Registration of a fiducial marker for an augmented reality system
US11980507B2 · kind B2 · utility
12Cited by
718References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3995
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A registration marker (40), consisting of a radiotransparent substrate (44) and a pattern (58) formed in at least two dimensions, which is disposed on the substrate and is optically visible. The registration marker also has a multiplicity of radiopaque elements (60), which are disposed in the substrate and are spatially arranged in at least two dimensions to provide a unique pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.