Patents by Inventor JICHEN CAI

JICHEN CAI 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).

  • Drowsy driving detection method and system thereof, and computer device
    Patent number: 12488601
    Abstract: A drowsy driving detection method comprises: acquiring a side face image of a currently seated driver collected by a camera module; performing face recognition on the side face image to obtain side face feature parameters, and determining, according to the side face feature parameters, whether an ID file corresponding to the currently seated driver exists in a driver ID library; and if yes, periodically acquiring a side face image of the driver in the current period collected by the camera module, obtaining eye movement feature parameters of the driver in the current period according to the side face image of the current period, and determining whether the driver is driving while drowsy according to a comparison result between the eye movement feature parameters of the current period and the normal eye movement feature parameters of the driver.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: December 2, 2025
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Ying Zhang, Tianlai Wu, Jichen Cai, Dongjian He, Jinzhou Sha, Chao Chen
  • DROWSY DRIVING DETECTION METHOD AND SYSTEM THEREOF, AND COMPUTER DEVICE
    Publication number: 20230230397
    Abstract: A drowsy driving detection method comprises: acquiring a side face image of a currently seated driver collected by a camera module; performing face recognition on the side face image to obtain side face feature parameters, and determining, according to the side face feature parameters, whether an ID file corresponding to the currently seated driver exists in a driver ID library; and if yes, periodically acquiring a side face image of the driver in the current period collected by the camera module, obtaining eye movement feature parameters of the driver in the current period according to the side face image of the current period, and determining whether the driver is driving while drowsy according to a comparison result between the eye movement feature parameters of the current period and the normal eye movement feature parameters of the driver.
    Type: Application
    Filed: June 1, 2021
    Publication date: July 20, 2023
    Inventors: YING ZHANG, TIANLAI WU, JICHEN CAI, DONGJIAN HE, JINZHOU SHA, CHAO CHEN