Patents by Inventor Jung-Won Kang

Jung-Won Kang 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: 20210306638
    Abstract: The present invention discloses an image decoding method, the method including generating a candidate list including motion information derived from a spatial neighboring block and a temporal neighboring block adjacent to a current block; deriving motion information of the current block using the candidate list; generating a prediction block of the current block using the derived motion information; and updating the derived motion information in a motion information list, wherein the generating of the candidate list is performed in such a manner as to include at least one information of the motion information included in the updated motion information list in a block decoded before the current block.
    Type: Application
    Filed: August 6, 2019
    Publication date: September 30, 2021
    Applicants: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Gwang Hoon PARK, Tae Hyun KIM, Dae Young LEE
  • Publication number: 20210297658
    Abstract: An image encoding/decoding method is disclosed. Present invention of the method of decoding an image comprises determining a prediction mode for a current block and performing prediction on the current block on the basis of the determined prediction mode.
    Type: Application
    Filed: September 3, 2019
    Publication date: September 23, 2021
    Applicants: Electronics and Telecommunications Research Institute, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ha Hyun LEE, Jung Won KANG, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Hae Chul CHOI, Aram BACK, Dae Hyeok GWON
  • Patent number: 11128861
    Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 21, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Suk Ko, Jin Ho Lee, Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Patent number: 11128862
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra-prediction mode for a current block, determining whether or not a left boundary or an upper boundary of the current block is a boundary of a predetermined image region, configuring a reference sample by using at least one reconstructed sample included in at least one reconstructed sample line adjacent to the current block based on the determination result, and performing intra-prediction for the current block based on the intra-prediction mode and the reference sample.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 21, 2021
    Assignee: Research and Telecommunications Research Insitute
    Inventors: Seung Hyun Cho, Jung Won Kang, Sung Chang Lim, Hyun Suk Ko, Dong San Jun, Jin Ho Lee, Ha Hyun Lee, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20210289209
    Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may include: determining a position of a co-located block of a current block within a co-located picture (co-located picture); determining a representative motion vector of the current block by using motion information at the position of the co-located block; and deriving motion information on a sub-block included in the current block by using the representative motion vector.
    Type: Application
    Filed: September 20, 2019
    Publication date: September 16, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ha Hyun LEE, Jung Won KANG, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM
  • Publication number: 20210281838
    Abstract: There is provided an image encoding/decoding method and apparatus. An image decoding method according to the present invention may comprise reconstructing a most frequent mode (MFM) indicator indicating whether or not an intra prediction mode of a current block is a predetermined intra prediction mode, deriving, on the basis of the MFM indicator, the intra prediction mode of the current block, and generating a prediction block of the current block by performing intra prediction on the current block on the basis of the intra prediction mode.
    Type: Application
    Filed: July 5, 2019
    Publication date: September 9, 2021
    Applicants: Electronics and Telecommunications Research Institute, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Jin Ho LEE, Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Hui Yong KIM, Jae Gon KIM, Ji Hoon DO, Yong Uk YOON, Do Hyeon PARK, Yung Lyul LEE
  • Publication number: 20210273984
    Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata of the content may be efficiently divided for a purpose of use of a terminal based on general media information or specific media information, and may be transmitted to the terminal. A group may include one or more representations of content. The metadata may include a group element, and the group element may provide a summary of attributes of one or more representations included in the group.
    Type: Application
    Filed: September 14, 2020
    Publication date: September 2, 2021
    Inventors: Truong Cong Thang, Jin Young Lee, Seong Jun Bae, Jung Won Kang, Soon Heung Jung, Sang Taick Park, Won Ryu
  • Publication number: 20210274217
    Abstract: There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding information on whether or not to perform motion information refinement from a bitstream, obtaining second motion information for first motion information on a current block on the basis of the information and reconstructing at least one of the current block and a neighboring block of the current block by using at least one of the first motion information and the second motion information.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 2, 2021
    Applicants: Electronics and Telecommunications Research Institute, CHIPS&MEDIA, INC
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM, Dae Yeon KIM, Dong Jin PARK, Myoung Hun JANG, Wook Je JEONG
  • Publication number: 20210274215
    Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention comprises the step of deriving a first candidate list for the current block by using motion information of neighboring blocks of the current block; deriving a second candidate list for the current block by using previously reconstructed motion information; deriving a third candidate list by using the first candidate list and the second candidate list; and deriving a prediction block for the current block by using the third candidate list.
