Would ionization hold true on an slow-moving object? Slow enough that the witness had time to run in the house and get a camera, come back out, focus and shoot the picture? I don't know.
The problem with trying to enhance a digital photo is that we can't be sure if we are working with an exact copy of the original frame, size-wise and resolution/pixel-wise. A RAW image would be nice to have, but how many digital cameras have that capabiltity?
Ionization is not from speed but from the propulsion technologies involved, as I understand it.
timer?