Patents by Inventor Guifang Duan

Guifang Duan 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).

  • Image processing method, an apparatus therefor and a tomographic apparatus for removing artifacts from a sectional image
    Patent number: 8520974
    Abstract: A tomographic apparatus of this invention includes a dividing unit for dividing a sectional image into a pixel group including artifacts and a pixel group not including artifacts by carrying out an independent component analysis (ICA) of the artifacts, and a pixel group processing unit for applying a smoothing filter as a predetermined process relating to correction only with respect to the above pixel group including the artifacts, whereby a correction process is carried out to remove the artifacts. Thus, the artifacts can be removed stably.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: August 27, 2013
    Assignees: Shimadzu Corporation, The Ritsumeikan Trust
    Inventors: Akinori Fujita, Yen-Wei Chen, Guifang Duan
  • IMAGE PROCESSING METHOD, AN APPARATUS THEREFOR AND A TOMOGRAPHIC APPARATUS
    Publication number: 20100284599
    Abstract: A tomographic apparatus of this invention includes a dividing unit for dividing a sectional image into a pixel group including artifacts and a pixel group not including artifacts by carrying out an independent component analysis (ICA) of the artifacts, and a pixel group processing unit for applying a smoothing filter as a predetermined process relating to correction only with respect to the above pixel group including the artifacts, whereby a correction process is carried out to remove the artifacts. Thus, the artifacts can be removed stably.
    Type: Application
    Filed: January 11, 2008
    Publication date: November 11, 2010
    Inventors: Akinori Fujita, Yen-Wei Chen, Guifang Duan