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Geo-reCAPTCHA: Crowdsourcing large amounts of geographic information from earth observation data.
Florian Hillen
Bernhard Höfle
Published in:
Int. J. Appl. Earth Obs. Geoinformation (2015)
Keyphrases
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geographic information
data analysis
spatial data
database
data collection
earth observation
raw data
data structure
image data
sensor data
data sources
data processing
data center
data objects
data quality
geographic information systems
remote sensing data
high quality