Featured wands for camera calibration and as a gesture based 3D interface device
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United States of America Patent
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Aug 17, 2010
Grant Date -
Jul 10, 2008
app pub date -
Feb 28, 2007
filing date -
Jan 4, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Passive wands, tracked by one or more cameras, are used as user interface devices. The wands are inexpensive, and are a natural way for users to interact with devices such as large displays. Each wand may be used to specify a full 6 degrees of freedom, which can be helpful for manipulation of 3D applications. The wands may also be used to identify 3D world points, which is useful for multi-camera calibration, and for building 3D models of physical spaces. The described methods provide a more precise estimation of wand pose, and can be implemented with a single camera. Also described is a method for estimation wand pose using information available along a one dimensional ‘line scan’ within the image, which simplifies processing.
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Cited Art Landscape
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