AI Powered Select Subject? Product Photography

My company photographs antique books everyday. We do 80-200 images per day where we need to "Select Subject" the seemingly simple rectangular shape of a book to put it on a false white BG.  However,  the selections aren't perfect enough to batch/automate.

Yes, we sometimes use the new Mask tool in Bridge, but it doesn't always work. Yes, we've tried diff color paper back drops to improve the contrast/selection sensing. Still annoying, we end up hand refining the simple selection of a book. Every page sometimes. 

  I imagine it can't sense our objects because  "Select Subject" was trained for humans/landscapes? This could be a good improvement for Product Photographers?

Perhaps you guys could expand your AI work to create a "Select *AI Command*" ? That way we could give the AI clues on what we need it to see/select in the image? Ex. "Select *Separate the cream colored book with dark brown edges from the white paper backdrop" 

Let's make product photograpy easier, VOTE THIS POST, if you agree!