Patents by Inventor Clay Christopher Smith

Clay Christopher Smith 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).

  • Rotation center identifying method and apparatus, ring artifact correction method, and X-ray diagnostic apparatus employing the same
    Patent number: 8260017
    Abstract: The influences of the vibrations and the like of a rotational radiography system are corrected with respect to a projection image for each projection direction which contains an artificial artifact, and volume data containing only a ring artifact is generated by image reconstruction using the projection images. A ring center is determined by using this volume data, and polar coordinate conversion of an actual radiographed image is executed by using the ring center as an origin, thereby extracting a signal (ring artifact) parallel to an angular axis.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 4, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Satoru Ohishi, Clay Christopher Smith
  • ROTATION CENTER IDENTIFYING METHOD, RING ARTIFACT CORRECTION METHOD, ROTATION CENTER IDENTIFYING APPARATUS, X-RAY DIAGNOSTIC APPARATUS, RECORDING MEDIUM ON WHICH PROGRAM FOR EXECUTING ROTATION CENTER IDENTIFICATION IS RECORDED AND RECORDING MEDIUM ON WHICH PROGRAM FOR EXECUTING RING ARTIFACT CORRECTION IS RECORDED
    Publication number: 20100208969
    Abstract: The influences of the vibrations and the like of a rotational radiography system are corrected with respect to a projection image for each projection direction which contains an artificial artifact, and volume data containing only a ring artifact is generated by image reconstruction using the projection images. A ring center is determined by using this volume data, and polar coordinate conversion of an actual radiographed image is executed by using the ring center as an origin, thereby extracting a signal (ring artifact) parallel to an angular axis.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 19, 2010
    Inventors: Satoru Ohishi, Clay Christopher Smith
  • X-ray computed tomography apparatus
    Patent number: 6944261
    Abstract: An X-ray computed tomography apparatus including an X-ray source, a data acquisition unit, an X-ray detection unit, a reconstruction unit, a creation unit, and a display unit. An X-ray radiated toward an object by the X-ray source is detected to generate a corresponding signal by the X-ray detection unit. According to the signal, data is acquired by the data acquisition unit. A reconstruction unit reconstructs a tomographic image, while a creation unit creates a plane image based on the acquired data A display unit displays the tomographic image and the plane image.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: September 13, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Adachi, Thomas Charles Judd, Clay Christopher Smith
  • X-ray computed tomography apparatus
    Publication number: 20040208275
    Abstract: An X-ray computed tomography apparatus including an X-ray source, a data acquisition unit, an X-ray detection unit, a reconstruction unit, a creation unit, and a display unit. An X-ray radiated toward an object by the X-ray source is detected to generate a corresponding signal by the X-ray detection unit. According to the signal, data is acquired by the data acquisition unit. A reconstruction unit reconstructs a tomographic image, while a creation unit creates a plane image based on the acquired data. A display unit displays the tomographic image and the plane image.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 21, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akira Adachi, Thomas Charles Judd, Clay Christopher Smith