I've already built a working model (at least it appears that way). I'm looking for any research involving non-representational, low resolution imagery (3x3) - I

I've already built a working model (at least it appears that way). I'm looking for any research involving non-representational, low resolution imagery (3x3) - I haven't seen anything that rules out working with this kind of data at this scale. But maybe it's a fool's errand. I don't know. It would be nice to find literature that catalogs what has/hasn't been done in this space, or better, what works and what doesn't.