A thermal imaging apparatus and a method of improving image quality in a thermal image video sequence imaging a scene, determining one or more of an image detail level, a degree of image motion and/or an image signal level of one or more captured thermal images; determining, based on one or more of the image detail level, the degree of image motion and/or the image signal level, an adapted frame rate for the capturing of one or more subsequent thermal images for the video sequence; capturing one or more subsequent thermal images at the adapted frame rate to improve the image quality in the video sequence.
