Portal de Periódicos da CAPES

Photo Based Volunteered Geographic Information Initiatives

2014; IGI Global; Volume: 5; Issue: 3 Linguagem: Inglês

10.4018/ijaeis.2014070105

1947-3206

Jacinto Estima, Marco Paìnho,

Human Mobility and Location-Based Analysis

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.