Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2011-03-22
2011-03-22
Nghiem, Michael P (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
C356S603000, C382S285000
Reexamination Certificate
active
07912673
ABSTRACT:
A system, apparatus and method for three-dimensional scanning and digitization of the surface geometry of objects are claimed. The system includes a hand-held apparatus that is auto-referenced. The system is auto-referenced since it does not need any positioning device to provide the 6 degree of freedom transformations that are necessary to integrate 3D measurements in a global coordinate system while the apparatus is manipulated to scan the surface. The system continuously calculates its own position and orientation from observation while scanning the surface geometry of an object. To do so, the system exploits a triangulation principle and integrates an apparatus that captures both surface points originating from the reflection of a projected laser pattern on an object's surface and 2D positioning features originating from the observation of target positioning features.
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Hebert Patrick
Saint-Pierre Éric
Tubic Dragan
Creaform Inc.
Fasken Martineau
Le Toan M
Nghiem Michael P
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