Patents by Inventor Cunyi ZHANG

Cunyi 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).

  • Method and device for verifying image and video
    Patent number: 11625819
    Abstract: A method for verifying an image can include: acquiring a first feature point set of a source image and a second feature point set of a target image; determining a target local feature point pair based on the first feature point set and the second feature point set; determining a mapped point of the first feature point on the target image; determining a distance between a second feature point and the mapped point; acquiring a quantity of reference local feature point pairs; and determining that the target image is an image acquired by copying the source image based on the quantity being greater than a target quantity.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: April 11, 2023
    Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Yong Yuan, Yan Li, An Liu, Jie Yang, Bingqing Ke, Yanjun Ma, Cunyi Zhang, Dong Ding
  • METHOD AND DEVICE FOR VERIFYING IMAGE AND VIDEO
    Publication number: 20210118119
    Abstract: A method for verifying an image can include: acquiring a first feature point set of a source image and a second feature point set of a target image; determining a target local feature point pair based on the first feature point set and the second feature point set; determining a mapped point of the first feature point on the target image; determining a distance between a second feature point and the mapped point; acquiring a quantity of reference local feature point pairs; and determining that the target image is an image acquired by copying the source image based on the quantity being greater than a target quantity.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 22, 2021
    Inventors: Yong YUAN, Yan LI, An LIU, Jie YANG, Bingqing KE, Yanjun MA, Cunyi ZHANG, Dong DING