Patents by Inventor Igor N. Belykh

Igor N. Belykh 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 for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images
    Patent number: 7174038
    Abstract: A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: February 6, 2007
    Assignee: Eastman Kodak Company
    Inventors: Igor N. Belykh, Craig W. Cornelius
  • Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images
    Patent number: 7050618
    Abstract: A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: May 23, 2006
    Assignee: Eastman Kodak Company
    Inventors: Igor N. Belykh, Craig W. Cornelius
  • Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images
    Publication number: 20030152259
    Abstract: A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: Igor N. Belykh, Craig W. Cornelius