Cluster tracking with Time-of-Flight cameras

Dan Witzner, Hansen Mads, Syska Hansen, Martin Kirschmeyer, Rasmus Larsen, Davide Silvestre
2008 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops  
We describe a method for tracking people using a Timeof-Flight camera and apply the method for persistent authentication in a smart-environment. A background model is built by fusing information from intensity and depth images. While a geometric constraint is employed to improve pixel cluster coherence and reducing the influence of noise, the EM algorithm (Expectation Maximization) is used for tracking moving clusters of pixels significantly different from the background model. Each cluster is
more » ... efined through a statistical model of points on the ground plane. We show the benefits of the Time-of-Flight principles for people tracking but also their current limitations.
doi:10.1109/cvprw.2008.4563156 dblp:conf/cvpr/HansenHKLS08 fatcat:b37muigbjref5onb2nh5fegn2e