Video system for three dimensional imaging and photogrammetry
US6414708B1 · kind B1 · utility
99Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1998 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Feb 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/246
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video system for providing an operator with a three dimensional stereoscopic image of the oral cavity of a patient is provided. The system includes an imaging unit for providing at least two stereoscopic images of the oral cavity, a pair of switchable shutters for alternatingly blocking the view of the left eye and the right eye of the operator, a synchronizing unit for synchronizing the switching of the pair of switchable shutters with the rate of generation of the two stereoscopic video images by the imaging unit and a video display for displaying the two stereoscopic images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.