VIDEO ANALYTICS:
FROM ACCESS CONTROL TO BEHAVIOUR DETECTION AND BEYOND
Daniel Wan assesses the development of video analytics from a perceived premium add-on to a cost-effective and key component in certain security applications.
features such as traffic monitoring functions and detection of left luggage within transportation hubs.
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On a basic level, the ability of analytics to identify the movement and speed of vehicles and people, as opposed to other spurious objects, lends the technology to monitoring of perimeters and suspicious behaviour within defined areas. Clearly, there is a requirement for security alerts where there is a danger of cars or pedestrians entering hazardous or restricted zones, such as airport runways.
Left luggage poses a specific security
threat in airports and, as such, has become an increasing area of interest for airport operators and governments. In the United Kingdom, the Home Office’s Imagery Library for Intelligent Detection Systems (i-LIDS) certification contains a specific scenario relating to detection and tracking of objects. Video analytics can alert security guards to packages and luggage left within a scene, which otherwise may go undetected in
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he use of analytics has evolved beyond fulfilling basic security needs to include
advanced
the midst of multiple CCTV screens. Similarly, the software can highlight instances of theft, where objects have been removed from a scene.
Wider Acceptance Recently, a number of factors have contributed to an increase in interest and demand, enabling video analytics to be reconsidered as a viable video surveillance option. The growing transition from analogue to networked CCTV has seen a wider acceptance of digital solutions, including analytics, leading to further benefits in terms of being able to monitor and manage systems from remote locations.
“...only suspicious behaviours trigger the alarms and not spurious objects such as the local wildlife or weather related effects...”
More importantly, end users and integrators were historically unable to refer to a standard, or accreditation, for
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analytics systems in order to judge their effectiveness before purchase. This was the case until the introduction of the Home Office’s i-LIDS certification. i-LIDS is the UK government’s benchmark standard for video analytics technology and is awarded to security products judged to have met the stringent criteria specified by the Home Office Scientific Development Branch (HOSDB) in the development of video based detection systems for government use. Manufacturers meeting the highest level of performance classification receive the i-LIDS accreditation, which is the first real independent measure of the quality and functionality of a video analytics system.
Improving the Security Function When the costs of manned guarding and operators are considered, it’s tempting when assessing analytics to assume that the number of security staff can be immediately reduced by introducing the technology. Perhaps it’s more appropriate to view video analytics as a way to improve the efficiency of operators and guards.
December 2011 Aviationsecurityinternational
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