Chap.10 Intelligent Video Systems
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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 benefits.
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, significantly 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
significantly 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 efficient 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-painting
Defocusing
Redirecting
Blockage
Figure 10.3 Tamper detection
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