A target tracking method includes representing a human target with a machine readable model configured for adjustment into a plurality of different poses and receiving an observed depth image of {TAIL ~ the human target} from {HEAD ~ a source} 
A target tracking method includes representing a human target with a machine readable model configured for adjustment into a plurality of different poses and receiving an observed depth image of { TAIL ~ the human target } from { HEAD ~ a source }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD