Method of three-dimensional measurements by stereo-correlation using a parametric representation of the measured object
US9733071B2 · kind B2 · utility
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Inventors
Key dates
| Filing date | May 24, 2013 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Dec 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/85
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In the field of methods of three-dimensional measurement of an object by stereo-correlation, methods require at least two cameras connected to image processing means. These methods include at least a first step of calibration of the two image planes and a second step of spatial matching between these two image planes. These two steps can be followed by a third step of temporal matching. The method provided requires objects, the surface of which has a parametric representation, i.e. a mathematical representation of the object surface having the form of a decomposition over a scalar function basis. The parametric representation is implemented during the first calibration step and/or during the second and third steps of spatial or temporal matching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.