G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 11/25 (2006.01) G01B 11/245 (2006.01)
Patent
CA 2731680
There are provided sys-tems and methods for obtaining a three--dimensional surface geometric charac-teristic and/or texture characteristic of an object. A pattern is projected on a surface of said object. A basic 2D image of said object is acquired; a characteris-tic 2D image of said object is acquired; 2D surface points are extracted from said basic 2D image, from a reflection of said projected pattern on said object; a set of 3D surface points is calculated in a sensor coordinate system using said 2D surface points; and a set of 2D sur-face geometric/texture characteristics is extracted.
L'invention concerne des systèmes et des procédés pour obtenir une caractéristique géométrique de surface tridimensionnelle et/ou une caractéristique de texture d'un objet. Un modèle est projeté sur une surface dudit objet. Une image 2D basique dudit objet est acquise; une image 2D caractéristique dudit objet est acquise; des points de surface 2D sont extraits de ladite image 2D basique, à partir d'une réflexion dudit modèle projeté sur ledit objet; un ensemble de points de surface 3D est calculé dans un système de coordonnées de capteur au moyen des points de surface 2D; et un ensemble de caractéristiques géométriques de surface 2D/de texture est extrait.
Dragan Tubic
Hebert Patrick
Saint-Pierre Eric
Creaform Inc.
Fasken Martineau Dumoulin Llp
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