Coastline Matching Process Based on the Discrete Fréchet Distance

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Abstract

Spatial distances are the main tools used for data matching and control quality. This paper describes new measures adapted to sinuous lines to compute the maximal and average discrepancy: Discrete Fréchet distance and Discrete Average Fréchet distance. Afterwards, a global process is defined to automatically handle two sets of lines. The usefulness of these distances is tested, with a comparison of coastlines. The validation is done with the computation of three sets of coastlines, obtained respectively from SPOT 5 orthophotographs and GPS points. Finally, an extension to Digital Elevation Model is presented.