The vast majority of the image doesn't change too much between frames.
I'm no image compressing genius but calculating only the deltas between frames and transmitting only those pixels that actually change by an order of magnitude (with some type of filter) should dramatically reduce bandwidth and storage size and cost by an order of magnitude.
Kind of like a large number of small git commits for slowly changing data - store large amounts of mostly duplicated data with progressive delta changes.
It would of course be compressed, but I have the least confidence in the estimate in the compression ratio which is achievable in such a setting. So I did only add it in a handwaving way in the end.
I'm no image compressing genius but calculating only the deltas between frames and transmitting only those pixels that actually change by an order of magnitude (with some type of filter) should dramatically reduce bandwidth and storage size and cost by an order of magnitude.
Kind of like a large number of small git commits for slowly changing data - store large amounts of mostly duplicated data with progressive delta changes.