Television – Special applications – Observation of or from a specific location
Patent
1995-04-14
1999-07-20
Rao, Anand S.
Television
Special applications
Observation of or from a specific location
348416, 348405, 348211, 348153, 348699, H04N 718
Patent
active
059262095
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 monitoring station via a communication channel. The monitoring station has a control panel, a decompression unit and a line interface. Control signals including adjustment indication signals are generated at the control panel and transmitted to the camera station via the communication channel. Compressed video signals are received by the monitoring station for decompression and display.
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Rao Anand S.
Sensormatic Electronics Corporation
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