Patents by Inventor Dong Chan CHO

Dong Chan CHO 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).

  • Apparatus and method for eye tracking
    Patent number: 9426447
    Abstract: A gaze tracking apparatus and method are provided that may calculate a three-dimensional (3D) position of a user using at least two wide angle cameras, may perform panning, tilting, and focusing based on position information of the user and eye region detection information, using a narrow angle camera, may detect pupil center information and corneal reflected light information from an eye image acquired through an operation of the narrow angle camera, and may finally calculate gaze position information from the pupil center information and the corneal reflected light information.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: August 23, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hee Kyung Lee, In Jae Lee, Ji Hun Cha, Whoi Yul Kim, Dong Chan Cho
  • APPARATUS AND METHOD FOR EYE TRACKING
    Publication number: 20140098198
    Abstract: A gaze tracking apparatus and method are provided that may calculate a three-dimensional (3D) position of a user using at least two wide angle cameras, may perform panning, tilting, and focusing based on position information of the user and eye region detection information, using a narrow angle camera, may detect pupil center information and corneal reflected light information from an eye image acquired through an operation of the narrow angle camera, and may finally calculate gaze position information from the pupil center information and the corneal reflected light information.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 10, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hee Kyung LEE, In Jae LEE, Ji Hun CHA, Whoi Yul KIM, Dong Chan CHO