Cluster tracking with Time-of-Flight cameras | Dan Witzner Hansen, M. S. Hansen, M. Kirschmeyer, Rasmus Larsen, Davide Silvestre
| | Abstract | We describe a method for tracking people using a time-of-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 defined 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. | | Keywords | Authentication , Calibration , Clustering algorithms , Image sensors , Informatics , Layout , Pixel , Smart cameras , Solid modeling , Target tracking | | Type | Conference paper [With referee] | | Conference | IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops. CVPRW '08. | | Year | 2008 | | ISBN / ISSN | DOI 10.1109/CVPRW.2008.4563156 | | BibTeX data | [bibtex] | | IMM Group(s) | Image Analysis & Computer Graphics |
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