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Singularities of principal direction fields from 3-D images

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2 Author(s)
Sander, P.T. ; Inst. Nat. de Recherche en Inf. et en Autom., Valbonne, France ; Zucker, S.W.

Generic singularities can provide position-independent information about the qualitative shape of surfaces. The authors determine the singularities of the principal direction fields of a surface (its umbilic points) from a computation of the index of the fields. The authors present examples both for 3-D synthetic images to which noise has been added and for clinical magnetic resonance images

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Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:14 ,  Issue: 3 )