Super‐resolution mapping of the waterline from remotely sensed data

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Methods for mapping the waterline at a subpixel scale from a soft image classification of remotely sensed data are evaluated. Unlike approaches based on hard classification, these methods allow the waterline to run through rather than between image pixels and so have the potential to derive accurate and realistic representations of the waterline from imagery with relatively large pixels. The most accurate predictions of waterline location were made from a geostatistical approach applied to the output of a soft classification (RMSE = 2.25 m) which satisfied the standards for mapping at 1 : 5000 scale from imagery with a 20 m spatial resolution.

Document Type: Research Article


Affiliations: School of Geography, University of Southampton, Highfield, Southampton, SO17 1BJ, UK

Publication date: December 1, 2005

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