Abstract In this work a technique for cloud detection and classification from MSG–SEVIRI (Meteosat Second Generation–Spinning Enhanced Visible and Infra-red Imager) imagery is presented. It is based on the segmentation of the multispectral images using order-invariant watershed algorithms, which are applied to the corresponding gradient images, computed by a multi-dimensional morphological operator. To reduce the over-segmentation produced by the watershed method, a RAG (Region Adjacency Graph) based region merging technique is applied, using region dissimilarity functions. Once the objects present in the image have been segmented, they are classified using a multi-threshold method based on physical considerations that takes into account the statistical parameters inside each region.
Watershed image segmentation and cloud classification from multispectral MSG–SEVIRI imagery
Advances in Space Research ; 49 , 1 ; 135-142
2011-09-23
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Watershed image segmentation and cloud classification from multispectral MSG–SEVIRI imagery
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