Edited by author 11-16-2004 03:46 AM
I have seen that spring-based models work quite well for a wide number of engineering applications

The detection of occluded images is important to prove for this type of a model (and is done in the paper experimentally). But they should also have done occluded images of people. Say we only see a person's body and head, it would be quite possible to confuse the person with other objects (like TV on a table). Some of these can be eliminated using the prior probabilities though by restricting the size of the persons.