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The Power of Infrared Thermal Imaging in Personnel Detection

The Power of Infrared Thermal Imaging in Personnel Detection

Oct 20,2022
infrared thermal imaging
Detecting people in low-visibility environments can be challenging. Infrared thermal imaging sensors provide additional tools for person detection in these situations. They can conveniently detect humans in smoke, fog, haze, dust, and darkness. As the risks associated with contactless swipe transactions, contactless smart cities, and increased densities of people in public spaces increase, so does the need for influential people detection systems.

Infrared thermal imaging for people detection is a powerful technology that can help detect people in difficult-to-access locations that may not be detected by video surveillance. Thermal imaging cameras are also great for detecting people in low-light conditions, making them especially suitable for use at night. In this blog, we will discuss the power of infrared thermal imaging for people detection.

Thermal imaging cameras for people detection

A thermal infrared camera is an imaging device that uses infrared radiation to create images of objects behind walls, ceilings, or other physical structures. It works by detecting thermal radiation emitted by objects with a temperature above absolute zero (-173℃). Additionally, it senses invisible radiation emitted by objects to create a heatmap of the scene. Thermal images produced by thermal infrared cameras can help identify and locate hidden and potential heat sources. Known as night vision cameras and thermal imagers, they are used to capture and record images in low light.

The qualities of thermal imaging cameras make them very popular for detectors and military technology.

How does thermal imaging affect the human body?

One of the most advanced forms of imaging in medical diagnosis is thermal imaging using infrared technology. The human body emits naturally occurring wavelengths of thermal radiation when examined with an infrared camera. The camera works by recording the thermal radiation emitted and analyzing temperature changes in various areas of the body.

Thermography, for example, uses heat-sensitive equipment that enables healthcare professionals to pinpoint abnormal thermal activity. As a result, medical professionals can detect this activity to arrange treatment for patients experiencing health problems.

Infrared thermal imaging for person detection in stadiums

A stadium is where you can often see people doing many different activities. From soccer matches to football matches, from basketball games to musical performances, stadiums are always packed with fans who are passionate about their favorite team or performer. At the same time, however, they are sports venues and other large groups of people that pose a potential terrorist threat to civilian and military security forces around the world.

Infrared thermal imaging for occupant detection in stadiums is a technology developed for military and law enforcement surveillance. Its goal is to identify and locate people in an area and identify their type, including evacuees, lost children, or criminals.

It uses infrared thermal imaging to create a graphical display of the activity in the stadium - the image is updated approximately every 3 seconds. As a result, security operators can detect people in facilities without relying on cameras visible to customers.

According to a report released by Fortune Business Insights, the global temperature sensor market size was US$5.02 billion in 2018 and is expected to reach US$7.88 billion by 2026.

The technique works on any background from air to solid surfaces. Infrared sensors detect early movement and accidents of approaching crowds on sports fields. This people detection technology provides reliable information on location, orientation, crowd flow patterns, and density. Additionally, it can see people through smoke, fog, and other occlusions that would otherwise affect the visibility of regular cameras in the area.

What is the purpose of a laptop infrared camera?

The first infrared facial recognition came in a Windows 10 feature called Windows Hello, allowing anyone to log into a PC without a password or PIN. Instead, when you tap your new laptop's screen, the camera takes a photo of your face. Sophisticated algorithms analyze up to 50 face-specific features, including the distance between eyes, cheek shape, and jawline, then instantly create a template for instant comparison with those stored in the laptop's encrypted memory.

Microsoft, for example, is making an industry-wide leap in biometrics with its Windows 10 operating system. Starting with the new Surface Pro, Microsoft's hardware partners have embedded infrared cameras into their laptops, enabling users to log in with facial recognition instead of passwords.

How does infrared thermal imaging work?

Thermal cameras monitor temperature by detecting and collecting infrared light that is invisible to the naked eye. While humans can see the smallest range of wavelengths on the electromagnetic spectrum, thermal cameras can capture a wider range, including infrared radiation. This radiation is emitted from the surface of the object and depends on the temperature of the object. The more thermal energy an object emits, the hotter it is.

For example, thermal imaging systems use a thermopile device mounted on the nose of an aircraft. Thermopiles generate electrical pulses when the temperature changes. The camera compares the temperature difference of the object it is tracking between two consecutive pictures for thermal infrared imaging. This difference looks like an area or line drawing called thermography.

What is an infrared camera used for?

The range of diverse applications for thermal imaging cameras is expanding every day. From remote scanning of ancient artifacts to inspecting large industrial plants, infrared technology has proven to be an invaluable tool in countless industries, including your own. Therefore, infrared cameras are very versatile.

Insight Partner's research shows that the infrared camera market is expected to reach $9,055.58 million by 2027

For example, infrared cameras are used to examine heat patterns, track heat, monitor changes in heat distribution, and identify warm objects in cold climates. Additionally, create 3-D models of buildings and other structures, locate energy losses in buildings, monitor mold growth, weather events, crop harvest cycles, and monitor energy usage.

In conclusion

Person detection is a rapidly emerging discipline in computer vision, and most state-of-the-art person detection algorithms are based on heat transfer. Detecting people via thermal sensing has many advantages, the most important being the presence of highly discriminative features resulting from people's actions. If you want to customize or buy infrared thermal imaging equipment first, please contact us.

JAVOL is a professional custom infrared thermal imaging systems manufacturer with many years of experience. We have leading R&D technology and excellent manufacturing technology. We can continuously adjust and optimize the design according to the actual needs of users. Our products are sold all over the world and used in various industries. If you want to know about specific services, please send your needs to us, and we will give you a satisfactory answer in time.
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