Extraction of Environmental Data from On-Line Environmental Information Sources

Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 382)


Analysis of environmental information is considered of utmost importance for humans, since environmental conditions are strongly related to health issues and to a variety of everyday activities. Despite the fact that there are already many free on-line services providing environmental information, there are several cases, in which the presentation format complicates the extraction and processing of such data. A very characteristic example is the air quality forecasts, which are usually encoded in image maps of heterogeneous formats, while the initial (numerical) pollutant concentrations, calculated and predicted by a relevant model, remain unavailable. This work addresses the task of semi-automatic extraction of such information based on a template configuration tool, on methodologies for data reconstruction from images, as well as on Optical Character Recognition (OCR) techniques. The framework is tested with a number of air quality forecast heatmaps demonstrating satisfactory results.


Environmental air quality heatmap image processing OCR data reconstruction template configuration 


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Copyright information

© IFIP International Federation for Information Processing 2012

Authors and Affiliations

  1. 1.Informatics and Telematics InstituteCentre for Research and Technology HellasGreece
  2. 2.Informatics Systems and Applications GroupAristotle University of ThessalonikiGreece
  3. 3.System Technologies and Image ExploitationFraunhofer Institute of OptronicsGermany
  4. 4.Finnish Meteorological InstituteHelsinkiFinland

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