Patents by Inventor Won-Sik Cheong

Won-Sik Cheong 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: 11405599
    Abstract: An MPEG media transport (MMT) apparatus and method for processing stereoscopic video data are provided. The MMT apparatus includes an asset file generator configured to generate a single asset file that contains an entire or part of the stereoscopic video data; and a signaling message generator configured to generate a signaling message for delivery or consumption of the stereoscopic video data. At least one of the generated single asset file and the generated signaling message contains stereoscopic video information related to the stereoscopic video data.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: August 2, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong
  • Publication number: 20220166976
    Abstract: Disclosed herein are a method, an apparatus and a storage medium for image encoding/decoding using a segmentation map. A feature vector for an image may be extracted using a segmentation map. The image may be encoded using the segmentation map and the feature vector. An output stream from an encoding apparatus may include a video stream and a feature stream. An input stream to a decoding apparatus may include a video stream and a feature stream. The image may be reconstructed using a reconstructed segmentation map and a reconstructed feature vector.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyon-Gon CHOO, Hee-Kyung LEE, Han-Shin LIM, Jeong-Il SEO, Won-Sik CHEONG
  • Patent number: 11276142
    Abstract: Disclosed herein are an apparatus and method for synthesizing virtual viewpoint image. The apparatus for synthesizing virtual viewpoint images includes one or more processors, and an execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive multiple viewpoint images from cameras that capture images of multiple viewpoints, and back-project the multiple viewpoint images onto a world coordinate system in a three-dimensional (3D) space, generate warped images by performing triangular warping of projecting the multiple viewpoint images, back-projected onto the world coordinate system, onto a virtual viewpoint image coordinate system, and generate a finally synthesized virtual viewpoint image by blending the warped images.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 15, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Joung-Il Yun, Sang-Woon Kwak, Won-Sik Cheong, Gi-Mun Um
  • Patent number: 11218744
    Abstract: Provided is a method of processing MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining a duration flag indicating whether duration information of the at least one access unit is valid, in a corresponding MPU; and inserting the duration flag into a header of the corresponding MPU.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: January 4, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong, Nam Ho Hur
  • Patent number: 11218748
    Abstract: Provided is a method of supporting a random access of MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining an initialization flag indicating whether the at least one access unit includes all of data required for initialization of a decoding process, in the at least one MPU; and inserting the initialization flag into a header of the at least one MPU.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: January 4, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong, Nam Ho Hur
  • Publication number: 20210218993
    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: March 30, 2021
    Publication date: July 15, 2021
    Applicants: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Gun BANG, Won Sik CHEONG, Gi Mun UM, Nam Ho HUR, Gwang Hoon PARK, Kyung Yong KIM
  • Publication number: 20210160475
    Abstract: An MPEG media transport (MMT) apparatus and method for processing stereoscopic video data are provided. The MMT apparatus includes an asset file generator configured to generate a single asset file that contains an entire or part of the stereoscopic video data; and a signaling message generator configured to generate a signaling message for delivery or consumption of the stereoscopic video data. At least one of the generated single asset file and the generated signaling message contains stereoscopic video information related to the stereoscopic video data.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 27, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Young LEE, Kug Jin YUN, Won Sik CHEONG
  • Patent number: 10992956
    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: Grant
    Filed: January 15, 2020
    Date of Patent: April 27, 2021
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Gun Bang, Won Sik Cheong, Gi Mun Um, Nam Ho Hur, Gwang Hoon Park, Kyung Yong Kim
  • Patent number: 10911736
    Abstract: An MPEG media transport (MMT) apparatus and method for processing stereoscopic video data are provided. The MMT apparatus includes an asset file generator configured to generate a single asset file that contains an entire or part of the stereoscopic video data; and a signaling message generator configured to generate a signaling message for delivery or consumption of the stereoscopic video data. At least one of the generated single asset file and the generated signaling message contains stereoscopic video information related to the stereoscopic video data.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: February 2, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong
  • Publication number: 20200410638
    Abstract: Disclosed herein are an apparatus and method for synthesizing virtual viewpoint image. The apparatus for synthesizing virtual viewpoint images includes one or more processors, and an execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive multiple viewpoint images from cameras that capture images of multiple viewpoints, and back-project the multiple viewpoint images onto a world coordinate system in a three-dimensional (3D) space, generate warped images by performing triangular warping of projecting the multiple viewpoint images, back-projected onto the world coordinate system, onto a virtual viewpoint image coordinate system, and generate a finally synthesized virtual viewpoint image by blending the warped images.
