Acquiring centimetre-accurate camera coordinates in project INDIGO

INDIGO is a two-year, ÖAW-funded research project that aims to document, disseminate and analyse the graffiti-scape along Vienna's Donaukanal. INDIGO's prime data are digital photos because they capture the geometrical, spectral, and certain temporal aspects of newly created graffiti. To speed up their archiving and photogrammetric processing, INDIGO developed a compact piece of hardware that sits on top of the camera to record centimetre-accurate camera coordinates for each photo. This poster details the hard- and software of our cost-effective geocoding solution.