Patents Represented by Attorney, Agent or Law Firm Richard T. Lyn
  • Patent number: 6661913
    Abstract: The present invention is embodied in systems and methods for determining structure and motion of a three-dimensional (3D) object using two-dimensional (2D) images of the object obtained from multiple sets of views with different projection models, such as from a full perspective view and a weak perspective views. A novel fundamental matrix is derived that embodies the epipolar geometry between a full perspective view and a weak perspective view. The systems and methods of the present invention preferably uses the derived fundamental matrix together with the 2D image information of the full and weak perspective views to digitally reconstruct the 3D object and produce results with multi-resolution processing techniques. These techniques include recovering and refining motion parameters and recovering and refining structure parameters of the fundamental matrix. The results can include, for example, 3D positions of points, camera position between different views, texture maps, and the like.
    Type: Grant
    Filed: June 19, 1999
    Date of Patent: December 9, 2003
    Assignee: Microsoft Corporation
    Inventors: Zhengyou Zhang, Padmanabhan Anandan, Heung-Yeung Shum