0” of the ISPRS International Journal of Geo-Information with guest editors Alexander Zipf and Bernd Resch (both GIScience Research Group, Heidelberg University) is online and can be found here (Open Access). The special issue aims at exploring new trends in how the production and usage of geographic information are being…