Automatic video monitoring system which selectively saves information
US7023469B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1999 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Jul 2, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/188
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system (10) for automatically monitoring an area includes a camera unit (12) having therein a video camera (23) and an image processing section (27). The image processing section saves a reference image from the video camera, compares subsequent images to the reference image, and detects and tracks change regions in the subsequent images. For each change region, the image processing section saves a path of movement of the change region, and a selected image of the change region. Selection is carried out so as to optimize the selected image, for example so that a detected person is facing and close to the video camera. The camera unit is network-ready (14), so that a remote workstation (13) can access the images and other information saved in the camera unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.