Object recognition via simple camera was always a big problem. Just watch the following video and be amazed.
The best part of it - its free, as long as your code is open source.
For more info check here: http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html
Image the endless possibilities with this software.
https://www.youtube.com/watch?v=1GhNXHCQGsM