G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 7/40 (2006.01)
Patent
CA 2042591
- 17 - ABSTRACT Method and device for automatic image segmentation by textural analysis The device for automatic image segmentation according to the invention comprises a data processor associated with a network of automata organised in three levels; the inputs of each of the automata are weighted by adjustable coefficients; the number of automata of the first level is equal to the number of characteristic values computed from observation windows taken firstly in a set of examples of image zones having different textures: their learning by the network permits adjust- ment of the weighting coefficients of the automata of the network until all the examples of the same texture lead to the same configuration, characteristic of this tex- ture, output by the network. The segmenting of an image then consists, on the basis of sets of characteristic values computed on image zones to be analysed, in analysing the output of the network in order to deduce therefrom the texture of the zone. Application to the segmentation of aerial images or medical images, for example, and more generally to any type of image in which the regions are distinguishable through their texture. FIGURE 2
Burel Gilles
Catros Jean-Yves
Goudreau Gage Dubuc
Thomson-Csf
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