Patents by Inventor Yunxuan ZHANG

Yunxuan ZHANG 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).

  • Patent number: 12252476
    Abstract: The present disclosure provides a bio-based epoxy chain extender and a preparation method thereof, belonging to the technical field of chain extenders, and the preparation method includes the following steps: (1) mixing ESO and CD and carrying out catalytic reaction to obtain ESOn-CD; and (2) mixing and heating the ESOn-CD with concentrated sulfuric acid, dropwise adding a mixture of glacial acetic acid and hydrogen peroxide for stirring reaction, and after the stirring reaction, carrying out extraction and separation to remove a solvent to obtain the bio-based epoxy chain extender. The present disclosure also provides a bio-based epoxy chain extender prepared by the preparation method.
    Type: Grant
    Filed: July 4, 2024
    Date of Patent: March 18, 2025
    Assignee: BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
    Inventors: Yunxuan Weng, Caili Zhang, Xiaoqian Diao, Zhirui Ma, Yu Han, Wei Luo
  • Publication number: 20210232806
    Abstract: The disclosure relates to a method and apparatus for image processing, a processor, an electronic device and a storage medium. The method includes: acquiring a reference face image and a reference face pose image; encoding the reference face image to obtain face texture data of the reference face image; performing face key point extraction on the reference face pose image to obtain a first face mask of the reference face pose image; and obtaining a target image according to the face texture data and the first face mask.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Yue He, Yunxuan Zhang, Siwei Zhang, Cheng Li
  • Patent number: 11003890
    Abstract: A method and an apparatus for facial age identification, an electronic device, and a computer readable medium include: obtaining estimated facial age of a person in an image to be identified; selecting N image samples from an image sample set of known age according to the estimated facial age and age of two or more preset age gaps with the estimated facial age, the N being not less than 2; obtaining a comparison result of ages between the image to be identified and the selected N image samples; and obtaining probability information for determining a person's facial age attribute information according to statistical information formed by the comparison result.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 11, 2021
    Assignee: BEIJING SENSETIME TECHNOLOGY DEVELOPMENT CO., LTD
    Inventors: Yunxuan Zhang, Cheng Li
  • Publication number: 20190138787
    Abstract: A method and an apparatus for facial age identification, an electronic device, and a computer readable medium include: obtaining estimated facial age of a person in an image to be identified; selecting N image samples from an image sample set of known age according to the estimated facial age and age of two or more preset age gaps with the estimated facial age, the N being not less than 2; obtaining a comparison result of ages between the image to be identified and the selected N image samples; and obtaining probability information for determining a person's facial age attribute information according to statistical information formed by the comparison result.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Applicant: BEIJING SENSETIME TECHNOLOGY DEVELOPMENT CO., LTD
    Inventors: Yunxuan ZHANG, Cheng LI