Those of you who would like to quickly see what this repository is all about, go to the folder rnt/sample. There you will find a sample program which will detect faces in a video stream supplied from the default webcam attached to the computer. Also, you can check out a demo video at http://www.youtube.com/watch?v=1lXfm-PZz0Q. In general, detection can be described as a task of finding the positions and scales of all objects in an image that belong to a given appearance class. For example, these objects could be cars, pedestrians or human faces. Automatic object detection has a broad range of applications. Some include biometrics, driver assistance, visual surveillance and smart human-machine interfaces. These applications create a strong motivation for the development of fast and accurate object detection methods.