My crazy colleague Hao Li and slightly-less-crazy-but-still-as-brilliant co-conspirators Jihun Yu, Yuting Ye and Chris Bregler have just finished their paper submission to Siggraph 2013 and are now able to publish the work publicly.
Check out the info and paper on Hao's site here: Realtime Facial Animation with On-the-fly Correctives and check out the video of their amazing groundbreaking work here.
Thanks to the team for allowing me to laugh it up with them and help contribute some facial animation performances. The troll was my favourite part. :)