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Description

Results

Publications

 Description 

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3D morphing

Given two shapes, an axis is defined inside each shape. This axis is used to guide the transformation. As the definition of an axis can be a complex task, we have developped a method to compute an axis inside a polyhedral shape.

Skeletal curves

Skeletal curves are constructed from a set of scattered data points lying on a surface. These curves may have a tree like structure to capture branching shapes. They can be used for different applications ranging from surface reconstruction to object recognition.
To build this curves, we have extended the method computing an axis inside a polyhedral shape to the case of shapes described by a set of unorganized points.

 Results 

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3D morphing

Transformation (213 kb) of a piano into the Beethoven's head.
Transformation (213 kb) of a face into a swan.

Skeletal curves

Blood vessels (1).
Blood vessels (2).
Femur.
Colon.
Colon (another viewpoint).
Man.
Aorta (3 different source points).
Aorta (another viewpoint).
Helicoidal surface.
Double torus (animation 585 ko)
Cow (animation 1048 ko)

 Publications 

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F. Lazarus and A. Verroust. Feature-based shape transformation for polyhedral objects. In Fifth Eurographics Workshop on Animation and Simulation. Oslo, Norway, September 1994. [pdf]
F. Lazarus and A. Verroust. Décomposition cylindrique de polyèdre et courbe squelette. In Revue Internationale de CFAO et d'Infographie. Vol.11, No 4, November 1996 (In French).
F. Lazarus and A. Verroust. Metamorphosis of Cylinder-like Objects. In The Journal of Visualization and Computer Animation. Vol. 8, No 3, pp 131-146, 1997.
A. Verroust and F. Lazarus. Extracting Skeletal Curves from 3D Scattered Data. In Rapport de Recherche INRIA no 3250. September 1997. RR-3250.ps.gz
F. Lazarus and A. Verroust. 3D Metamorphosis : a Survey. In The Visual Computer . Vol. 14, No 8-9, 1998.    (draft version)

F. Lazarus and A. Verroust. Level Set Diagrams of Polyhedral Objects. In Rapport de Recherche INRIA no 3546. November 1998.
A. Verroust and F. Lazarus. Extracting Skeletal Curves from 3D Scattered Data. In Shape Modeling International '99. Aizu, Japan, March 1999. [pdf]
F. Lazarus and A. Verroust. Level Set Diagrams of Polyhedral Objects. In Solid Modeling and Applications 1999. Ann Arbour, June 1999. [pdf]

A. Verroust and F. Lazarus. Extracting Skeletal Curves from 3D Scattered Data. In  The Visual Computer . Vol 16. No 1, pp 15-25. 2000.

Contact 

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