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CROwdsourced and COmputational rephotoGRAPHY - accurately mapping images of the past on the buildings and landscapes of today - CroCoGraphy 2018

27 - 29 January, 2018 - Funchal, Madeira, Portugal

In conjunction with the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - VISIGRAPP 2018


Steven Verstockt
Ghent University - imec, IDLab
Brief Bio
Steven Verstockt received his Master degree in Informatics from Ghent University in 2003. Following up on his studies in applied informatics, he began teaching Multimedia courses at Hogeschool Gent and at the end of 2007, he started a PhD on video fire analysis at the IDLab of the Department of Electronics and Information Systems of Ghent University - imec (Belgium). Since 2012 he worked as a post-doctoral researcher in this lab. From October 2014, he is appointed a tenure track position at the same lab. Over the last years, his research group is getting involved in several sports-related projects/proposals to share their expertise on spatio-temporal data collection, filtering, classification, enrichment, mapping and visualization.
Vahur Puik
Estonian Photographic Heritage Society
Brief Bio
Vahur Puik has been working as photographer and then in several Estonian museums on positions related to exhibitions and photographic collections. As his academic background is cultural geography, he has been drawn to landscape issues in connection to both photography and museums. As a long time digital optimist he has been carefully following the global trends in digitising (photographic) heritage, participatory museum approach and crowdsourcing. Since the end of 2012, Vahur has been dedicated full time to developing – a gamified crowdsourcing platform for geotagging and rephotographing historic pictures. In spring 2015 he created a new participatory tagging app


Crowdsourced and computational rephotography is a multidisciplinary subject, dealing with a broad range of computer vision, metadata, semantics and VGI techniques to estimate the viewpoint of old photographs in today’s images of the world. Aligning a historical photograph in a modern rephotograph (or vice versa) can serve as a remarkable visualization of the passage of time and can be used across a plethora of application domains (e.g., tourism, media and GLAM sector). The workshop welcomes contributions to theories, design and evaluation of volunteered and automatic rephotography (or a combination of both) and will provide an interactive platform with presentation and discussion opportunities for novel research, work in progress, and more general 'open problems' in rephotography and related research domains.

Topics: Volunteered geographic information (VGI) and crowdsourcing rephotography Computer vision techniques for computational rephotography Semantic scene understanding Clustering of visually similar landscapes/scenes Architectural style/building type recognition Image geolocalization Geographic metadata enrichment and metadata-driven image analysis Computational efficient rephotography visualization techniques Visual Place Recognition in Changing Environments / Change invariant scene matching (Mobile) Imaging for Cultural Heritage Learning invariant places / image features


Paper Submission: November 7, 2017 (expired)
Authors Notification: November 21, 2017 (expired)
Camera Ready and Registration: November 29, 2017 (expired)


Ides Bauwens, Nostalgeo / Nazka Maps, Belgium
Azarakhsh Jalalvand, Ghent University - Internet and Data lab, Belgium
Olivier Janssens, Ghent University - Internet and Data lab, Belgium
Norman Kerle, University of Twente - ITC - Geoinformatics for Disaster Risk Management, Netherlands
Sébastien Lefèvre, Université Bretagne Sud, France
Aleksandra Pizurica, Ghent University - Statistical Image Modeling Lab, Belgium
Nico Van de Weghe, CartoGIS Cluster, Department of Geography, Ghent University, Belgium
Sofie Van Hoecke, Ghent University - imec, Belgium
Seth Van Hooland, Université libre de Bruxelles, Belgium
Peter Veelaert, Ghent University, Belgium


Prospective authors are invited to submit papers in any of the topics listed above.
Instructions for preparing the manuscript (in Word and Latex formats) are available at: Paper Templates
Please also check the Guidelines.
Papers must be submitted electronically via the web-based submission system using the appropriated button on this page.


After thorough reviewing by the workshop program committee, all accepted papers will be published in a special section of the conference proceedings book - under an ISBN reference and on digital support.
All papers presented at the conference venue will be available at the SCITEPRESS Digital Library (
SCITEPRESS is a member of CrossRef ( and every paper is given a DOI (Digital Object Identifier).


VISIGRAPP Workshops - CroCoGraphy 2018