While thermal and infrared imaging are often used interchangeably, there are some key differences between the two. According to Optics Mag, the main difference is that thermal imaging creates images based on the heat emitted by objects, while infrared imaging uses all light wavelengths of infrared radiation to capture images. Thermal imaging cameras can help detect temperature abnormalities across large areas or identify hot spots in electrical systems or equipment. Infrared cameras and thermometers can precisely measure the temperature of specific points on an object.