This may be a non-biological way to do image processing; the programming community has been coming up with all sorts of hacks to to do this or that part of image processing for many years.
Keep in mind that for mammals, we look at things by moving our eyes. The acute vision part of your eye can see a spot about the size of your thumbnail at arms length. (OK, a little more - but not much more)
See this post to get a better idea of what the brain has to process as fed by your roving eye.
The thumbnails are all projected onto the same area of cortex in rapid succession. There is no tracing of an objects outlines. I have a great deal of trouble matching this known fact of human vision with your proposal.