Governments around the world who are determined to contain or delay the spreading of the disease, are locking down whole cities or at the very least, demanding that places where people congregate in large numbers, such as retail stores, restaurants shops, pubs and clubs, close.
However, at some point hopefully not too far away in the future, the number of people being tested positive for COVID-19 will begin to reduce and thought will be given as to how many of these types of businesses will be able to safely reopen. Inevitably, social distancing rules will have to remain in place and this is likely to mean only a specified number of people will be allowed to be in a controlled area at any one time.
The role of Video Analytics and AI in the fight against Covid-19
There are so many environments where complying with this limitation will be a challenge. Pubs and clubs, for example, will be desperate to reopen at the earliest opportunity, but in order to do so, they might have to employ additional door staff just to count the number of people who enter and leave. For companies already struggling to survive, the cost of hiring these extra members of staff could be prohibitive.
Fortunately, there is a simple solution readily available which can be quickly deployed and will prove to be far more cost-effective and accurate than employing someone to do the same job. It comes in the form of video surveillance cameras which are preloaded with people counting video analytics. The analytics are able to provide real-time information on the net number of people on the premises at any particular time, as it is able to simultaneously count both people entering and leaving premises. The data can be displayed in an easy to understand format on smartphones, laptops and PCs to provide managers with an early warning that permitted numbers are close to the permitted limit.
System integrators will no doubt be able to identify many other social environments where people counting video analytics will help ensure that social distancing rules are implemented and verified. We do not yet know how these rules will evolve when the immediate crisis is over, but shopping centres, art galleries and museums are just a few more examples of where the solution can be effectively deployed.
People Counting functionality to help to determine occupancy
Although developed to help retailers gain a greater understanding of customer behaviour video analytics capable of identifying occupancy levels provide a powerful tool to identify if too many people are congregating in specific areas.
As an example, AI-Crowd video analytics, developed by Hanwha Techwin’s technology partner, A.I Tech, is able to provide an estimation of the number of people present in crowded areas where they might be expected to move slowly or stop, whilst AI-Overcrowd will generate an alert if the occupancy of an area exceeds a specified threshold.
As with people counting analytics, this solution can be quickly deployed and used ‘out-of-the-box’ as it can also run onboard cameras, which have open platform chipsets with sufficient processing power to do so.
Many cameras will support two-way audio and as such, will enable operators to communicate with visitors that they need to move out of the area.
Intelligent Video Analytics
In addition to these specialist video analytics applications, a large number of IP network cameras from manufacturers such as Hanwha Techwin, include as standard various forms of license-free analytics. The latest generation of Wisenet cameras, for example, are equipped with a suite of Intelligent Video Analytics (IVA), which includes enter/exit direction, tripwire and face detection. Combinations of these various forms of video analytics can be configured to form a cost-effective digital barrier.
Will AI help to combat crime?
With the threat of increased criminal activity, control room operators will need all the help they can get to visually verify any suspicious activity and if necessary, direct security personnel to deal with any incident. The earlier they can do so, the better and in this respect, a new range of Wisenet cameras equipped with deep learning based video analytics will shortly be launched. These will ensure operators are not frustrated by ‘false positive’ alerts which, depending on the environment, might be generated by existing forms of video analytics, as well as the false alarms that are often generated by intruder and perimeter protection sensors.
These cameras will be able to simultaneously detect and classify various object types, including people, vehicles, faces and license plates. Most importantly, it ignores video noise, waving trees, moving clouds and animals, all of which might normally be the cause of false alarms.
The AI algorithms built into these new cameras will also provide greater people counting accuracy.
Innovative AI Solutions Developed in 2020
This year, we have seen the introduction of AI applications developed by Hanwha Techwin and our technology partners which have enhanced video surveillance systems. Occupancy Monitoring helps to manage footfall by showing ‘Enter‘ or ‘Stop‘ messages to visitors before entering a premises, whilst Social Distance Measuring accurately measures the distance between people, triggering alerts when social distancing guidelines are not being complied with. Coupled with Hanwha’s Face Mask Detection application and the new body temperature camera, these innovations give greater assistance to businesses as they seek to operate in a world where social distancing will remain a very important issue for some time.
Rapidly deployable cameras
These advances in video surveillance technology will certainly also provide security personnel with powerful tools to keep one step ahead of criminals. Indeed, the criminal fraternity are unlikely to restrain themselves at this challenging time. They will most likely seek to take advantage of a situation where many business premises will be unoccupied and therefore offer rich pickings to looters and thieves. There is certainly no shortage of high-performance cameras available which will allow control room operators to detect any suspicious activity, but the 2 and 5 megapixel models which are part of the Wisenet X Plus series, deserve a special mention.
The four-part magnetic modular design of Wisenet X Plus cameras enables them to be installed much more quickly than other cameras of a similar specification. The ability to prefigure IP network settings without the need to remove the camera modules from their packaging also reduces the time an engineer has to spend on-site and/or cause disruption, as does the cameras’ motorised PTRZ gimbals which enable installers to remotely pan, tilt, rotate and zoom the lens position in order to set the camera’s field of view.
A Positive Outlook
Manufacturers have for some time been striving to help end-users achieve added value from their video surveillance solutions. Covid-19 has made it even more important that we do. Fortunately, our industry isn’t shy of ingenious design and development engineers who will help us rise to the challenge and ensure we contribute to companies getting back to being ‘open for business’ as soon as it is possible to do so.
Written by Uri Guterman, Head of Product & Marketing at Hanwha Techwin Europe
System integrators requiring more detailed information on the products and solutions mentioned in this article should contact their Hanwha Techwin Account Manager or email Uri Guterman at firstname.lastname@example.org