Patents by Inventor Yonghua Zhan

Yonghua Zhan 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).

  • Two-Mode Raman Optical Projection Tomography System
    Publication number: 20190242824
    Abstract: The invention discloses a two-mode Raman optical projection tomography system. Samples are irradiated by the laser beam after the beam being expanded by beam expander. Optical signal of each mode will be separated by the beam splitter. Sparse sampling method is used for signal collection. Optical transmission projection signal acquisition module collects transmitted light of samples to form optical projection image. Multi-spectral Raman scattering signal acquisition module collects Raman scattering light produced by samples. Background noise is removed from the collected data. Sparse sampling data are reconstructed by using algebraic reconstruction method (ART) based on TV minimization. The three-dimensional structure image obtained by reconstruction and the three-dimensional chemical compositions image are fused to obtain the three-dimensional volume image with multiple information.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 8, 2019
    Applicant: Xidian University
    Inventors: Xueli CHEN, Yonghua ZHAN, Nan WANG, Honghao CAO, Duofang CHEN, Shouping ZHU, Jimin LIANG
  • Two-mode Raman optical projection tomography system
    Patent number: 10365219
    Abstract: The invention discloses a two-mode Raman optical projection tomography system. Samples are irradiated by the laser beam after the beam being expanded by beam expander. Optical signal of each mode will be separated by the beam splitter. Sparse sampling method is used for signal collection. Optical transmission projection signal acquisition module collects transmitted light of samples to form optical projection image. Multi-spectral Raman scattering signal acquisition module collects Raman scattering light produced by samples. Background noise is removed from the collected data. Sparse sampling data are reconstructed by using algebraic reconstruction method (ART) based on TV minimization. The three-dimensional structure image obtained by reconstruction and the three-dimensional chemical compositions image are fused to obtain the three-dimensional volume image with multiple information.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: July 30, 2019
    Assignee: XIDIAN UNIVERSITY
    Inventors: Xueli Chen, Yonghua Zhan, Nan Wang, Honghao Cao, Duofang Chen, Shouping Zhu, Jimin Liang