NETWORK VIDEO SURVEILLANCE SYSTEM AND RECORDER

摘要

A video surveillance method and system controls and distributes video signals from multiple surveillance cameras to multiple video clients by receiving a single original video signal stream from a camera and simultaneously converting it a plurality of video streams, with each video stream having a different video quality parameter. The different quality parameters may be different resolutions, degrees of compression, different frame rates, presence or absence of colors, intensity of colors, different contrast levels and different brightness levels. The video clients are entitled to access specified video quality parameters, and are simultaneously sent the converted video streams with the different video quality parameter to which they are entitled to access.