"http://www.cs.cornell.edu/~cnyu/latentssvm/, http://research.microsoft.com/pubs/72874/lsvm_amta.pdf and particularly http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.81.4938&rep=rep1&type=pdf are an ongoing success story in Object detection approaches where the latent variable is the unknown position of an object center and object parts." . . . .