I recently saw a PBS-produced show which was quite off-topic for this board, generally, but involved image processing. This special, "The Bomb", showed a lot of old film footage of nuclear explosions. Where this is relevant to the board is that they cited new work in image processing that dramatically improved the visual quality of that film. Early on, they showed old, grainy film, and showed the quality of the improvements as a "scan line" moved across the frame, converting the old, grainy imagery to new, greatly improved video. They verbally referred to this image processing work, but I'm not sure how one would find out the details of the work.
The show itself is cited here:
http://www.pbs.org/program/bomb/