Interactive projection with gesture recognition
US8491135B2 · kind B2 · utility
6Cited by
3References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Feb 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0425
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus determines a cursor position in an illumination field of a projector. An obstruction is detected in the illumination field. The cursor position is determined as the point on the obstruction furthest from where the obstruction crosses a border of the illumination field. A distance to the point on the obstruction is determined and compared to a distance to a point not on the obstruction. Gestures are recognized as a function of movement of the obstruction and the determined distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.