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Demonstrating Sensitivity of FLIR's Optical Gas Imaging Cameras

Optical gas imaging (OGI) cameras are extremly sensitive - they can detect small gas leaks from several meters away, large leaks from hundreds of meters away, and also detect gas from moving transport vehicles like tanker trucks, barges, and rail wagons.

Using the high sensitivity mode (HSM), operators can spot even the smallest of leaks. High sensitivity mode is an image subtraction video processing technique that enhances the thermal sensitivity of the camera. The HSM feature subtracts a percentage of individual pixel signals from frames in the video stream from the subsequent frames - this enhances the differences between frames, and makes leaks stand out more clearly in the resulting images.

Watch the video below to see HSM in action: