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Multiresolution segmentation of natural images: from linear to nonlinear scale-space representations

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3 Author(s)
Petrovic, A. ; Signal Process. Inst., Swiss Fed. Inst. of Technol., Lausanne, Switzerland ; Escoda, O.D. ; Vandergheynst, P.

In this paper, we introduce a framework that merges classical ideas borrowed from scale-space and multiresolution segmentation with nonlinear partial differential equations. A nonlinear scale-space stack is constructed by means of an appropriate diffusion equation. This stack is analyzed and a tree of coherent segments is constructed based on relationships between different scale layers. Pruning this tree proves to be a very efficient tool for unsupervised segmentation of different classes of images (e.g., natural, medical, etc.). This technique is light on the computational point of view and can be extended to nonscalar data in a straightforward manner.

Published in:

Image Processing, IEEE Transactions on  (Volume:13 ,  Issue: 8 )

Date of Publication:

Aug. 2004

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