Infrared imaging radiometry is the science of using an infrared camera to measure the amount of IR radiation from a target in a scene. Every pixel in the image formed by a radiometrically-calibrated camera carries quantitative information. Radiometric images are more than just pictures; they are also two-dimensional grids of measurements of the infrared radiation imaged onto the sensor from the scene. In this webinar, we will cover introductory concepts, such as what is infrared and how does it work. We will also introduce intermediate concepts including radiometric calibration and foundational IR measurements, like Radiance and Radiant Intensity.