Why Video Analytics?

May 3, 2016

Video analytics uses mathematical algorithms linked to computer vision technology. These algorithms allow video cameras to be programmed to extract only useful information to provide hugely more accurate and effective video security than having to rely on the alertness of human operators. Indeed, humans are sometimes no more than a ‘presence’ when it comes to monitoring and reacting to activity and movements on a video screen, no matter how experienced and motivated these people might be.





There’s plenty of research that’s been done that shows the limitations of human operator surveillance, whereas video analytics can be used to monitor security cameras 24/7, 365 days a year, so cameras are monitored fully and accurately without ever taking a break.


Video analytics makes security and perimeter systems much more robust than using other technologies or products.  Other technologies will provide some security, and passive systems can put off the opportunist, but only at the cost of myriad false alarms.


In order of sophistication, you can install…

External proximity infra red (PIR) sensors. These are only effective over very short distances and are triggered by any movement, whether a threat or not, and with no means of verification.

Sensor cables. These systems are effectively limited to just the area where they are placed. Again, alarms are triggered with no means of verification.


Microwave beams or infrared (IR) barriers. Once again, such systems are effectively limited to a very small area, can be jumped over or slipped under and alarms are triggered with no means of verification.

Cameras and digital video recorders (DVR). These systems are good for recording and forensic analysis in the case of an incident, however they don’t provide alerts in real time.


Video sensor with motion detection. These are of limited use outdoors because the detectors have no concept of any object or its attributes, nor their trajectory or direction, nor of any specified forbidden zones (and most of the movements in the field of view are of no interest to the user) and consequently trigger a large number of false alarms..


Video analytics. Systems that incorporate video analytics can detect precisely what you need to guard against over very big surfaces and over long ranges. Enabled systems are very difficult to avoid as they can cover a very large portion of the site being guarded and, explicitly, guard against movements in areas where there should be none, or not of that type (behavioural), or not at specified times (outside office hours).

Video analytics quite simply reduces the cost of ownership caused by inadequate monitoring (leading to damage or theft) and/or false alarms (increasing labour and personnel costs) and the transmission and storage of unnecessary data.


Learn more about Davantis Video Analytics: http://www.timetech.co.za/#!davantis-video-analytics/lk1hc


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