×

Modeling of humanoid forms from depth maps

  • US 8,249,334 B2
  • Filed: 05/10/2007
  • Issued: 08/21/2012
  • Est. Priority Date: 05/11/2006
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method for processing data, comprising:

  • receiving a depth map of a scene containing a body of a humanoid subject, the depth map comprising a matrix of pixels, each pixel corresponding to a respective location in the scene and having a respective pixel value indicative of a distance from a reference location to the respective location;

    segmenting the depth map so as to find a contour of the body;

    processing the contour in order to identify a torso and one or more limbs of the subject by;

    identifying an axis of the body in the depth map;

    computing a transverse thickness of the contour along multiple first lines perpendicular to the axis;

    computing a longitudinal thickness of the contour along multiple second lines parallel to the axis;

    designating as the torso a part of the area within the contour that is defined by the first and second lines along which the transverse thickness and longitudinal thickness are no less than a specified transverse threshold and longitudinal threshold, respectively; and

    identifying a second part of the area that is connected to the torso as at least one of the limbs; and

    generating an input to control an application program running on a computer by analyzing a disposition of at least one of the identified limbs in the depth map.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×