Like most obvious things, scientist have tried what is known in the field as "image segmentation". If you google it, you'll see a bunch of demos and papers. I

Like most obvious things, scientist have tried what is known in the field as "image segmentation". If you google it, you'll see a bunch of demos and papers. I haven't seen anything in the literature about incredibly effective implementations of 3D understanding and/or depth perception at the level you'd perhaps hope, but there is some progress being made.