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Systems and methods for capturing motion in three-dimensional space

  • US 8,638,989 B2
  • Filed: 01/16/2013
  • Issued: 01/28/2014
  • Est. Priority Date: 01/17/2012
  • Status: Active Grant
First Claim
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1. A method of identifying a position and shape of at least a portion of an object (object portion) in three-dimensional (3D) space, the method comprising:

  • capturing, with a single camera having a particular vantage point, one or more images generated by casting an output from at least one source onto the object portion;

    analyzing the one or more images captured by the single camera from the particular vantage point to computationally slice the object portion, as captured, into a plurality of two-dimensional (2D) slices, each slice corresponding to a cross-section of the object portion, based at least in part on a plurality of edge points in the image; and

    reconstructing the position and shape of at least a portion of the object portion in 3D space based at least in part on a plurality of identified cross-sectional positions and sizes,wherein light rays cast from the edge points to the image capturing device are tangent to the cross-section.

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