Thanks to Robin Hewitt!! for the very helpful Camshift wrapper.
We decided to include Camshift to compensate for the intermittent face detectors.
Also, realized that the Modesto Castrillon-Santana's Head and Shoulders haar cascade classifier has a far better detection rate than the standard face haar cascades that come with OpenCV.
the camshift failing towards the end here-- fair enough as she turns away her head.
We should do something about resetting the camshift tracker at the beginning of each shot. Also, we still need to implement camshift for multiple faces/people. Also, we should implement some sort of error checker...so as to not have the camshift tracker get carried away(pun intended.)