Patents by Inventor Beiwen Li

Beiwen Li 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).

  • Calibration arrangement for structured light system using a tele-centric lens
    Patent number: 11356650
    Abstract: A vision system having a telecentric lens. The vision system includes a projector having a non-telecentric pin-hole lens, a camera having a telecentric lens positioned a distance away from the projector, and a processor. The processor controls the camera and the projector and is configured to calibrate the camera and projector.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 7, 2022
    Assignee: Purdue Research Foundation
    Inventors: Song Zhang, Beiwen Li
  • CALIBRATION ARRANGEMENT FOR STRUCTURED LIGHT SYSTEM USING A TELE-CENTRIC LENS
    Publication number: 20200099915
    Abstract: A vision system having a telecentric lens. The vision system includes a projector having a non-telecentric pin-hole lens, a camera having a telecentric lens positioned a distance away from the projector, and a processor. The processor controls the camera and the projector and is configured to calibrate the camera and projector.
    Type: Application
    Filed: July 29, 2019
    Publication date: March 26, 2020
    Applicant: Purdue Research Foundation
    Inventors: Song Zhang, Beiwen Li
  • Calibration arrangement for structured light system using a tele-centric lens
    Patent number: 10412365
    Abstract: A vision system having a telecentric lens. The vision system includes a projector having a non-telecentric pin-hole lens, a camera having a telecentric lens positioned a distance away from the projector, and a processor. The processor controls the camera and the projector and is configured to calibrate the camera and projector.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 10, 2019
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Song Zhang, Beiwen Li
  • CALIBRATION ARRANGEMENT FOR STRUCTURED LIGHT SYSTEM USING A TELE-CENTRIC LENS
    Publication number: 20170085860
    Abstract: A vision system having a telecentric lens. The vision system includes a projector having a non-telecentric pin-hole lens, a camera having a telecentric lens positioned a distance away from the projector, and a processor. The processor controls the camera and the projector and is configured to calibrate the camera and projector.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 23, 2017
    Applicant: Purdue Research Foundation
    Inventors: Song Zhang, Beiwen Li