[blattimwind]

This absolutely works, but not quite the way GP described. Instead, unit motions on the bayer pattern are used, to the effect that every logical subpixel is sampled by every colour channel (therefore giving you a full pixel). Hence, no demosaicing is required. Hence, higher spatial frequencies can be maintained without incurring aliasing.

[red75prime]

It is also possible to actually increase resolution. https://arxiv.org/abs/1706.06266

[matte_black]

Got an example of an image made this way? I’d wager it probably looks like crap.