Patents by Inventor Benoit de Roquemaurel

Benoit de Roquemaurel 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).

  • System and method for efficient real-time technique for point localization in and out of a tetrahedral mesh
    Patent number: 7899230
    Abstract: A method for determining whether a point is contained in a sub-volume of a digitized medical image, includes providing a tetrahedron volume mesh (TVM) representing a sub-volume of a digital image volume and a point M, finding a vertex P of said TVM that is closest to point M, finding a tetrahedron Ti in said TVM that defines a solid angle around point P where point M is located, wherein if M is inside Ti, then M is inside the TVM, if M is not inside Ti, finding a facet F of tetrahedron Ti through which a line PM connecting points M and P exits Ti, and determining whether a next tetrahedron Ti+1 of said TVM exists along line PM, wherein if no such tetrahedron Ti+1 exists, then point M is outside the TVM, and wherein if Ti+1 exists, determining whether point M is inside tetrahedron Ti+1.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 1, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Fred S. Azar, Benoit de Roquemaurel
  • SYSTEM AND METHOD FOR EFFICIENT REAL-TIME TECHNIQUE FOR POINT LOCALIZATION IN AND OUT OF A TETRAHEDRAL MESH
    Publication number: 20080205720
    Abstract: A method for determining whether a point is contained in a sub-volume of a digitized medical image, includes providing a tetrahedron volume mesh (TVM) representing a sub-volume of a digital image volume and a point M, finding a vertex P of said TVM that is closest to point M, finding a tetrahedron Ti in said TVM that defines a solid angle around point P where point M is located, wherein if M is inside Ti, then M is inside the TVM, if M is not inside Ti, finding a facet F of tetrahedron Ti through which a line PM connecting points M and P exits Ti, and determining whether a next tetrahedron Ti+1 of said TVM exists along line PM, wherein if no such tetrahedron Ti+1 exists, then point M is outside the TVM, and wherein if Ti+1 exists, determining whether point M is inside tetrahedron Ti+1.
    Type: Application
    Filed: December 20, 2007
    Publication date: August 28, 2008
    Applicant: Siemens Corporate Research, Inc.
    Inventors: Fred S. Azar, Benoit de Roquemaurel