Automatic pivoting in a wide-angle video camera
US8860780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/698
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for automatically rotating a view of a wide-angle video camera. Preferred embodiments include automatic rotating of a stereographically projected view using a transformation engine which is capable of extracting a plurality of views under a remote pan tilt zoom (PTZ) control. In one example embodiment, when the center point of a video image of a selected view or region of interest is tilted through a direction which is perpendicular to the plane of the camera mounting (i.e., vertical when the camera is mounted on a ceiling) then the output image is automatically rotated 180 degrees about the pan axis. In preferred embodiments, the control circuitry then temporarily reverses interpretation of the tilt axis controls (for example, from PTZ controls), thereby allowing the view to tilt uninterrupted in the same direction past the auto-pivoting point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.