Measuring the location of objects arranged on a surface, using multi-camera photogrammetry
US7190826B2 · kind B2 · utility
18Cited by
13References
1Claims
0Family size
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Key dates
| Filing date | Sep 16, 2003 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/596
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for measuring the location of objects arranged on a convex surface. A plurality of cameras is arranged in a stationary array about the surface, and is used to capture images of the objects. A parameterized model of the surface is developed using optimization techniques, and then the locations of the objects are established by triangulation. The method is applied to location of electrophysiological sensors on the head, for purposes of electroencephalographic source analysis, or for registration with other imaging modalities such as MRI (magnetic resonance imaging).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.