Patents by Inventor Eugene Clifford Williams

Eugene Clifford Williams 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 system for providing defective cell correction in a medical imaging device
    Patent number: 7602951
    Abstract: Methods and systems for scanning a patient by using a medical imaging device are provided. The methods include determining a defective cell in a row n of a detector of the medical imaging device, determining a mode of operation of the medical imaging device, estimating the output of the defective cell using the determined mode of operation and at least one of a conjugate sample of the defective cell, an adjusted conjugate sample of the defective cell, and an estimate of the output of the defective cell using an output of a corresponding cell in an adjacent row and reconstructing an image of the patient using the estimated value of the defective cell.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: October 13, 2009
    Assignee: General Electric Company
    Inventors: Jiang Hsieh, Paavana Sainath, James Watkins Madine, Charles Hugh Shaughnessy, Eugene Clifford Williams, Abdelaziz Ikhlef
  • System and method for defective detector cell and DAS channel correction
    Patent number: 7142636
    Abstract: A method and system for an improved data acquisition system with an image detector array and an image processing system which finds a malfunctioning cell, interpolates a signal for the malfunctioning cell using neighboring channels of the cell, and corrects the interpolation with an error rate found in performing interpolations on neighboring rows with cells which are not malfunctioning. The image processing system may include a DAS and a reconstruction system. The step of finding a malfunctioning cell may be accomplished through a variety of methods, such as measuring discrepancies between a cell's and its neighboring cell's average readings over time and exposing the cells to x-rays which should produce similar readings in all the cells and comparing the cells' signals, looking for discrepancies. The step of interpolating and the step of correcting may take into consideration cells within the same projection view as the malfunctioning cell.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: November 28, 2006
    Assignee: General Electric Company
    Inventors: Jiang Hsieh, Eugene Clifford Williams
  • Methods and apparatus for dynamical helical scanned image production
    Patent number: 6977984
    Abstract: The present invention provides a method for producing images of an object. The method includes dynamically helically scanning an object on a moving table utilizing a scanning imaging system. During the scan, projection views of the object are acquired and stored together with corresponding table locations. A plane for reconstruction of an image of the object is selected. The stored table locations are used to determine geometric variables applicable to the stored projection views; and the stored projection views are filtered and backprojected utilizing the geometrical variables to reconstruct an image of the object at the reconstruction plane.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: December 20, 2005
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Jiang Hsieh, Eugene Clifford Williams, Thomas Louis Toth