Patents by Inventor Gun Bang

Gun Bang 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: 9143796
    Abstract: Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 22, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gun Bang, Gi-Mun Um, Taeone Kim, Eun-Young Chang, Namho Hur, Jin-Woong Kim, Soo-In Lee
  • Publication number: 20150264398
    Abstract: Disclosed is a method and apparatus for decoding video data. The method for decoding video data includes receiving coded video data including multi-view video data and depth data corresponding to the video data, acquiring motion data for inter-view prediction of a coding unit of the coded video data from the depth data, and performing inter-view prediction based on the motion data, and restoring video data according to the multi-view video data including the coding unit and the depth data based on the motion prediction.
    Type: Application
    Filed: October 8, 2013
    Publication date: September 17, 2015
    Inventors: Gun Bang, Won Sik Cheong, Nam Ho Hur, Kyung Yong Kim, Gwang Hoon Park, Young Su Heo
  • Patent number: 9124863
    Abstract: A device for creating multi-view video contents includes a virtual view position and distribution unit that calculates a plurality of virtual views corresponding to the number of predetermined virtual views based on input information and distributes the calculated positions of the plurality of virtual views to a plurality of view synthesis processing units; a view synthesis processor that operates the plurality of view synthesis processing units in parallel, allows each of the view synthesis processing units to create at least one virtual view video corresponding to a position of at least one virtual view distributed from the virtual view position calculation and distribution unit, and performs partial multiplexing based on at least one created virtual view video; and a video integration unit that integrates a plurality of partially multiplexed videos output from the plurality of view synthesis processing units.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 1, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hong-Chang Shin, Gun Bang, Gi-Mun Um, Tae One Kim, Eun Young Chang, Nam Ho Hur, Soo In Lee
  • Publication number: 20150146779
    Abstract: A video decoding method for depth information in accordance with an embodiment of the present invention includes generating a prediction block of a current block for the depth information, generating a restored block of the current block based on the prediction block, and performing filtering on the restored block, whether or not to perform the filtering can be determined based on block information about the current block and coding information about the current block.
    Type: Application
    Filed: July 17, 2013
    Publication date: May 28, 2015
    Applicants: ELECTRONIC AND TELECOMMUNICATIONS RESEARCH INSTITUTE, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Gun Bang, Won Sik Cheong, Nam Ho Hur, Kyung Yong Kim, Gwang Hoon Park
  • Publication number: 20140286415
    Abstract: According to the present invention, a video decoding method comprises: a step of decoding a first bitstream corresponding to a base layer image based on first decoding information corresponding to the image that belongs to the view which is different from the view to which the base layer image belongs; and a step of decoding a second bitstream corresponding to an enhancement layer image based on second decoding information corresponding to the base layer image and third decoding information corresponding to the image that belongs to the view which is different from the view to which the enhancement layer image belongs.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 25, 2014
    Inventors: Jung Won Kang, Hui Yong Kim, Ha Hyun Lee, Gun Bang, Jin Soo Choi, Won Sik Cheong, Nam Ho Hur, Jin Woong Kim
  • Patent number: 8731279
    Abstract: Method and device for generating a multi-viewpoint image are provided. The method of generating a multi-viewpoint image includes the steps of: acquiring at least one reference-viewpoint image; generating unit image information of a virtual-viewpoint image on the basis of unit image information of the reference-viewpoint image; multiplexing the unit image information of the reference-viewpoint image and the unit image information of the virtual-viewpoint image; and generating a multi-viewpoint image by performing an interpolation process on occluded areas between the multiplexed unit image information using the multiplexed unit image information. As a result, it is possible to avoid unnecessary processes of completing and rearranging individual viewpoint images in the course of generating a multi-viewpoint image.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 20, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hong-Chang Shin, Gun Bang, Gi-Mun Um, Tae One Kim, Eun Young Chang, Nam Ho Hur, Soo In Lee
  • Publication number: 20140132743
    Abstract: Provided are an image magnification apparatus and method for three-dimensional display images. A multi-view image magnification apparatus includes: a region designation detection unit for detecting detection regions corresponding to the magnification regions of three-dimensional display images from original view images; a magnification ratio determination unit for determining the magnification ratios of the magnification regions; and a partial multiplexing unit for multiplexing non-detection regions except for the detection regions of the original view images according to a predetermined resolution and multiplexing the detection regions according the resolution which is different from the resolution of the non-detection regions on the basis of the magnification ratios. The present invention can magnify the images without lowering the resolution in a three-dimensional display.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 15, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hong Chang Shin, Gun Bang, Gi Mun Um, Tae One Kim, Eun Young Chang, Won Sik Cheong, Nam Ho Hur
