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Enhancing realism of mixed reality applications through real-time depth-imaging devices in X3D

: Franke, Tobias; Kahn, Svenja; Olbrich, Manuel; Jung, Yvonne


Association for Computing Machinery -ACM-, Special Interest Group on Graphics -SIGGRAPH-; European Association for Computer Graphics -EUROGRAPHICS-:
Web3D 2011, 16th International Conference on 3D Web Technology. Proceedings : June 20-22, 2011, Paris, France
New York: ACM Press, 2011
ISBN: 978-1-4503-0774-1
International Conference on 3D Web Technology (WEB3D) <16, 2011, Paris>
Fraunhofer IGD ()
extensible 3D (X3D); augmented reality (AR); mixed reality; rendering

Until recently, depth sensing cameras have been used almost exclusively in research due to the high costs of such specialized equipment. With the introduction of the Microsoft Kinect device, real-time depth imaging is now available for the ordinary developer at low expenses and so far it has been received with great interest from both the research and hobby developer community. The underlying OpenNI framework not only allows to extract the depth image from the camera, but also provides tracking information of gestures or user skeletons. In this paper, we present a framework to include depth sensing devices into X3D in order to enhance visual fidelity of X3D Mixed Reality applications by introducing some extensions for advanced rendering techniques. We furthermore outline how to calibrate depth and image data in a meaningful way through calibration for devices that do not already come with precalibrated sensors, as well as a discussion of some of the OpenNI functionality that X3D can benefit from in the future.