Patents by Inventor Robert Donald Peters

Robert Donald Peters 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 ring artifact repair of magnetic resonance images
    Patent number: 9727953
    Abstract: An apparatus for detecting and repairing a ring artifact in a multi-spectral magnetic resonance image includes an image processor, which is configured to obtain an off-resonance magnetic field map and a deblurred composite image, to calculate a spatial gradient of the image based on the magnetic field map, to kernel search the spatial gradient, to mask the image, based on the kernel search, in order to identify voxels affected by a ring artifact, and to apply a filter in order to smooth intensities of the voxels identified by the image mask.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: August 8, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Weitian Chen, Robert Donald Peters, Zachary William Slavens, Kevin Matthew Koch
  • METHOD AND APPARATUS FOR RING ARTIFACT REPAIR OF MAGNETIC RESONANCE IMAGES
    Publication number: 20170003370
    Abstract: An apparatus for detecting and repairing a ring artifact in a multi-spectral magnetic resonance image includes an image processor, which is configured to obtain an off-resonance magnetic field map and a deblurred composite image, to calculate a spatial gradient of the image based on the magnetic field map, to kernel search the spatial gradient, to mask the image, based on the kernel search, in order to identify voxels affected by a ring artifact, and to apply a filter in order to smooth intensities of the voxels identified by the image mask.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 5, 2017
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: WEITIAN CHEN, ROBERT DONALD PETERS, ZACHARY WILLIAM SLAVENS, KEVIN MATTHEW KOCH
  • Method and apparatus for vibration-related artifact reduction
    Patent number: 7550972
    Abstract: A method and apparatus for reducing vibration-related artifacts in diffusion weighted imaging determines a vibrational frequency of an MR system and modifies scan parameters such that vibrational frequencies induced on the MR system are inconsistent with the vibrational frequency of the MR system. The method and apparatus improves image quality of MR images acquired using diffusion weighted imaging techniques with the MR system. As such, modification and/or redesign of the MR system to reduce vibrational frequency interaction is reduced.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: June 23, 2009
    Assignee: General Electric Company
    Inventors: Joseph K. Maier, Ajeetkumar Gaddipati, Michael J. Radziun, Robert Donald Peters
  • Method and apparatus for vibration-related artifact reduction
    Patent number: 7239140
    Abstract: A method and apparatus for reducing vibration-related artifacts in diffusion weighted imaging determines a vibrational frequency of an MR system and modifies scan parameters such that vibrational frequencies induced on the MR system are inconsistent with the vibrational frequency of the MR system. The method and apparatus improves image quality of MR images acquired using diffusion weighted imaging techniques with the MR system. As such, modification and/or redesign of the MR system to reduce vibrational frequency interaction is reduced.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 3, 2007
    Assignee: General Electric Company
    Inventors: Joseph K. Maier, Ajeetkumar Gaddipati, Michael J. Radziun, Robert Donald Peters
  • Method and apparatus for vibration-related artifact reduction
    Patent number: 7138800
    Abstract: A method and apparatus for reducing vibration-related artifacts in diffusion weighted imaging determines a vibrational frequency of an MR system and modifies scan parameters such that vibrational frequencies induced on the MR system are inconsistent with the vibrational frequency of the MR system. The method and apparatus improves image quality of MR images acquired using diffusion weighted imaging techniques with the MR system. As such, modification and/or redesign of the MR system to reduce vibrational frequency interaction is reduced.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 21, 2006
    Assignee: General Electric Company
    Inventors: Joseph K. Maier, Ajeetkumar Gaddipati, Michael J. Radziun, Robert Donald Peters
  • Method and system of MR imaging with reduced radial ripple artifacts
    Patent number: 7023207
    Abstract: A method and system of MR imaging is disclosed that enables PROPELLER imaging to be feasibly carried out independently of slice orientation or anatomy of interest. The invention is directed to the acquisition of blades of MR data that are rotated about a central region of k-space and reconstructing an image of arbitrary slice orientation from the blades of MR data that is substantially absent of radial ripple artifacts caused by phase aliasing from tissue outside the field of view in the slice plane.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: April 4, 2006
    Assignee: General Electric Company
    Inventors: Ajeetkumar Gaddipati, Robert Donald Peters, Michael R. Hartley
  • METHOD AND SYSTEM FOR RETROSPECTIVE PHASE CORRECTION FOR FAST SPIN ECHO MAGNETIC RESONANCE IMAGING
    Publication number: 20040135578
    Abstract: A phase correction method for MR devices includes collecting non-phase encoded reference data, calculating phase coefficients, and then phase correcting the regular phase-encoded image dataset based on these coefficients. The phase correction method can be used for two dimensional or three dimensional FSE imaging and variants thereof. As the method is conducted after signal acquisition, it is considered a retrospective phase correction.
    Type: Application
    Filed: January 13, 2003
    Publication date: July 15, 2004
    Inventors: Robert Donald Peters, Richard Scott Hinks