[Insight-users] Re: active contour : Active Shape Models

[Luis Ibanez]

Hi Gopal,

Active Shape models can be implemented in different ways.

You will find a LevelSet based implementation of ASM in ITK.

These classes were implemented by Lydia Ng and Sayan Spathak
at Insightful, based on the paper:

  Leventon, M.E. et al,
  "Statistical Shape Influence in Geodesic Active Contours"
  CVPR 2000


The classes that you may want to look at are:

http://www . itk . org/Insight/Doxygen/html/classitk_1_1ImagePCAShapeModelEstimator . html
http://www . itk . org/Insight/Doxygen/html/classitk_1_1PCAShapeSignedDistanceFunction . html
http://www . itk . org/Insight/Doxygen/html/classitk_1_1ShapePriorMAPCostFunction . html
http://www . itk . org/Insight/Doxygen/html/classitk_1_1ShapePriorSegmentationLevelSetFunction . html
http://www . itk . org/Insight/Doxygen/html/classitk_1_1ShapePriorSegmentationLevelSetImageFilter . html
http://www . itk . org/Insight/Doxygen/html/classitk_1_1GeodesicActiveContourShapePriorLevelSetImageFilter . html


you will find a report on this classes in the InsightDocuments checkout

   InsightDocuments/Developer/Administrative/
                                Meetings/BethesdaSeptember2003

in the file

    Active Shape Models_itk.ppt


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Please let us know if you have further questions.



   Thanks



     Luis




---------------------
gopal krishnan wrote:
> HIe Luis,
>  
> I am facing 
> problems with the implementation of ASM. I am trying to apply ASM to 
> detect the movements of eyes but I am having problems with it. I have 
> binarized the input training image suing Canny edge detector. Now i am 
> trying to apply ASM to it. Do u have ne idea on how to do this?
>  
> Your help is very much appreciated. thanks a lot.
>  
> Gopal 
> 
>