Patents by Inventor Jonghui HAN

Jonghui HAN 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).

  • Patent number: 11902492
    Abstract: An image processing method includes: calculating a rotation matrix to eliminate vertical parallax by converting stereo image captured by stereo camera as if it is image captured by camera rotated about an origin of camera coordinate system, wherein the stereo image includes left image obtained by left camera and right image obtained by right camera; calculating a rotation matrix to adjust the horizontal parallax of the left image and a rotation matrix to adjust the horizontal parallax of the right image; calculating a geometric transformation matrix for the stereo image based on each camera characteristic matrix representing lens characteristics, the rotation matrix for eliminating vertical parallax, and the rotation matrices for adjusting horizontal parallax; and generating new stereo image in which vertical parallax is eliminated and horizontal parallax is adjusted by performing image warping for the stereo image captured by the stereo camera based on the calculated geometric transformation matrix.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: February 13, 2024
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Seung-Ho Jung, Hocheol Shin, Chang-Hoi Kim, You-Rak Choi, Dongseok Ryu, Jonghui Han
  • Patent number: 11794356
    Abstract: An electric gripping device is provided. The electric gripping device improves a coupling relationship between a two-fingered clamper module using a four-joint link and the actuator module to facilitate assembling and disassembling of the actuator module and the clamper module and minimizes a length of the electric gripper to easily secure a robot's work space or work direction when being connected to the robot.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 24, 2023
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Hocheol Shin, Seung-Ho Jung, You-Rak Choi, Dongseok Ryu, Jonghui Han
  • Publication number: 20210314542
    Abstract: An image processing method includes: calculating a rotation matrix to eliminate vertical parallax by converting stereo image captured by stereo camera as if it is image captured by camera rotated about an origin of camera coordinate system, wherein the stereo image includes left image obtained by left camera and right image obtained by right camera; calculating a rotation matrix to adjust the horizontal parallax of the left image and a rotation matrix to adjust the horizontal parallax of the right image; calculating a geometric transformation matrix for the stereo image based on each camera characteristic matrix representing lens characteristics, the rotation matrix for eliminating vertical parallax, and the rotation matrices for adjusting horizontal parallax; and generating new stereo image in which vertical parallax is eliminated and horizontal parallax is adjusted by performing image warping for the stereo image captured by the stereo camera based on the calculated geometric transformation matrix.
    Type: Application
    Filed: August 1, 2019
    Publication date: October 7, 2021
    Inventors: Seung-Ho JUNG, Hocheol SHIN, Chang-Hoi KIM, You-Rak CHOI, Dongseok RYU, Jonghui HAN
  • Publication number: 20210162607
    Abstract: An embodiment of the present invention to provide an electric gripping device that improves a coupling relationship between a two-fingered clamper module using a four-joint link and the actuator module to facilitate assembling and disassembling of the actuator module and the clamper module and minimizes a length of the electric gripper to easily secure a robot's work space or work direction when being connected to the robot.
    Type: Application
    Filed: July 24, 2019
    Publication date: June 3, 2021
    Inventors: Hocheol SHIN, Seung-Ho JUNG, You-Rak CHOI, Dongseok RYU, Jonghui HAN