Patents by Inventor Lixing Shi

Lixing Shi 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 quantifying caries
    Patent number: 9773306
    Abstract: A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 26, 2017
    Assignee: Carestream Health, Inc.
    Inventors: Liangliang Pan, Jiayong Yan, Wei Wang, Lixing Shi, Victor C. Wong
  • METHOD FOR QUANTIFYING CARIES
    Publication number: 20140185892
    Abstract: A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area.
    Type: Application
    Filed: March 5, 2014
    Publication date: July 3, 2014
    Applicant: Carestream Health, Inc.
    Inventors: Liangliang Pan, Jiayong Yan, Wei Wang, Lixing Shi, Victor C. Wong
  • Method for quantifying caries
    Patent number: 8768016
    Abstract: A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 1, 2014
    Assignee: Carestream Health, Inc.
    Inventors: Liangliang Pan, Jiayong Yan, Wei Wang, Lixing Shi, Victor C. Wong
  • Method and apparatus for detection of caries
    Patent number: 8520922
    Abstract: A method for forming an enhanced image (60) of a tooth (20) making use of the tooth (20) fluorescence and/or reflectance effects, employs a morphological image processing technique, and reduces susceptibility to overall intensity variations in the image (60).
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: August 27, 2013
    Assignee: Carestream Health, Inc.
    Inventors: Wei Wang, Liangliang Pan, Lixing Shi, Victor C. Wong
  • METHOD AND APPARATUS FOR DETECTION OF CARIES
    Publication number: 20110275034
    Abstract: A method for forming an enhanced image (60) of a tooth (20) making use of the tooth (20) fluorescence and/or reflectance effects, employs a morphological image processing technique, and reduces susceptibility to overall intensity variations in the image (60).
    Type: Application
    Filed: January 20, 2009
    Publication date: November 10, 2011
    Inventors: Wei Wang, Liangliang Pan, Lixing Shi, Victor C. Wong
  • METHOD FOR QUANTIFYING CARIES
    Publication number: 20100322490
    Abstract: A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Inventors: Liangliang Pan, Jiayong Yan, Wei Wang, Lixing Shi, Victor C. Wong