Determining position in a projection capture system
US8896688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Apr 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0425
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one example, a projection capture system includes: a visible light projector to project a pattern on to a surface of a GUI control object placed on or above a work surface; a visible light camera to capture an image of the pattern projected on to the surface of the control object; and a controller operatively connected to the projector and the camera. Programming on the controller determines (1) a lateral position of the pattern relative to a reference position associated with the work surface based on the pattern image captured by the camera and (2) a height of the pattern above the work surface based on the lateral position of the pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.