  • Patent number: 8675040
    Abstract: A method and a device for adjusting depth perception, a terminal including a function for adjusting depth perception and a method for operating the terminal are provided. The method for adjusting depth perception includes: obtaining color and depth videos of a user; detecting a user's position based on the obtained depth video of the user; calculating a range of maximum and minimum depths in a 3-dimensional (3D) video according to the detected user's position; and adjusting a left and right stereo video generating interval of the 3D video to be rendered so as to satisfy the calculated range of the maximum and minimum depths. Therefore, during a 3D or multi-view video call, the 3D video having a three-dimensional effect optimized according to the user's position may be provided.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: March 18, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi-Mun Um, Gun Bang, Tae One Kim, Eun Young Chang, Hong Chang Shin, Nam Ho Hur, Soo In Lee
  • Patent number: 8677500
    Abstract: Provided are a digital broadcasting receiver and method of broadcast content protection. The digital broadcasting receiver comprises a platform which stores received broadcast data, middleware which comprises an application manager managing various applications so that broadcast content corresponding to the received broadcast data is used according to a consumption policy, a platform interface unit which acts as an interface between the platform and the middleware, and a middleware interface unit which acts as an interface between the various applications and the middleware. According to the method, various broadcast content protection and management policies can be accepted in various digital broadcasting receivers, each having different hardware and software structures.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: March 18, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gun Bang, Hyon Gon Choo, Je-Ho Nam, Bum Suk Choi, Young Bae Byun, Jin Woo Hong
  • Publication number: 20140003518
    Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 2, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gun Bang, Won Sik Cheong, Gi Mun Um, Nam Ho Hur, Gwang Hoon Park, Kyung Yong Kim
  • Patent number: 8588515
    Abstract: A method and apparatus for enhancing quality of a depth image are provided. A method for enhancing quality of a depth image includes: receiving a multi-view image including a left image, a right image, and a center image; receiving a current depth image frame and a previous depth image frame of the current depth image frame; setting an intensity difference value corresponding to a specific disparity value of the current depth image frame by using the current depth image frame and the previous depth image frame; setting a disparity value range including the specific disparity value; and setting an intensity difference value corresponding to the disparity value range of the current depth image frame by using the multi-viewpoint image.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 19, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gun Bang, Gi-Mun Um, Eun-Young Chang, Taeone Kim, Nam-Ho Hur, Jin-Woong Kim, Soo-In Lee
  • Publication number: 20120154533
    Abstract: A device for creating multi-view video contents includes a virtual view position and distribution unit that calculates a plurality of virtual views corresponding to the number of predetermined virtual views based on input information and distributes the calculated positions of the plurality of virtual views to a plurality of view synthesis processing units; a view synthesis processor that operates the plurality of view synthesis processing units in parallel, allows each of the view synthesis processing units to create at least one virtual view video corresponding to a position of at least one virtual view distributed from the virtual view position calculation and distribution unit, and performs partial multiplexing based on at least one created virtual view video; and a video integration unit that integrates a plurality of partially multiplexed videos output from the plurality of view synthesis processing units.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hong-Chang SHIN, Gun BANG, Gi-Mun UM, Tae One KIM, Eun Young CHANG, Nam Ho HUR, Soo In LEE
  • Publication number: 20120154517
    Abstract: A method and a device for adjusting depth perception, a terminal including a function for adjusting depth perception and a method for operating the terminal are provided. The method for adjusting depth perception includes: obtaining color and depth videos of a user; detecting a user's position based on the obtained depth video of the user; calculating a range of maximum and minimum depths in a 3-dimensional (3D) video according to the detected user's position; and adjusting a left and right stereo video generating interval of the 3D video to be rendered so as to satisfy the calculated range of the maximum and minimum depths. Therefore, during a 3D or multi-view video call, the 3D video having a three-dimensional effect optimized according to the user's position may be provided.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 21, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gi-Mun UM, Gun BANG, Tae One KIM, Eun Young CHANG, Hong Chang SHIN, Nam Ho HUR, Soo In LEE
