the MSR video of decision-tree based body recognition/segmentation was pretty neat <a href="http://research.microsoft.com/pubs/145347/CVPR%202011%20-%20Final%20Video.mp4" rel="nofollow">http://research.microsoft.com/pubs/145347/CVPR%202011%20-%20...</a> . is there a list of good applications of this technique besides credit checks and face recognizers?