A street at night, with the silhouette of two men

Thermal imaging

Picturing the invisible

When you need reliable round-the-clock detection, Axis thermal cameras are an excellent – and cost-effective – solution.

There’s no hiding from them. Because they capture images based solely on the heat radiating from people and objects, they’re unaffected by darkness or poor visibility. So they’re as accurate in pitch black, fog, and camouflage as they are on a bright sunny day.

Just like our visual cameras, Axis thermal cameras support intelligent analytics. In combination with the cameras, these analytics analyze detected incidents, automatically dismiss non-threatening ones, and immediately notify security of critical situations. 

Thermal cameras don’t deliver images that allow reliable identification. So if privacy regulations are a concern, you’ll remain safely in compliance.  And we also offer explosion-protected cameras based on thermal technology that feature protective housing. They’re certified worldwide for use in hazardous areas.

It’s clear: Axis thermal cameras give you the “sight” – and the insight – you need to protect property, perimeters, and people.

The role of intelligent thermal cameras

Thermal cameras with integrated analytics applications have a specific – and important – role to play in a complete surveillance system.

Detect: Thermal cameras detect suspicious behavior and objects even in dark scenes and other difficult light conditions.  

Verify: As soon as a thermal camera has detected something suspect, an operator can verify that the activity is really a threat. 

Act:  Once activity has been verified as suspicious, the thermal camera, acts in response. For example it can:

  • Automatically notify security 
  • Trigger visual cameras to identify people or vehicles
  • Trigger lights or a speaker to deter the crime 

A peek inside a thermal camera

Thermal cameras work because all objects – organic or inorganic – emit a certain amount of infrared radiation as a function of their temperature. Like all cameras, thermal cameras collect electromagnetic radiation, which is formed into an image. Conventional cameras work in the range of visible light, in other words, with radiation with short wavelengths. Thermal cameras, on the other hand, detect radiation with mid-length or long wavelengths, which is called infrared radiation.  

The main difference between infrared radiation and radiation with a shorter wavelength is that infrared radiation is emitted rather than reflected. Since the object themselves emits the light (heat) thermal cameras detect, thermal cameras are not dependent on visible light and can detect in all light conditions, day or night. You can learn more about thermal imaging in our white papers, which you’ll find below.

Remote temperature monitoring

Learn about thermography, the technology behind temperature alarm cameras.

Download white paper

Thermal cameras white paper

Learn about the benefits of thermal cameras, and how they work.

Download white paper

Thermal technology glossary

Understand the words behind thermography and thermal cameras.

Download glossary

Thermal camera products

Discover more about the product portfolio, and find the right camera for you.

Thermal cameras