Analysis
Upgrade Analog Surveillance with HD and Analytics
Video surveillance today is in the midst of a paradigm shift. Gone are the days of security staff watching fuzzy images on closed circuit TV (CCTV). In their place, high-resolution Internet protocol (IP) cameras are improving video quality and enabling new applications like video content analysis (VCA). This shift is also driving the integration of security and surveillance into broader enterprise IT infrastructures, enabling new cost efficiencies. However, the large installed base of analog cameras presents a critical question: how can end-customers take advantage of digital technology while preserving their investments in analog cameras?
The Why Hybrid Surveillance?
Hybrid surveillance systems, with the capability to incorporate both IP and older analog cameras within one system, are experiencing strong adoption in the surveillance market. Such solutions allow end-users to:
Preserve existing investment in analog cameras while adding IP-based performance, intelligence and manageability
Digitize analog camera video streams for transmission across the IP network, remote access/viewing, data storage, and VCA
Provide a cost-effective transition path to a total IP video surveillance system as legacy equipment reaches end-of-life and is retired
One great advantage of IP video surveillance is that it provides a way for digital intelligence to replace security staff. VCA allows computer algorithms to intelligently monitor real-time video for unusual movements, crowd formation, people counting, license plate reading, left-behind objects, and much more. VCA can also be used to search recorded video for particular events.
To illustrate the advantages of a hybrid NVR, consider its utility for metropolitan police departments. As illustrated in Figure 1, police departments can use hybrid NVR systems to:
Manage and view both IP camera and digitized analog camera feeds across the city through a Central Management System (CMS)
Remotely view camera streams through whatever network-enabled device they’re using (even a smart phone) for more intelligent and appropriate response to incidents in progress
Simultaneously share with emergency response personnel the same video feed for better coordination
Receive email alerts on potential incidents that have been detected by VCA software
Have cameras read license plates and report on stolen vehicles or driver identity
Search stored video for particular incidents flagged by VCA software