foss4g2013 oldmapsonline-georeferencer
DESCRIPTION
foss4g 2013 nottinghamTRANSCRIPT
www.oldmapsonline.org
• Time and scale filters
• Full-text filter
• Ordered by similarity to query bounds
• Immediate feedback
• Data come from libraries and archives
• Approx. 130 000 maps now
• We link back to the original sites
www.mapranksearch.com
• Collection of records with their attributes
• Records must have geometries (WKT)
• Dublin Core inspired metadata
• Custom attributes
• Query by bounding box
• 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
• FastCGI application
• OpenSearch queries
• JSON results
• UI based on Google Closure Javascript Toolkit
• Google Maps, OpenLayers 3 or Leaflet
www.georeferencer.com
Georeferencer
• 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
• Users add GCPs and cutlines to maps
• Revision history is stored
• Quality control by reviewers
• 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
• Image servers as data sources
• ContentDM, IIP Image, Zoomify, ...
• Only thumbnails are stored
• Same metadata as in MapRank
Klokan Technologies [email protected]