Several
hardware-only appliances that are also comprised of integrated functions and
cameras are probably one of the most unified function product examples of all.
Just from our Web site listing of manufacturer partners, we can select from
cameras that have built-in hard disk drives; pan/tilt/zoom, day/night and
weatherproof capabilities; scene change detection; auto tracking; network
interfaces, SD memory card slots for backup recording, high speed dome cameras
complete with auto tracking and motion detection, to name only a few. These
embedded features are more commonly known as IVS (intelligent video
surveillance) and are a direct result of digital technology. Their main
advantage is that by analyzing images at the camera before they are compressed,
server workload at the backend can be significantly reduced, false alarms can
be minimized and the backend can theoretically accommodate more cameras.