System and method for selectively obscuring a video signal
US6727935B1 · kind B1 · utility
51Cited by
4References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jun 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An object may be identified with a camera that is sensitive to both visible and invisible light. The camera receives a target of invisible light, either from an invisible light illuminator attached to the object, or via radiation from the object itself. The system processes the invisible light to position and size a halo with respect to the location of the object. The type of halo used may be determined by user selection. The system then modifies the visible component of the video signal from the camera to obscure the portion that lies outside the halo, thereby concealing the surroundings of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.