Apparatus for non-contact 3D hand gesture recognition with code-based light sensing
US8830171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jan 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/017
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for non-contact 3D hand gesture recognition with code-based light sensing is provided, including a plurality of light emitters, at least a light sensor, and a controller, wherein the controller is connected to and controls the plurality of light emitters to emit lights containing a respective identification code. The emitted lights can be reflected by an object, for example, a hand in our application. The at least a light sensor can identify the original light emitter of each respective reflected light through the identification code as well as computing the power level of each respective reflected light to determine the distance or location of the object. The hand gesture recognition can be deduced based on the power levels of respective reflected lights over a time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.