Patents by Inventor Chung Hwan Lee

Chung Hwan 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: 20140245582
    Abstract: The present invention is used to manufacture a camshaft which is used in an engine for a vehicle. In detail, the present invention relates to an apparatus for assembling a cam having a depression with a shaft having a protrusion.
    Type: Application
    Filed: September 27, 2012
    Publication date: September 4, 2014
    Applicant: Mibo Co., Ltd.
    Inventors: Yong Kyoon Kim, Ick Doo Eom, Chung Hwan Lee, Man Yun Go, In Chul Yu
  • Patent number: 8749488
    Abstract: Disclosed herein are an apparatus and method for providing a contactless Graphical User Interface (GUI). The apparatus for providing a contactless GUI includes a basic information management unit, a pointer tracking unit, and a mouse event management unit. The basic information management unit receives finger image information, and generates basic pointer information for a mouse pointer service. The pointer tracking unit analyzes the finger image information based on the basic pointer information, and generates a mouse operation event by tracking a mouse operation in order to control a mouse pointer based on results of the analysis. The mouse event management unit analyzes the mouse operation event, and generates an operation message corresponding to the mouse operation. The pointer tracking unit tracks the mouse operation by calculating the movement distance of the tips of a thumb and an index finger based on the finger image information.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 10, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chung-Hwan Lee, Seung-Woo Nam
  • Publication number: 20120139838
    Abstract: Disclosed herein are an apparatus and method for providing a contactless Graphical User Interface (GUI). The apparatus for providing a contactless GUI includes a basic information management unit, a pointer tracking unit, and a mouse event management unit. The basic information management unit receives finger image information, and generates basic pointer information for a mouse pointer service. The pointer tracking unit analyzes the finger image information based on the basic pointer information, and generates a mouse operation event by tracking a mouse operation in order to control a mouse pointer based on results of the analysis. The mouse event management unit analyzes the mouse operation event, and generates an operation message corresponding to the mouse operation. The pointer tracking unit tracks the mouse operation by calculating the movement distance of the tips of a thumb and an index finger based on the finger image information.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chung-Hwan LEE, Seung-Woo NAM
  • Publication number: 20110149042
    Abstract: Provided is a method for generating stereoscopic image fedback by the interaction with a real world. Even though the method according to the related art interacts the user with the virtual object or forms the stereoscopic image without interacting with the object in the user space by controlling the virtual object using a separate apparatus, the present invention feedbacks the interaction between all the object in the user space including the object and users in the virtual space to the video reproducing system to implement a system for re-processing and reproducing the stereoscopic image, thereby making it possible to produce realistic stereoscopic image.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chung-Hwan LEE, Seung-Woo Nam
  • Publication number: 20110050694
    Abstract: Provided are a system and method for rendering hair image which smoothly and vividly render a fiber type of long and slim object like hair when creating 3D content. The system includes a sampling point setting module, a transparency determination module and a color value determination module. The sampling point setting module sets a plurality of sampling points in a hair geometry region. The transparency determination module determines transparency of a pixel the hair geometry region, on the basis of the sampling point. The color value determination module determines a color value of the pixel on the basis of shading values for each of the sampling points.
    Type: Application
    Filed: December 10, 2009
    Publication date: March 3, 2011
    Inventors: Hye Sun Kim, Yun Ji Ban, Seung Woo Nam, Chung Hwan Lee
  • Publication number: 20100157081
    Abstract: A rendering system includes a data input unit for reading depth information of a deep render buffer obtained by rendering; a camera lens sampling unit for sampling surface data of a lens provided in a camera; a deep render buffer reconstruction unit referring to pixel location information of the deep render buffer to reconstruct a deep render buffer at a new camera position, wherein the camera position corresponds to a sampling result from the camera lens sampling unit. The rendering system further includes a render image generation unit for generating a render image at the camera position from the reconstructed deep render buffer; and an image accumulation unit for accumulating the render image at the camera position.
    Type: Application
    Filed: August 10, 2009
    Publication date: June 24, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hye-Sun KIM, Yun Ji Ban, Chung Hwan Lee, Seung Woo Nam
  • Publication number: 20100128032
    Abstract: A rendering apparatus for performing rendering of cylindrical objects includes: a data input unit image transmitting rendering data of individuals of the cylindrical objects which are classified by thickness when three dimensional model data of the cylindrical objects is input; a first rendering unit for performing an alpha line rendering for thin individuals of the cylindrical objects which are classified by thickness; and a second rendering unit for performing a ribbon triangulation rendering for thick individuals of the cylindrical objects which are classified by thickness. Further, the rendering apparatus includes a storage for integrating first rendering result data transmitted from the first rendering unit with second rendering result data transmitted from the second rendering unit to transmit final rendering result data; and a rendering output unit for outputting the final rendering result data.
    Type: Application
    Filed: May 20, 2009
    Publication date: May 27, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hye-Sun KIM,, Chung Hwan Lee, Yun Ji Ban, Jin Sung Choi
  • Publication number: 20090154834
    Abstract: The rendering system for rendering input image data to composite an image includes an image input unit, an image rendering unit, an image compositing unit. The image input unit subdivides input image data into data segments of a size corresponding to the memory capacity of the rendering system to load the data segments one at a time. The image rendering unit renders the data segments in sequence, and sequentially stores rendering pixel information associated with the rendered results in a buffer. The image compositing unit compares two pieces of stored rendering pixel information to each other as previous rendering pixel information and current rendering pixel information, updates rendering pixel information according to the comparison result, and composites a final image according to the updated rendering pixel information.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 18, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yun Ji Ban, Hye-Sun Kim, Chung Hwan Lee, Jin Sung Choi