P={P₁,..,P_n}

        

 

2 Particular case of range images
                   (University of South Florida)
 
 

3 Structuration of the data
                  (Neighborhood relationship)

4 Surface local descriptors

    --> characterization of local putative boundary features
 
 

3 Segmentation of P into significant parts of the object

     --> Problem of local organisation
     --> No constraining model for the regions
 
 

4 Extremal Escarpment Trees

6 First merging step - Enhancement of natural boundaries
 
 

7 Hysteresis process - further merging step
 
 

9 Steps by steps on a simple example

 (With contraction ...)
 
 

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