Security Technology Executive

MAY-JUN 2018

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40 SECURIT Y TECHNOLOGY E XECUTIVE • May/June 2018 • www. VIDEO SURVEILLANCE much more. All of these contribute to greater overall security by alerting system operators to any unusual or abnormal activity that may require follow-up or further investigation. Situational Awareness and Investigation One of the most vital elements of security is situ- ational awareness or knowing exactly what is hap- pening in a particular environment at any given time. This is critical for identifying and understand- ing a developing or active incident and responding appropriately and effectively. While virtually all surveillance video provides some degree of situ- ational awareness, multi-sensor cameras deliver a number of significant advantages over single- sensor cameras. Chief among these advantages is the ability to record the entire 180 or 360-degree field of view at all times. This reduces the number of cameras required to provide non-stop situational awareness. Multi- sensor cameras also overcome the challenge of asking security operators to monitor video from a large number of cameras. In some cases, multi- sensor cameras can reduce the number of video screens and feeds operators must oversee, but they also enable more effective monitoring of larger areas by improving the operator's ability to view multiple areas of interest within a single field of view. A multi-sensor camera with built-in video analyt- ics across the wide viewing area can alert operators to incidents in real time, allowing them to view only those areas of interest that demand their attention – as opposed to monitoring several cameras to detect incidents. Once an operator receives an alert, he or she can digitally zoom in on a specific area within the wider scene for a more detailed view that leads to an immediate, appropriate response. At the same time, video from the entire scene continues to be recorded for later use, as needed. Consider a scenario where four intersecting hallways must be monitored. A single-sensor PTZ camera mounted in the intersection can capture images down the length of each hallway, one at a time. But a multi-sensor megapixel camera can do much more than that. A single multi-sensor cam- era mounted at the intersection can view all four hallways simultaneously. This eliminates blind spots and ma kes sure critical details are cap- tured and retained from all directions in a single view. By providing a high-quality video feed from all four directions, multi-sensor cameras ensure that if an incident occurs the camera will never be pointed in the wrong direction at the wrong time. When mounted on a ceiling in a lobby or waiting room, for example, these cameras will capture highly detailed images that deliver valu- able situational awareness that can improve the speed, efficiency and effectiveness of a response. Some applications where these cameras have been deployed for this purpose include schools, malls, hospitals and other areas where there are a lot of people moving around. In addition to vital situational awareness, multi- sensor cameras also contribute to more efficient investigations. Should video recordings need to be reviewed for post-incident forensics, having to sift through video from multiple overlapping sin- gle-sensor cameras can be time-consuming. Con- versely, the single view provided by multi-sensor cameras is much easier and faster. With less video to sift through, a multi-sensor camera saves securi- ty staff and investigators significant time and effort when searching for critical forensic data following an incident. And the camera also provides high- quality video, which can serve as excellent evidence for potential prosecution or other necessary action. The Purchase Proposition With these factors in mind, it 's easy to see that multi- sensor cameras are simply designed to make the overall design, installation, maintenance, and post-event forensic analysis simpler. A single hous- ing with multiple sensors will do the job of several single- sensor cameras, significantly simplifying the application and installation in terms of cabling , connections and VMS licenses. When you factor in these savings, multi- sensor cameras provide up to four cameras for the price of one in many sce- narios, providing more coverage and more bang for your buck. Considering all the economic and performance benefits multi- sensor cameras deliver over their single- sensor counterparts, it should come as no surprise that these cameras are moving more into the mainstream and making a significant impact on today's video surveillance landscape. About the Author: Ryan Zatolokin is a Business Development Manager and Senior Technologist for A xis Communications, Inc. » Today's multi-sensor cameras are also highly intelligent, with many offering a wide range of video analytics. «

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