Patents by Inventor Depin Chen

Depin Chen 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).

  • Publication number: 20180365339
    Abstract: There is provided an application classification method and apparatus. The method includes: calculating a correlation coefficient between to-be-classified applications, wherein the to-be-classified applications are located in one or more known classification systems; constructing a node diagram for the to-be-classified applications based on the correlation coefficient; and dividing the node diagram to obtain one or more classification diagrams.
    Type: Application
    Filed: August 29, 2018
    Publication date: December 20, 2018
    Inventors: Guangyuan HUANG, Depin CHEN, Suyu LIU
  • Patent number: 10068018
    Abstract: The present invention provides a method and device for detecting the presence of logo patterns in product images. The method comprises the steps of retrieving one or more logo patterns from a logo pattern library, each of the one or more logo patterns identifying a respective product brand; retrieving a product image; calculating for each of the one or more logo patterns, a matching degree, the matching degree representing a degree to which each logo pattern is present in the product image; selecting as a selected logo pattern, the logo pattern having the greatest calculated matching degree; and determining that the product image includes the selected logo pattern if the matching degree of the selected logo pattern is greater than a first threshold.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 4, 2018
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Zengming Zhang, Depin Chen
  • Patent number: 9639844
    Abstract: A method and an apparatus of identifying a website user are disclosed herein.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: May 2, 2017
    Assignee: Alibaba Group Holding Limited
    Inventors: Guli Lin, Depin Chen, Zhiqiang Chen
  • Publication number: 20170069077
    Abstract: The present invention provides a method and device for detecting the presence of logo patterns in product images. The method comprises the steps of retrieving one or more logo patterns from a logo pattern library, each of the one or more logo patterns identifying a respective product brand; retrieving a product image; calculating for each of the one or more logo patterns, a matching degree, the matching degree representing a degree to which each logo pattern is present in the product image; selecting as a selected logo pattern, the logo pattern having the greatest calculated matching degree; and determining that the product image includes the selected logo pattern if the matching degree of the selected logo pattern is greater than a first threshold.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 9, 2017
    Inventors: Zengming ZHANG, Depin CHEN
  • Patent number: 9104945
    Abstract: Detecting a specific image applicable at a website includes detecting an existence of a frame of the specific image. The specific image applicable at the website is obtained. An edge characteristic value of each pixel of the image is calculated. A pixel whose edge characteristic value is a local maximum value is found along a slope direction of each pixel. When the edge characteristic value of the found pixel is larger than a preset characteristic value threshold, a preset color is used to fill the pixel. The specific image is scanned. An amount of pixels whose color is the preset color at each scanning line of the specific image is counted. When the amount of such pixels at a scanning line is larger than a preset number threshold, a line where the scanning line locates is determined as an edge line of the frame.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: August 11, 2015
    Assignee: Alibaba Group Holding Limited
    Inventors: Ningqing Liang, Feijun Jiang, Zengming Zhang, Depin Chen
  • Publication number: 20140376806
    Abstract: Detecting a specific image applicable at a website includes detecting an existence of a frame of the specific image. The specific image applicable at the website is obtained. An edge characteristic value of each pixel of the image is calculated. A pixel whose edge characteristic value is a local maximum value is found along a slope direction of each pixel. When the edge characteristic value of the found pixel is larger than a preset characteristic value threshold, a preset color is used to fill the pixel. The specific image is scanned. An amount of pixels whose color is the preset color at each scanning line of the specific image is counted. When the amount of such pixels at a scanning line is larger than a preset number threshold, a line where the scanning line locates is determined as an edge line of the frame.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 25, 2014
    Inventors: Ningqing Liang, Feijun Jiang, Zengming Zhang, Depin Chen
  • Publication number: 20140201048
    Abstract: A method and an apparatus of identifying a website user are disclosed herein.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: Alibaba Group Holding Limited
    Inventors: Guli Lin, Depin Chen, Zhiqiang Chen