Patents by Inventor Pei Yean Lee

Pei Yean Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Global registration of multiple 3D point sets via optimization on a manifold
    Patent number: 8538138
    Abstract: A method for registering multiple 3D point sets by determining optimal relative positions and orientations of the 3D point sets. Initial values are determined for the rotation matrices corresponding to the relative orientations of reference frames of the 3D point sets. A registration error cost function is optimized on a product manifold of all of the rotation matrices to determine optimal values of the rotation matrices. The optimal values of the rotation matrices are used to determine optimal values for translation vectors corresponding to the relative positions of the reference frames of the 3D point sets. The 3D point sets are registered on a common reference frame using the optimal rotation matrices and the optimal translation vectors.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 17, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Shankar Krishnan, Pei Yean Lee, John Barrett Moore, Suresh Venkatasubramanian
  • Global Registration of Multiple 3D Point Sets Via Optimization on a Manifold
    Publication number: 20110012898
    Abstract: A method for registering multiple 3D point sets by determining optimal relative positions and orientations of the 3D point sets. Initial values are determined for the rotation matrices corresponding to the relative orientations of reference frames of the 3D point sets. A registration error cost function is optimized on a product manifold of all of the rotation matrices to determine optimal values of the rotation matrices. The optimal values of the rotation matrices are used to determine optimal values for translation vectors corresponding to the relative positions of the reference frames of the 3D point sets. The 3D point sets are registered on a common reference frame using the optimal rotation matrices and the optimal translation vectors.
    Type: Application
    Filed: September 29, 2010
    Publication date: January 20, 2011
    Applicant: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Shankar Krishnan, Pei Yean Lee, John Barrett Moore, Suresh Venkatasubramanian
  • Global registration of multiple 3D point sets via optimization on a manifold
    Patent number: 7831090
    Abstract: A method for registering multiple 3D point sets by determining optimal relative positions and orientations of the 3D point sets. Initial values are determined for the rotation matrices corresponding to the relative orientations of reference frames of the 3D point sets. A registration error cost function is optimized on a product manifold of all of the rotation matrices to determine optimal values of the rotation matrices. The optimal values of the rotation matrices are used to determine optimal values for translation vectors corresponding to the relative positions of the reference frames of the 3D point sets. The 3D point sets are registered on a common reference frame using the optimal rotation matrices and the optimal translation vectors.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: November 9, 2010
    Assignee: AT&T Intellecutal Property II, L.P.
    Inventors: Shankar Krishnan, Pei Yean Lee, John Barrett Moore, Suresh Venkatasubramanian