Radiometric Streaming
Radiometric images are thermal photos that contain temperature measurement data for each pixel within the frame.
The detectors in FLIR A400 and A700 Image Streaming cameras will register a 16-bit signal value in each pixel element to create a frame that is then streamed to a computer. This raw signal value can be converted to a temperature value in FLIR software based on the camera's calibration. When doing so, we also need to account for the emissivity and many other parameters; this is demonstrated in the Spinnaker SDK Python example linked further below.
An alternative to streaming the thermal image frame with raw signal values is to set the camera to temperature linear mode. By doing so, the camera accounts for all relevant parameters and delivers a digital value that is easily converted to temperature without the use of any calibration variables
Develop the Software You Need with FLIR Spinnaker SDK
FLIR Spinnaker SDK is a free GigE Vision® compatible SDK that enables radiometric video streaming and provides camera control through the GenICam® interface. Cross platform development allows you to work in a Windows, MacOS, or Linux environment and to write your software in either C, C++, C#, VB, or Python.
