The one thing that can fix the problem of grainy resolution
pictures. If your super spiffy spy satellite
grabs 5 images, 1 second apart, their
pixels will be not be completely align
ed with each other (think of two
d with some rotation
ting). I'm sure you could interpolate
the subtle differences;
probably a decent way would be to construct a higher resolution
and precisely determine the alignment/rotation/stretching of each original image (the hard part). Then, you would
find each of the high-resolution pixel
s based on the average of all the larger
pixels that overlap the that place.
I wildly guess that you could at maximum quadruple
the number of pixels (double each axis) with this technique (requiring, say, 8 images), and maybe quadruple that using
image sharpening tweaks (i.e. compensating for the effects of finer pixels you already know). So, my wild
guesses say you could get 2 cm resolution from
10 cm pictures, perhaps enough to read a plate, but I think I'm overestimating this method's ability.
Anyway, the atmosphere would probably interfere in some nasty way.