Hmmm... It's a scanning imager with overlapping scans?.. Scanning imagers have been around since before array based imagers, but the weight, power need and complexity would favor arrays. There are of course some scanning imagers used, like the one used in Mars Express. But this is a passive system, it uses several 1D arrays, and the movement of the craft provides the other scanning direction.

Of course the circular scanning has some interesting possibilities, but the question is if the higher weight, larger size and power need might still prohibit it's use. Anyway, it will not have much to say for color quality, as this system would have to use one of the conventional approaches to color filtering. No camera will create images exactly like how you would see it, in fact our eyes are extremely nonconsistant in their imaging, a scenery may look colorful or bleak, redder or bluer all depending on how your eyes levels of photosensitive chemicals are, still it is as true color as it can get...

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