https://bitbucket.org/cdicle/smot/src/c0fa39bc621e?at=master
https://github.com/pkmital/Real-Time-Object-Detection
https://bitbucket.org/rodrigob/doppia/src/aa073b31e453?at=default
http://www.cs.cornell.edu/courses/cs4670/2013fa/projects/p5/index.html
https://github.com/rodrigob/barinova_pedestrians_detection
https://github.com/wg-perception/PartsBasedDetector
https://github.com/wg-perception/people