Vivotek NR7401 User Manual download pdf (Page 68)

Chap.10 Intelligent Video Systems

10.3 Advantages of Distributed Architecture

Since a distributed intelligent video system has video content analyzed by the front-end cameras, it offers the

followingbenets.

Real-time Analysis and Response

Because captured images are analyzed in real time at the camera side, unusual activities can be detected

immediately. This allows for prompt response such as notifying security staff.

Reduced Labor Costs

Anintelligentvideosystem canconstantlyconcentratedonanalyzing andprocessingdata,signicantlyreducing

the number of security staff and the travel costs resulting from on-site maintenance.

Decrease in Server Workload, Storage Space and Bandwidth Usage

Because only event relevant and needed information is transmitted to the back-end system, server workload is

signicantlyreduced. It also cuts down bandwidth usage and storage requirements.

Scalability and Integration

Intelligent video systems can be integrated with other systems to serve purposes beyond security, such as in

combinationwithaccesscontrol systemformoreefciententrance managementorwithretailPOSsystemsto

provide customer information. Further, during expansion, users can simply add new intelligent cameras at the front

end without needing to upgrade the back-end system for stronger processing capability.

10.4 Detection

10.4.1 Tamper Detection

Tamper detection can detect and respond when the camera is redirected, defocused, blocked or spray-printed. It

allows cameras to be installed in tampering-prone places such as transportation stations or prisons.

Spray-paintingDefocusing

RedirectingBlockage

Figure 10.3 Tamper detection

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Vivotek NR7401 User Manual Page 68