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Foss4g2013 oldmapsonline-georeferencer

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foss4g 2013 nottingham

foss4g 2013 nottingham

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  • 1. Old Maps Online and Georeferencer Václav Klusák (vaclav.klusak@klokantech.com)
  • 2. www.oldmapsonline.org
  • 3. • Time and scale filters • Full-text filter • Ordered by similarity to query bounds • Immediate feedback
  • 4. • Data come from libraries and archives • Approx. 130 000 maps now • We link back to the original sites
  • 5. www.mapranksearch.com
  • 6. • Collection of records with their attributes • Records must have geometries (WKT) • Dublin Core inspired metadata • Custom attributes • Query by bounding box
  • 7. • Optimized for fast frequent searches and infrequent batched updates • Read-only • Machine-dependent file format • WAH compressed bitmap indices • Response time independent from query bounds
  • 8. • FastCGI application • OpenSearch queries • JSON results • UI based on Google Closure Javascript Toolkit • Google Maps, OpenLayers 3 or Leaflet
  • 9. Georeferencer www.georeferencer.com
  • 10. • Geared towards libraries and archives • Enables them to georeference large collections of digitized maps by crowdsourcing the effort • Rewards users with attractive vizualizations • Development sponsored by Moravian Library
  • 11. • Users add GCPs and cutlines to maps • Revision history is stored • Quality control by reviewers
  • 12. • Google Maps, WMS and WMTS overlays • 3D view with Google Earth • Accuracy analysis with MapAnalyst • MARC 034 • gdal_georeferencer.py • Linked data annotations in development
  • 13. http://www.georeferencer.com/
  • 14. • Image servers as data sources • ContentDM, IIP Image, Zoomify, ... • Only thumbnails are stored • Same metadata as in MapRank
  • 15. Klokan Technologies GmbH info@klokantech.com

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