I've worked on similar systems as described in this article. If you ever watched "Lie To Me", the Fox TV show, that show is based on a real person and one of my long term business partners is a real life R&D firm working with the real life person "Lie to Me" is based. We have neural nets that "correct poor quality images" of a person, identify their emotional state, and can do so much more that is too scary to relate without violating trusts.
The biggest customers for the system are casinos and the interstate highway patrol. After that is organizations the help find missing children.