Auto-referenced system and apparatus for three-dimensional scanning
US7912673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2006 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | May 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/521
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.