Here is a video of the effect I am trying to replicate: http://www.youtube.com/watch?v=PGvNHFRIO08
They use physical paper cut-outs (you can see the shadows and outlines in a few frames) but it almost seems animated -- the first time I watched it I thought they were green-screening the background.
How would I get rid of the outlines around the cut out pieces of paper? I'm guessing it would involve increasing the contrast of the background dramatically, but not the hands?
Just looking for ideas on how to get started. Thanks!