Thermal cameras make it easier to detect motion because you are eliminating much of the detail and only emphasising temperature “colors”
Combining thermal imaging with analytics provides a robust system

Prices are dropping for thermal cameras. Now they are much more affordable for non-military customers – and more likely to be used in combination with video analytics. Combining thermal imaging with analytics provides a robust system; the technologies work well together.

Thermal cameras make it easier to detect motion because you are eliminating much of the detail and only emphasising temperature “colours,” says Brian Lane, director of marketing, 3VR. When video analytics are tuned to be used with thermal cameras, alerts are only sent if there is motion with colour signatures between 95 and 105 degrees F, for example. This removes motion from trees in the wind, birds, and other things that cause false positives. Thermography analytics have a host of uses within security and other industries.

Thermal surveillance cameras can be combined with video analytics to deliver sophisticated image interpretation and comprehension for customers requiring detection in low-light or zero-light environments, says Maor Mishkin, director, Video Analytics Product Champion, DVTEL.

DVTEL has developed the ioimage Thermal line as an automated detection solution for security deployments in critical infrastructure, perimeter security, oil and gas, and transportation markets. Analytic encoders allow the cameras to deliver an advanced level of analytic capabilities to reduce false alarms while maintaining a high probability of detection.

Thermal imaging is ideal for a variety of low-light conditions, says Mishkin. The infrared detector senses the energy (or heat) that all objects, structures and people emit. This approach enables a more consistent image than traditional cameras in harsh environments, such as those affected by fog, haze, smog, smoke, rain and extreme variances in temperature.

By combining video processing
video analytics and raw video
together in an edge device, you
can get greater detection range – reducing costs – and greater
detection accuracy, which
increases security

Thermal cameras sense heat and have always been known as the perfect “human detector” for night applications, says John Romanowich, CEO, SightLogix, Inc. Now they perform very well in bright sun and bad weather, making them an excellent choice for securing sites around the clock, he adds. SightLogix combines thermal cameras with video analytics and supported with sufficient video processing. The company’s smart thermal cameras now accurately detect intruders with very low nuisance alerts even in the most difficult outdoor conditions, says Romanowich. SightLogix’ camera systems use electronic stabilisation to compensate for wind and vibrations and geo-registration capabilities to create accurate size filters that ignore the movement of small animals, trash, trees, etc. They are ruggedised to withstand temperature extremes, weather, sand and dust. With the right system, video analytics can deliver excellent security results, Romanowich says.

Thermal camera costs continue to fall even as video processing continues to increase, allowing customers to deploy military-grade intrusion detection solutions to solve general problems that include theft and vandalism, he adds. In effect, smart thermal cameras expand the function of a burglar alarm from inside the building out to the perimeter, with the same level of reliability and low costs that we expect from home/office systems.

SightLogix takes a different approach from other video analytics manufacturers. First, SightLogix products are focused exclusively on the outdoor market. Second, the company has determined the only way to provide accurate video analytics outdoors is to apply a very high level of video processing in advance of the video analytics using the raw thermal video data as it leave the imager, all combined into a single edge solution. “This is the only way to make outdoor video analytics accurate, repeatable and cost-effective,” says Romanowich.

SightLogix recognised that an edge-based approach that ties the imager, video analytics and video processing tightly together is mandatory when designing a system capable of overcoming outdoor variables. This is because once video has been compressed and sent over the network to a separate server for analysis, there is not enough video detail available to differentiate relevant motion – such as a human intruder – from irrelevant motion, such as trash or trees blowing in the wind. By combining video processing video analytics and raw video together in an edge device, you can get greater detection range – reducing costs – and greater detection accuracy, which increases security.

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Larry Anderson Editor, SecurityInformed.com & SourceSecurity.com

An experienced journalist and long-time presence in the US security industry, Larry is SourceSecurity.com's eyes and ears in the fast-changing security marketplace, attending industry and corporate events, interviewing security leaders and contributing original editorial content to the site. He leads SourceSecurity.com's team of dedicated editorial and content professionals, guiding the "editorial roadmap" to ensure the site provides the most relevant content for security professionals.

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