Patents by Inventor Greg T. H. Chien

Greg T. H. Chien 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: 8406513
    Abstract: A method and computer workstation are disclosed which determine the location in the ground space of selected point in a digital image of the earth obtained by an airborne camera. The method includes the steps of: (a) performing independently and in parallel a recursive partitioning of the image space and the ground space into successively smaller quadrants until a pixel coordinate in the image assigned to the selected point is within a predetermined limit (?) of the center of a final recursively partitioned quadrant in the image space. The method further includes a step of (b) calculating a geo-location of the point in the ground space corresponding to the selected point in the image space from the final recursively partitioned quadrant in the ground space corresponding to the final recursively partitioned quadrant in the image space.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: March 26, 2013
    Assignee: Goodrich Corporation
    Inventor: Greg T. H. Chien
  • Publication number: 20120163665
    Abstract: A method and computer workstation are disclosed which determine the location in the ground space of selected point in a digital image of the earth obtained by an airborne camera. The method includes the steps of: (a) performing independently and in parallel a recursive partitioning of the image space and the ground space into successively smaller quadrants until a pixel coordinate in the image assigned to the selected point is within a predetermined limit (?) of the center of a final recursively partitioned quadrant in the image space. The method further includes a step of (b) calculating a geo-location of the point in the ground space corresponding to the selected point in the image space from the final recursively partitioned quadrant in the ground space corresponding to the final recursively partitioned quadrant in the image space.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 28, 2012
    Inventor: Greg T.H. Chien
  • Patent number: 8155433
    Abstract: A method and computer workstation are disclosed which determine the location in the ground space of selected point in a digital image of the earth obtained by an airborne camera. The image is rectangular and has four corners and corresponds to an image space. The image is associated with data indicating the geo-location coordinates for the points in the ground space corresponding to the four corners of the image, e.g., an image formatted in accordance with the NITF standard. The method includes the steps of: (a) performing independently and in parallel a recursive partitioning of the image space and the ground space into successively smaller quadrants until a pixel coordinate in the image assigned to the selected point is within a predetermined limit (?) of the center of a final recursively partitioned quadrant in the image space.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: April 10, 2012
    Assignee: Goodrich Corporation
    Inventor: Greg T. H. Chien
  • Publication number: 20100008565
    Abstract: A method and computer workstation are disclosed which determine the location in the ground space of selected point in a digital image of the earth obtained by an airborne camera. The image is rectangular and has four corners and corresponds to an image space. The image is associated with data indicating the geo-location coordinates for the points in the ground space corresponding to the four corners of the image, e.g., an image formatted in accordance with the NITF standard. The method includes the steps of: (a) performing independently and in parallel a recursive partitioning of the image space and the ground space into successively smaller quadrants until a pixel coordinate in the image assigned to the selected point is within a predetermined limit (?) of the center of a final recursively partitioned quadrant in the image space.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 14, 2010
    Applicant: Recon/Optical, Inc.
    Inventor: Greg T.H. Chien