Method and apparatus for calibrating an interactive touch system
US7372456B2 · kind B2 · utility
85Cited by
2References
64Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Apr 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of calibrating an interactive touch system includes moving a pointer along at least one path on a touch surface over a calibration image presented on the touch surface. Pointer coordinates are generated generally continuously during the tracing representing pointer contact locations on the touch surface. The coordinate system of the touch surface is mapped to the coordinate system of the calibration image using the pointer coordinates and the calibration image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.