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Geotagging – knowing where your photos were
By Matt Jenner, on 20 January 2010
Geotagging photographs has become an increasingly important aspect of development work when distribution of and access to resources are at stake. While we can find a number of Internet-based applications (e.g. Google Earth, Panoramio, Flickr, etc) where to geo-locate images, offline solutions (hardware & software) are still to be made available or little known to many development practitioners.
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UCL Geotagged in Google Earth
This report summarises a series of available options. The first group lists GPS-enabled cameras. The second group offers devices which can be directly connected to cameras. The third group includes devices purposely developed to geotag photos, the last group refers to approaches that still work quite well in difficult environments and allow to add latitude, longitude and altitude data to photographs based on matching time stamps of GPS and camera.
source: PPGis.net
For more information on Geotagging have a look at the following links:
Geotag a photo with Google Earth : Geotagging Pictures – Picasa Help