Positioning system and method
US10094651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | May 7, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/309
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positioning system, in particular, six-dimensions positioning system of a shadow sensor with respect to a constellation of light sources is provided. The sensor can be a shadow sensor and has a mask and a 2D imager. By recording the shadow of the mask cast by each light source on the imager, and by properly multiplexing the light sources, the system can compute the 6D position of the shadow sensor with respect to the constellation of light sources. This computation is based, in part, on treating the shadow of the mask cast on the imager as the equivalent of the projection of light in a pinhole or projective camera. In one embodiment, the system is applied in a surgical domain. In another embodiment, the system is rapidly deployed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.