Augmented reality live-action compositing

Thomas Pintaric
Vienna University of Technology, Austria
The Second IEEE and ACM International Symposium on Mixed and Augmented Reality, 2003


   title={Augmented reality live-action compositing},

   author={Pintaric, T.},

   booktitle={Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality},



   organization={IEEE Computer Society}


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This report describes a system that performs live-action compositing of physical and virtual objects to a panoramic background image in real-time at interactive rates. A static camera is directed towards a 40 cm3 miniature stage, whose backdrop has been colored in chromatic green. Users can add virtual objects and manipulate their parameters within the scene by using a proxy device that consists of a small rod attached to a fiducial marker. Our system runs on commodity hardware such as a notebook equipped with a firewire video camera. The necessary chroma-keying and adaptive difference-matting algorithms have been implemented on a GPU using fragment shading.
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