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Photo Based Volunteered Geographic Information Initiatives: A Comparative Study of Their Suitability for Helping Quality Control of Corine Land Cover

Photo Based Volunteered Geographic Information Initiatives: A Comparative Study of Their Suitability for Helping Quality Control of Corine Land Cover
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Author(s): Jacinto Estima (Universidade Nova de Lisboa, Portugal)and Marco Painho (ISEGI-Universidade Nova de Lisboa, Portugal)
Copyright: 2019
Pages: 19
Source title: Geospatial Intelligence: Concepts, Methodologies, Tools, and Applications
Source Author(s)/Editor(s): Information Resources Management Association (USA)
DOI: 10.4018/978-1-5225-8054-6.ch048

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Abstract

Volunteered Geographic Information has become exponentially available over the Web in the last years. This availability can hide a vast geographical richness and provides us with both a great opportunity to explore new ways to use it and also big challenges related with its unstructured nature. This paper conducts a preliminary analysis of the adequacy of photos from the Flickr and Panoramio initiatives in order to use them as a source of field data in the quality control of the Land Use/Cover databases production. It evaluates its temporal and spatial distributions over Continental Portugal and also its distribution over Land Use/Cover classes using as a reference the European Corine Land Cover database. It concludes that this source is very valuable but needs to be combined with other sources due to its uneven spatial distribution.

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