Astronomers
Amateur astronomers use this. You shoot a video of the area of interest and the software then stacks the frames after correcting for star movement and you end up with a much higher resolution result. The software uses a database to figure out what direction the camera is looking and uses that to work out how the view moves. It's been around for a while now. It's not traditional interpolation and doesn't "guess" at anything.
Similar is focus-stacking where you take a bunch of stills changing the point of focus (closer/further away) and the software finds the sharpest parts of each image and combines them into a single image with perfect focus across the whole depth of field. This is great for macro work where you generally have a very thin depth of focus.
