Patents by Inventor Sung Tak Chung

Sung Tak Chung 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).

  • Method and apparatus for ultra fast symmetry and SIMD based projection-backprojection for 3D pet image reconstruction
    Patent number: 7456406
    Abstract: A method and apparatus are provided for reconstructing 3D image. The method may include the steps of: detecting a plurality of line of responses (LORs) emitted from an object; transforming the plurality of LORs into first sinogram data; back-projecting the first sinogram data with a plurality of projection angles to produce image data for the object; and projecting the produced image data with the plurality of projection angles to transform the image data into second sinogram data. The back-projecting may include filling pixels of image plane for each of the plurality of projection angles with the first sinogram data and rotating a coordinate axis of the image plane with corresponding projection angle to produce the image data. The projecting may include rotating the image data with corresponding projection angle in an opposite direction before projecting the image data with the plurality of projection angles. The projecting and the back-projecting may use symmetry properties in coordinate space.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: November 25, 2008
    Assignees: Gachon University of Medicine, Science Industry-Academic Cooperation Foundation in Ke Hong
    Inventors: Zang Hee Cho, Young Bo Kim, Cheol Ok Lee, In Ki Hong, Sung Tak Chung, Hang Keun Kim, Young Don Son
  • Method and apparatus for ultra fast symmetry and SIMD based projection-back projection for 3D pet image reconstruction
    Patent number: RE42034
    Abstract: A method and apparatus are provided for reconstructing 3D image. The method may include the steps of: detecting a plurality of line of response (LORs) emitted from an object; transforming the plurality of LORs into first sinogram data; back-projecting the first sinogram data with a plurality of projection angles to produce image data for the object; and projecting the produced image data with the plurality of projection angles to transform the image data into second sinogram data. The back-projecting may include filling pixels of image plane for each of the plurality of projection angles with the first sinogram data and rotating a coordinate axis of the image plane with corresponding projection angle to produce the image data. The projecting may include rotating the image data with corresponding projection angle in an opposite direction before projecting the image data with the plurality of projection angles. The projecting and the back-projecting may use symmetry properties in coordinate space.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: January 18, 2011
    Assignees: Gachon University of Medicine and Science Industry-Academic Cooperation Foundation
    Inventors: Zang Hee Cho, Young Bo Kim, Cheol Ok Lee, In Ki Hong, Sung Tak Chung, Hang Keun Kim, Young Don Son