When using a thermal imaging security camera, you see heat signatures instead of light. Also known as FLIR cameras, these cameras portray images using their temperature instead of their visible aspects.
Any object that emits even the lowest amount of warmth registers an infrared radiation in the LWIR and MWIR wavelengths. A thermal imaging security camera picks up this radiation, then uses the variations of the temperature to make out an image (grayscale) using darker and brighter shades of grey to represent cooler and hotter temperatures respectively. This way, you get to see a visual representation of the heat profile. There are thermal imaging security cameras that use color instead of the grayscale image. Images that are hot come off as yellow with the cooler ones taking up the blue shade. This makes it extremely easy to associate the temperatures in the image.
Thermal cameras do not require light to record images. Unlike the other cameras that require some amount of light or infrared to record images, thermal imaging security cameras have a thermal imager that works in pitch black conditions. This ability makes this camera ten best for covert operations.
Ability to detect a threat from a long distance. Vehicles, animals, and humans are usually warmer than the surroundings. The high contrast allows for fast and wide-angle detection of threats placed at a distance. A thermal security camera that is strategically placed can detect objects that are 50 kilometers away.
Day and night recording. Many cameras rely on suitable lighting to record high-quality images. Thermal imaging security cameras are immune to light changes and can record images day and night.
See through light fog and smoke. A thermal imaging security camera is not affected by visible obscurants such as light foliage, smoke, fog, and dust. With this ability, objects that are under other materials can be easily detected because the temperature that they emit affects the surface of the material.
Temperature monitoring. Thermal imaging security cameras offer accurate temperature sensing capabilities. This is useful in areas such as manufacturing plants and data centers to make sure that it is in safe operating conditions. If the temperatures go past the set levels, an alarm is triggered.
Thermal Imaging Security Camera Facts
• The thermal lenses are specified with a focal length or a Field of View (FOV).
• Thermal imaging security cameras that are lowly priced come with a non-zoom lens with fixed focus.
• Thermal cameras commonly use Germanium lenses. Germanium permits infrared energy to pass through.
• Thermal cameras cannot see through glass.
• Thermal imaging security cameras with electronic focus lenses, zoom, and dual FOV are expensive.
These types of cameras are ideal for commercial security applications. Thermal cameras do not rely on light to record quality footage and can, therefore, be used in challenging environments. You can use this type of camera as a standalone security device or add quality to your security surveillance system. Their ability to detect heat to provide high contrast images makes thermal imaging security cameras the best to add-on for video analytics.
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