Three-dimensional motion capture
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United States of America Patent
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Sep 13, 2011
Grant Date -
Jan 7, 2010
app pub date -
Sep 14, 2009
filing date -
Mar 16, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
In one general aspect, a method is described. The method includes generating a positional relationship between one or more support structures having at least one motion capture mark and at least one virtual structure corresponding to geometry of an object to be tracked and positioning the support structures on the object to be tracked. The support structures has sufficient rigidity that, if there are multiple marks, the marks on each support structure maintain substantially fixed distances from each other in response to movement by the object. The method also includes determining an effective quantity of ray traces between one or more camera views and one or more marks on the support structures, and estimating an orientation of the virtual structure by aligning the determined effective quantity of ray traces with a known configuration of marks on the support structures.
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