G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 17/10 (2006.01)
Patent
CA 2529044
The present invention relates to a method and a system for creating three- dimensional models of objects from sets of arbitrary three-dimensional entities obtained from target surfaces. It also provides an efficient method for individually refining the alignment of curves to improve the accuracy of the surface model with a linear complexity with respect to the number of curves. The principle behind the invention is that a set of three-dimensional entities, at their approximate positions, creates a field from which the surface can be extracted. The field is constructed in a manner such that the three-dimensional entities are attracted toward the extracted surface. This attraction is used to accurately register each three-dimensional entity with respect to extracted surface. Through iterations, both the field and the entity positions are refined.
L'invention concerne un procédé et un système pour la création de modèles 3D d'objets à partir de séries d'entités 3D arbitraires issues de surfaces cibles. L'invention concerne également un procédé efficace permettant d'affiner individuellement l'alignement des courbes pour améliorer la précision du modèle de surface avec une complexité linéaire par rapport au nombre de courbes. Le principe sous-jacent est qu'une série d'entités 3D, dans les positions approximatives de celles-ci, donne un champ à partir duquel on peut extraire la surface. Le champ est construit de manière à attirer les entités 3D vers la surface extraite. L'attraction permet d'enregistrer chaque entité 3D précisément par rapport à la surface extraite. Des itérations permettent d'affiner à la fois le champ et les positions d'entité.
Hebert Patrick
Laurendeau Denis
Tubic Dragan
Creaform Inc.
Fasken Martineau Dumoulin Llp
Universite Laval
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