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Article

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ID: <

oai:doaj.org/article:a1e30e7021f54d109d1b9ea19306db2c

>

·

DOI: <

10.4000/cybergeo.8002

>

Where these data come from
Determination of a large shore line using the hierarchical multi resolution on an RSO image

Abstract

The goal of this study is to evaluate the coastline length on a series of images reduced by the hierarchical multiresolution technique and extracted from a synthetic aperture radar image (SAR) of theERS-1 satellite, of very great size. In this study, the edge detection technique and the mathematical morphology are joined to the multiresolution technique to reach the targeted goal. The obtained results on the reduced images are then extrapolated in order to obtain the coastline length on the original image. The presented methodology allows getting good estimations of coastline lengths from great size satellite images, and it is particularly useful to the follow-up of the coast erosion process.

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