people_detector_node wraps around the functionality of the http://tum-ros-pkg.svn.sourceforge.net/viewvc/tum-ros-pkg/3rdparty/people_detector_2d_laser/
package in thus provides the hypotheses about the pose of human legs as seen in the 2.5D laser scan.
Classsifer's hypotheses are to be found in training_data subfolder, please also see the README file in people_detector_2d_laser package if you need to train
your own classifier.
people-detector is ...