12. The system of claim 11 wherein the training stage comprises an unsupervised training stage wherein human poses in the set of training images are unlabeled.
11. A system for human detection and a pose classification comprising: receiving means for receiving a probabilistic model derived from a set of training images in at least one of an unsupervised training stage or a semi-supervised training stage; generating means for generating a set of test image descriptors representing a test image; determining means for determining a likelihood that the test image contains a human based on parameters of the probabilistic model and the test image descriptors; and classifying means for classifying a body pose of a detected human in the test image based on the test image descriptors and the parameters of the probabilistic model.