Patents by Inventor Ji Hyung Lee

Ji Hyung Lee 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: 20040119716
    Abstract: The present invention relates to an apparatus and method for a high-speed marker-free motion capture, which is capable of powerfully detecting a body's feature points corresponding to a body's end portions such as a head, hands, feet, trunk, arms and legs at a high speed in an illumination change or background or noises of cameras. The extracted feature points of the body can be directly tracked stably in a 3-dimensional space. The position errors of the feature points due to the change of the illumination conditions or a shadow can be automatically corrected and the feature points can be stably tracked with respect to overlapping and disappearance of the feature points.
    Type: Application
    Filed: May 28, 2003
    Publication date: June 24, 2004
    Inventors: Chang Joon Park, Ji Hyung Lee, Do-Hyung Kim, Seung Woo Nam, Seong Min Baek, In Ho Lee
  • Publication number: 20030122831
    Abstract: In a method for controlling a posture of an articulated object, a user inputs an initial configuration of the object, a base point, an end point, a target point and a method for updating the posture. It is determined whether the number of joints positioned between the base and the end points is larger than or equal to three. If the number is smaller than or equal to two, it is determined whether the method for updating the posture is a two-segment or three-segment based method or another method for moving an intermediate end point. If the method is two-segment or three-segment based, the number is rechecked. If the number is smaller than or equal to two, the posture is modified according to the two-segment or three-segment based method. If the posture satisfies a predetermined condition, it is displayed on a screen.
    Type: Application
    Filed: June 12, 2002
    Publication date: July 3, 2003
    Inventors: Il-Kwon Jeong, Ji Hyung Lee, Chang Joon Park, Do-Hyung Kim, Seung Woo Nam, In Ho Lee
  • Publication number: 20020130862
    Abstract: Disclosed are a system and method for transforming a shape of a virtual object in a virtual reality environment through the use of a motion and posture of virtual hand/fingers, and a contact condition with the virtual object, to thereby model the virtual object in the environment, without an additional acquirement of tools, which comprises a finger motion detector 110 and a hand motion detector 120 mounted on the actual hands/fingers of a user, for detecting a motion and posture of the actual hands/fingers; and a modeling system 130 for calculating a spatial region where virtual hand/fingers is contacted with the virtual object, which corresponds to the detected motion and posture of the actual hands/fingers, and transforming the virtual object by the calculated spatial region, thereby modeling the virtual object.
    Type: Application
    Filed: November 29, 2001
    Publication date: September 19, 2002
    Inventors: Ji Hyung Lee, Do-Hyung Kim, In Ho Lee, Weon Geun Oh
  • Publication number: 20020109666
    Abstract: An input device for use with a computer system is provided with a station connected to the computer system, supplied with an electric power therefrom, transmitting data of a plurality of connector for receiving various key value entries, which are formed on right, left, front and rear sides of the station, and peripheral devices connected to the computer system, controlling ports for communicating with the outside peripheral devices, and outputting input/output key values and data after process to the computer system, and a key pad by which the key entries for different purposes can be input via the connector of the station.
    Type: Application
    Filed: May 30, 2001
    Publication date: August 15, 2002
    Inventors: Ji-Hyung Lee, Jong-min Park, Sang-Sug Lee, II-Kwon Youm
  • Patent number: 6149435
    Abstract: The present invention is related to a system which is portable and attache the body of a trainee so that the trainee can practice navigating of a model airplane at an arbitrary location, contrary to the system of a large-sized airplane. According to an object of the present invention there is provided a trainee navigates a model airplane virtually by simulating a model airplane using a computer by combining the three-dimensional virtual image of a model airplane and the actual image of the training site by a computer.
    Type: Grant
    Filed: December 24, 1998
    Date of Patent: November 21, 2000
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chan Jong Park, Jin Sung Choi, Man Kyu Sung, Ji Hyung Lee, Sang Won Kim, Dong Hyun Kim, Jung Kak Kim, Chan Su Lee