Video camera apparatus with compression system responsive to video camera adjustment
US5926209A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1995 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/695
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video camera apparatus and a video surveillance system having a video camera are provided with a video compression unit which utilizes quantization for spatial processing and motion vectors for temporal processing. The camera apparatus and surveillance system include a camera with an adjustment mechanism which allows panning, tiring, zooming and focusing of the camera. The adjustment mechanism has a device for generating adjustment indication signals which indicate the state of adjustment of the camera. The adjustment indication signals are generated by a remote control panel or by means of transducers which detect the state of panning, tilting, zooming or focusing. A processor generates an instruction to the compression unit to adjust the degree of compression processing by video compression unit in response to the adjustment indication signals. Spatial or temporal processing are traded off, depending on whether the adjustment indication signals indicate movement of the camera or zooming or focusing of the lens. The video surveillance system has a camera station containing a video camera, a compression unit and a line interface to allow the camera station to be connected to a mo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.