Generating position information using a video camera
US8587520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0346
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some implementations provide techniques and arrangements to receive image information. A plurality of reference fields of a user-manipulated device may be identified. Each reference field of the plurality of reference fields may include reference elements. The plurality of reference fields may be identified based on colors of the reference elements, shapes of the reference elements, and/or a pattern of the reference elements. Some implementations may generate position information based on the plurality of reference fields. The position information may identify a position of the user-manipulated device relative to the video camera. Some implementations may provide the position information to an application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.