Patents by Inventor Brent J. Liu

Brent J. Liu 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).

  • Patent number: 6711282
    Abstract: An automatic segmentation module with an open architecture that automatically generates a contour of a target bone based on a digital image. In one embodiment, the digital image can include an extremity, such as a hand with three digits and a calibration wedge. The automatic segmentation module receives the digital image as an input, and automatically segments the target bone by utilizing an object-oriented approach. This approach extracts intermediate target objects and uses these intermediate target objects to refine or limit the search space in order to extract the final target object.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: March 23, 2004
    Assignee: Compumed, Inc.
    Inventors: Brent J. Liu, Hyeonjoon Shim, David Edelstein, Eric Duff, Xiaoli Bi
  • Patent number: 6246745
    Abstract: A method and apparatus for measuring bone density in a body part. The method and apparatus receive and process a digital image that includes at least one digit, a calibration wedge, and a target bone to compute the density of the target bone. Based on the digital image, a contour for the digit and the target bone are automatically extracted and displayed for the user. A user is then provided an opportunity to input information via an easy-to-use graphical user interface. The contour of the target bone is then automatically re-computed based on the user input. Then, the bone mineral density of the target bone is computed based on the re-computed contour of the target bone.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: June 12, 2001
    Assignee: CompuMed, Inc.
    Inventors: Xiaoli Bi, David Edelstein, Brent J. Liu, Louai Al-Dayeh