Patents by Inventor Bon-Ki Koo

Bon-Ki Koo 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: 20060120594
    Abstract: Provided is an apparatus and method for determining stereo disparity based on two-path dynamic programming and GGCP. The apparatus includes a pre-processing unit for analyzing texture distribution of an input image by using a Laplacian of Gaussian (LOG) filter and dividing the input image into a homogeneous region and a non-homogeneous region; a local matching unit for determining candidate disparities to be included in an each pixel of all pixels; a local post-processing unit for removing candidate disparities in a pixel of low reliability by performing a visibility test betweens candidate disparities in each pixel to improve the reliability of the candidate disparity; and a global optimizing unit for determining a final disparity for candidate disparities in an each pixel by performing a dynamic programming.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 8, 2006
    Inventors: Jae-Chul Kim, Chang-Woo Chu, Bon-Ki Koo, Byoung-Tae Choi, Hyun-Bin Kim
  • Publication number: 20040095385
    Abstract: A virtual reality embodying system uses 2D images and HDRI data taken of a target object through a camera to embody virtual reality. A modeling unit compares the 2D image's coordinate with a real coordinate to calculate a transform matrix, calculates a vanishing point of a reference vector, uses the vanishing point to calculate a camera matrix, uses the camera matrix and the transform matrix to calculate a rotation matrix and a translation matrix, and uses the rotation matrix and the translation matrix to model the 2D image into a virtual model. A rendering unit uses the HDRI data as texture to render the virtual model, and embodies the HDRI into an extended VRML node to apply the virtual model to the VRML environment.
    Type: Application
    Filed: April 1, 2003
    Publication date: May 20, 2004
    Inventors: Bon-Ki Koo, Sung-Ye Kim, Hae-Dong Kim, Jae-Chul Kim, Byoung-Tae Choi
  • Publication number: 20030120823
    Abstract: A client system for implementing a 3D virtual reality by using X3D (extensible 3D) data provided from a service server includes an applet, a communication module, and a browsing means. The applet communicates with the service server to receive the X3D data and transmit the received X3D data. The communication module is connected to the applet in order to provide a communication between the service server and a client. The browsing means parses the X3D data received through the communication module to construct a scene graph; conducts a rendering of the scene graph to have a predetermined form; and, then, displays the scene graph on a display window of the client.
    Type: Application
    Filed: April 29, 2002
    Publication date: June 26, 2003
    Inventors: Sung Ye Kim, Bon Ki Koo, Hae-Dong Kim, Byoung Tae Choi
  • Publication number: 20020080139
    Abstract: An apparatus for interactive model generation using multi-images includes an image capturing means for capturing an arbitrary object as a 2D image using a camera, a modeler graphic user interface means for providing a 3D primitive model granting interactive relation of data between 2D and 3D, a 3D model generation means for, matching a predetermined 3D primitive model and the 2D image obtained from the image capturing means, a texture rendering means for correcting errors generated in capturing the image and an interactive animation means for adding and editing animations of various types at the 3D model for the 2D images.
    Type: Application
    Filed: April 24, 2001
    Publication date: June 27, 2002
    Inventors: Bon-Ki Koo, Jong-Seung Park, Min-Suk Lee, Kwang-Man Oh