Patents by Inventor Tang QIULIN

Tang QIULIN 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).

  • Apparatus and method for registration and reprojection-based material decomposition for spectrally resolved computed tomography
    Patent number: 10111638
    Abstract: A method and apparatus is provided to perform material decomposition based on spectral computed tomography (CT) projection data generated using registered reconstructed images. Registration is performed in the image domain, whereas material decomposition is performed in the sinogram domain. In the sinogram domain, material decomposition can include beam-hardening corrections. For at least two energy components, CT images are reconstructed, and registration is performed among the CT images. In certain implementations, the registered images are forward projected, and material decomposition is based on the resultant forward projections. In other implementations, motion images are generated from differences between the reconstructed CT images pre- and post-registration. The projection data is then corrected using forward projections of the motion images, and material decomposition is performed using the motion-corrected projection data.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: October 30, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tang Qiulin, Yu Zhou, Satoru Nakanishi, Richard Thompson
  • APPARATUS AND METHOD FOR REGISTRATION AND REPROJECTION-BASED MATERIAL DECOMPOSITION FOR SPECTRALLY RESOLVED COMPUTED TOMOGRAPHY
    Publication number: 20170340304
    Abstract: A method and apparatus is provided to perform material decomposition based on spectral computed tomography (CT) projection data generated using registered reconstructed images. Registration is performed in the image domain, whereas material decomposition is performed in the sinogram domain. In the sinogram domain, material decomposition can include beam-hardening corrections. For at least two energy components, CT images are reconstructed, and registration is performed among the CT images. In certain implementations, the registered images are forward projected, and material decomposition is based on the resultant forward projections. In other implementations, motion images are generated from differences between the reconstructed CT images pre- and post-registration. The projection data is then corrected using forward projections of the motion images, and material decomposition is performed using the motion-corrected projection data.
    Type: Application
    Filed: May 24, 2016
    Publication date: November 30, 2017
    Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tang QIULIN, Yu ZHOU, Satoru NAKANISHI, Richard THOMPSON