Geodesic Saliency of Watershed Contours and Hierarchical Segmentation
Schmitt, Michel; Najman, Laurent (1996), Geodesic Saliency of Watershed Contours and Hierarchical Segmentation, IEEE Transactions on Pattern Analysis and Machine Intelligence, 18, 12, p. 1163-1173. http://dx.doi.org/10.1109/34.546254
Type
Article accepté pour publication ou publiéExternal document link
http://hal-upec-upem.archives-ouvertes.fr/hal-00622128Date
1996Journal name
IEEE Transactions on Pattern Analysis and Machine IntelligenceVolume
18Number
12Publisher
IEEE
Pages
1163-1173
Publication identifier
Metadata
Show full item recordAbstract (EN)
The watershed is one of the latest segmentation tools developed in mathematical morphology. In order to prevent its oversegmentation, the notion of dynamics of a minimum, based on geodesic reconstruction, has been proposed. In this paper, we extend the notion of dynamics to the contour arcs. This notion acts as a measure of the saliency of the contour. Contrary to the dynamics of minima, our concept reflects the extension and shape of the corresponding object in the image. This representation is also much more natural, because it is expressed in terms of partitions of the plane, i.e., segmentations. A hierarchical segmentation process is then derived, which gives a compact description of the image, containing all the segmentations one can obtain by the notion of dynamics, by means of a simple thresholding. Finally, efficient algorithms for computing the geodesic reconstruction as well as the dynamics of contours are presented.Subjects / Keywords
watershed; morphological segmentation; dynamics; hierarchical segmentation; geodesic reconstructionRelated items
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