    Type: Application
    Filed: May 13, 2020
    Publication date: December 31, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: JOUNG-IL YUN, Sang-Woon KWAK, Won-Sik CHEONG, Gi-Mun UM
  • Patent number: 10791313
    Abstract: Disclosed is a method and apparatus for providing an omni-directional stereoscopic image based on layer projection. According to an embodiment of the present disclosure, there is provided a method of providing an omni-directional stereoscopic image based on layer projection, the method including: obtaining a spatial-information-point set; and generating a layer image based on a spatial-information-point subset constructed for each of multiple layers, the layer image corresponding to each of the multiple layers, wherein the spatial-information-point subset constructed for each of two consecutive layers includes one or more duplicate spatial information points.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: September 29, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Joung Il Yun, Sang Woon Kwak, Kug Jin Yun, Jin Hwan Lee, Won Sik Cheong
  • Publication number: 20200302575
    Abstract: Disclosed herein is a method of creating an image stitching workflow including acquiring 360-degree virtual reality (VR) image parameters necessary to makes a request for image stitching and create the image stitching workflow, acquiring a list of functions applicable to the image stitching workflow, creating the image stitching workflow based on functions selected from the list of functions, determining the number of media processing entities necessary to perform tasks configuring the image stitching workflow and generating a plurality of media processing entities according to the determined number of media processing entities, and allocating the tasks configuring the image stitching workflow to the plurality of media processing entities.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 24, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hee Kyung LEE, Gi Mun UM, Jeong Il SEO, Seong Yong LIM, Joung Il YUN, Won Sik CHEONG
  • Publication number: 20200226716
    Abstract: There is provided an image processing apparatus and method. The image processing apparatus comprises: receiving a first source image and a second source image from multiple image sources, receiving geometric information required for stitching the first source image and the second source image and synthesizing an image from the first source image and the second source image on the basis of the geometric information, wherein the geometric information includes seam information used to specify a overlapping region between the first source image and the second source image.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 16, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Mun UM, Hee Kyung LEE, Jeong Il SEO, Joung Il YUN, Seong Yong LIM, Won Sik CHEONG
  • Publication number: 20200154136
    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: January 15, 2020
    Publication date: May 14, 2020
    Applicants: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Gun BANG, Won Sik CHEONG, Gi Mun UM, Nam Ho HUR, Gwang Hoon PARK, Kyung Yong KIM
  • Patent number: 10630745
    Abstract: An MMT apparatus and an MMT method for processing media data are disclosed. An MMT apparatus according to one embodiment comprises: an asset file generation unit for generating an asset file including media data; and a signaling message generation unit for generating a signaling message for transmission or consumption of the media data, wherein the generated asset file includes asset correlation information which describes the relevance between a current asset and a relevant asset, which is another asset file constituting the same MMT package as the current asset.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 21, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong
  • Patent number: 10575014
    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: Grant
    Filed: October 4, 2018
    Date of Patent: February 25, 2020
    Assignees: Electronics Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION OF KYUNG HEE UNIVERSITY
    Inventors: Gun Bang, Won Sik Cheong, Gi Mun Um, Nam Ho Hur, Gwang Hoon Park, Kyung Yong Kim
  • Publication number: 20200007846
    Abstract: An MPEG media transport (MMT) apparatus and method for processing stereoscopic video data are provided. The MMT apparatus includes an asset file generator configured to generate a single asset file that contains an entire or part of the stereoscopic video data; and a signaling message generator configured to generate a signaling message for delivery or consumption of the stereoscopic video data. At least one of the generated single asset file and the generated signaling message contains stereoscopic video information related to the stereoscopic video data.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Young LEE, Kug Jin YUN, Won Sik CHEONG
  • Patent number: 10412364
    Abstract: An MMT apparatus and an MMT method for processing stereoscopic video data are disclosed. An MMT apparatus, according to an embodiment, comprises: an asset file generation unit for generating a single asset file including all or a part of stereoscopic video data; and a signaling message generation unit for generating a signaling message for delivery or consumption of the stereoscopic video data. In addition, at least one from among the generated single asset file and the generated signaling message includes stereoscopic video information related to the stereoscopic video data.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: September 10, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Young Lee, Kug Jin Yun, Won Sik Cheong
  • Patent number: 10368100
    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: Grant
    Filed: June 21, 2018
    Date of Patent: July 30, 2019
    Assignees: Electronics 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, Young Su Heo
  • Publication number: 20190141371
    Abstract: Provided is a method of processing MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining a duration flag indicating whether duration information of the at least one access unit is valid, in a corresponding MPU; and inserting the duration flag into a header of the corresponding MPU.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Young LEE, Kug Jin YUN, Won Sik CHEONG, Nam Ho HUR