Portable remote control device enabling three-dimensional user interaction with at least one appliance
US8773512B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable remote control device enables user interaction with an appliance by detecting user gestures made in a hover zone, and converting the gestures to commands that are wirelessly transmitted to the appliance. The remote control device includes at least two cameras whose intersecting FOVs define a three-dimensional hover zone within which user interactions are imaged. Separately and collectively image data is analyzed to identify a relatively few user landmarks. Substantially unambiguous correspondence is established between the same landmark on each acquired image, and a three-dimensional reconstruction is made in a common coordinate system. Preferably cameras are modeled to have characteristics of pinhole cameras, enabling rectified epipolar geometric analysis to facilitate more rapid disambiguation among potential landmark points. As a result processing overhead and latency times are substantially reduced. Landmark identification and position information is convertible into commands that alter the appliance behavior as intended by the user's gesture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.