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The Special Issue: Volunteered Geographic Information (VGI) - Analytics ( Vol 20, Issue 3) has been published by Taylor & Francis in the Open Access Journal Geo-Spatial Information Science (GSIS) - celebrating the journal`s 20th anniversary.
Guest Editors: Peter Mooney, Alexander Zipf, Jamal Jokar Arsanjani, and Hartwig H. Hochmair
http://www.tandfonline.com/toc/tgsi20/20/3?nav=tocList
GSIS is now indexed in the Emerging Sources [...]

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Recently the full Special Issue “Online Participation” of the German journal “HMD Praxis der Wirtschaftsinformatik” has been published online by Springer.
It also includes our invited overview article about online participation in the context of geographic information, especially OpenStreetMap (in German). It is available open access:
Griesbaum, L., Eckle, M., Herfort, B., Raifer, M., Zipf, A. (2017): [...]

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The EU H2020 project LandSense (A Citizen Observatory and Innovation Marketplace for Land Use and Land Cover Monitoring) has been featured as project of the week by “Doing It Together Science“.
http://togetherscience.eu/blog/project-of-the-week-10-landsense. Thanks to our partners at IASA etc. for this!
In addition to organizing mapathons and related research research activities, in the context of the project [...]

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The comprehension of folksonomies is of high importance when making sense of Volunteered Geographic Information (VGI), in particular in the case of OpenStreetMap (OSM). So far, only little research has been conducted to understand the role and the evolution of folksonomies in VGI and OSM, which is despite the fact that without a comprehension of [...]

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In a recently published study (1), we produced a web based land use land cover (LULC) product based on OSM tags which are constantly updated by contributors/volunteers, and present a Remote Sensing based solution when tags were absent for a test site. We harness the combined benefit of an open source and ever-growing machine generated [...]

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Last week (Sept. 18-22, 2017), our six colleagues, Prof. Alexander Zipf, Doctoral Candidate Xuke Hu, Dr. Hongchao Fan, Dr. Martin Hämmerle, Dr. Zhiyong Wang, and Dr. Wei Huang, participated in the ISPRS Geospatial Week 2017 held in Wuhan, China.

In the opening ceremony on Sept. 18, 2017, the U.V. Helava Award was presented to [...]

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We are currently guest-editing a special issue on “urban geoinformatics” in the Taylor & Francis journal “Geo-Spatial Information Science”. On this occasion, we’d like to encourage you to submit your crowdsourcing-related work emphasizing urban issues:
Title: Crowdsourcing for Urban Geoinformatics
Deadline: 30 October 2017
Guest editors:
Hongchao Fan, Wuhan University, (hongchao.fan@whu.edu.cn)
João Porto de Albuquerque, University of Warwick, (J.Porto@warwick.ac.uk)
René Westerholt, [...]

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The 3D spatial data processing group had the opportunity to collaborate with the team of Prof. Tzu-Ping Lin from National Cheng Kung University, Tainan, Taiwan, within the frame of a study dealing with carbon emission reduction measures in urban environments.
One option of reducing carbon emission by buildings is to install photovoltaic (PV) panels in [...]

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In our recently published study “Direct local building inundation depth determination in 3-D point clouds from user-generated flood images” we present a new approach for deriving local building inundation depth from ordinary user-generated flood images captured during a flood event. After reconstructing a 3-D scene of the building of interest with close-range photogrammetry (CRP) algorithms, [...]

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To take bathymetric measurements in areas with shallow water is very challenging for methods such as SONAR or bathymetric LiDAR. In our study “Assessing the Potential of a Low-Cost 3-D Sensor in Shallow-Water Bathymetry”, we examine the performance of a low-cost 3D camera when capturing bathymetry in waters up to 0.4 m depth.
The tested measurement [...]

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