  • Publication number: 20120148173
    Abstract: Method and device for generating a multi-viewpoint image are provided. The method of generating a multi-viewpoint image includes the steps of: acquiring at least one reference-viewpoint image; generating unit image information of a virtual-viewpoint image on the basis of unit image information of the reference-viewpoint image; multiplexing the unit image information of the reference-viewpoint image and the unit image information of the virtual-viewpoint image; and generating a multi-viewpoint image by performing an interpolation process on occluded areas between the multiplexed unit image information using the multiplexed unit image information. As a result, it is possible to avoid unnecessary processes of completing and rearranging individual viewpoint images in the course of generating a multi-viewpoint image.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hong-Chang SHIN, Gun BANG, Gi-Mun UM, Tae One KIM, Eun Young CHANG, Nam Ho HUR, Soo In LEE
  • Publication number: 20110261883
    Abstract: Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 27, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gun Bang, Gi-Mun Um, Taeone Kim, Eun-Young Chang, Namho Hur, Jin-Woong Kim, Soo-In Lee
  • Publication number: 20110234769
    Abstract: An apparatus for displaying images in an image system includes: an encoder configured to encode color and depth images of at least one view received from a plurality of imaging devices and generate a reference image by synthesizing the encoded depth image of a current view and the encoded color and depth images before and after the current view based on a predetermined method; a decoder configured to decode a color image of the current view by using the generated reference image and decode the encoded color and depth images of at least one view; and a splitter configured to divide and split, based on each view, the decoded color and depth images of at least one view.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gun BANG, Won-Sik CHEONG, Gi-Mun UM, Namho HUR, Hong-Chang SHIN, Jin-Woong KIM, Soo-In LEE
  • Publication number: 20110228880
    Abstract: Provided are a digital broadcasting receiver and method of broadcast content protection. The digital broadcasting receiver comprises a platform which stores received broadcast data, middleware which comprises an application manager managing various applications so that broadcast content corresponding to the received broadcast data is used according to a consumption policy, a platform interface unit which acts as an interface between the platform and the middleware, and a middleware interface unit which acts as an interface between the various applications and the middleware. According to the method, various broadcast content protection and management policies can be accepted in various digital broadcasting receivers, each having different hardware and software structures.
    Type: Application
    Filed: July 20, 2006
    Publication date: September 22, 2011
    Inventors: Gun Bang, Hyon Gon Choo, Je-Ho Nam, Bum Suk Choi, Young Bae Byun, Jin Woo Hong
  • Publication number: 20110149031
    Abstract: Provided is a camera apparatus, including: a camera unit including at least two cameras to acquire a stereoscopic image; a camera control unit to adjust a view angle of the at least two cameras and an interval between the at least two cameras; a depth information obtainment unit to obtain depth information from the stereoscopic image; and an intermediate image generator to generate an intermediate image based on the stereoscopic image and the depth information.
    Type: Application
    Filed: August 17, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gi Mun UM, Gun Bang, Won-Sik CHEONG, Hong-Chang SHIN, Taeone KIM, Eun Young CHANG, Namho HUR, Jin Woong KIM, Soo In LEE
  • Publication number: 20110150321
    Abstract: Provided is a method of editing a depth image, comprising: receiving a selection on a depth image frame to be edited and a color image corresponding to the depth image frame; receiving a selection on an interest object in the color image; extracting boundary information of the interest object; and correcting a depth value of the depth image frame using the boundary information of the interest object.
    Type: Application
    Filed: September 27, 2010
    Publication date: June 23, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Won-Sik CHEONG, Gun BANG, Gi Mun UM, Hong-Chang SHIN, Namho HUR, Soo In LEE, Jin Woong KIM
  • Publication number: 20100315490
    Abstract: An apparatus for generating depth information, includes: a projector configured to project a predetermined pattern to an object to be photographed; a left camera configured to acquire a left image of a structured light image which is generated by projecting the predetermined pattern to the object; a right camera configured to acquire a right image of the structured light image; a depth information generating unit configured to determine correspondence points based on the left image, the right image and the structured light pattern, to generate depth information of the image, to determine the depth information by applying a stereo matching method to the left image and the right image when the structured light pattern cannot be applied to a field of the image, and to generate depth information of entire image based on the acquired depth information.
    Type: Application
    Filed: January 19, 2010
    Publication date: December 16, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Taeone KIM, Namho HUR, Jin-Woong KIM, Gi-Mun UM, Gun BANG, Eun-Young CHANG