    Type: Application
    Filed: July 16, 2019
    Publication date: September 2, 2021
    Applicants: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Gwang Hoon PARK, Tae Hyun KIM, Dae Young LEE
  • Publication number: 20210274175
    Abstract: In this specification, a image decoding method is disclosed. The image decoding method of the present invention comprises, decoding block partition information of a current block included in a current picture, determining a partitioning scheme for the current block according to the block partition information and partitioning the current block using the partitioning scheme determined, wherein the partitioning scheme is determined according to whether the current block includes a boundary of the current picture.
    Type: Application
    Filed: June 27, 2019
    Publication date: September 2, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang LIM, Jung Won KANG, Jin Ho LEE, Ha Hyun LEE, Hui Yong KIM
  • Publication number: 20210274223
    Abstract: In the present specification, an image decoding method is disclosed. The image decoding method includes: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, wherein the number of samples used in filtering is determined on the basis of a size of the current block.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 2, 2021
    Applicants: Electronics and Telecommunications Research Institute, CHIPS&MEDIA, INC, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM, Dae Yeon KIM, Wook Je JEONG, Dong Jin PARK, Min Yong JEON, Yung Lyul LEE, Nam Uk KIM, Myung Jun KIM, Ji Youn JUNG, Jae Gon KIM
  • Publication number: 20210274176
    Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving slice mode information on a slice included in a current picture, deriving slice identification information on the basis of the slice mode information, and decoding the slice on the basis of the slice identification information.
    Type: Application
    Filed: September 18, 2019
    Publication date: September 2, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM
  • Publication number: 20210274197
    Abstract: Disclosed in a method of decoding an image. The method includes determining a zero out region within a current block; partitioning a region except for the zero out region within the current block, on a per transform coefficient group basis; and decoding a transform coefficient on the per transform coefficient group basis.
    Type: Application
    Filed: July 5, 2019
    Publication date: September 2, 2021
    Applicants: Electronics and Telecommunications Research Institute, CHIPS&MEDIA, INC, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Jin Ho LEE, Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Hui Yong KIM, Dae Yeon KIM, Do Hyeon PARK, Jae Gon KIM, Yong Uk YOON, Yung Lyul LEE
  • Patent number: 11109032
    Abstract: According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 31, 2021
    Assignees: Electronics and Telecommunications Research Institute, CHIPS & MEDIA, INC.
    Inventors: Dae Yeon Kim, Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Jin Ho Lee, Hui Yong Kim
  • Publication number: 20210266533
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise acquiring transform coefficients distribution information of a neighboring block from a bitstream; direction-adaptively determining an intra prediction mode of a current block to be decoded, according to the transform coefficients distribution information of the neighboring block; and reconstructing the current block, based on the determined intra prediction mode, wherein the direction-adaptively determining includes determining similarity flag information corresponding to the neighboring block, based on the transform coefficients distribution information of the neighboring block.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, CHIPS&MEDIA,INC, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Jin Ho LEE, Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Hui Yong KIM, Dae Yeon KIM, Yung Lyul LEE
  • Publication number: 20210266528
    Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong San JUN, Jung Won KANG, Sung Chang LIM, Hyun Suk KO, Jin Ho LEE, Hui Yong KIM, Jin Soo CHOI
  • Patent number: 11102509
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 24, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Suk Ko, Sung Chang Lim, Jung Won Kang, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Publication number: 20210258582
    Abstract: According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.
    Type: Application
    Filed: April 7, 2021
    Publication date: August 19, 2021
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, CHIPS&MEDIA, INC.
    Inventors: Dae Yeon KIM, Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM
  • Patent number: 11082716
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, inter-prediction information for a target block may be derived, and inter prediction for a target block may be performed using the derived inter-prediction information. Combined inter-prediction information may be performed by combining multiple pieces of inter-prediction information, and the combined inter-prediction information may be added as a candidate to a list used for inter prediction. One of candidates in the list may be selected for inter prediction for the target block, and inter prediction using the selected candidate may be performed.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: August 3, 2021
    Assignees: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University
    Inventors: Jin-Ho Lee, Jung-Won Kang, Hyunsuk Ko, Sung-Chang Lim, Ha-Hyun Lee, Dong-San Jun, Hui-Yong Kim, Jae-Gon Kim, Do-Hyeon Park, Yong-Uk Yoon
  • Publication number: 20210233282
    Abstract: The present disclosure provides a multi-view image decoding method including: obtaining, from a bitstream, three-dimensional geometry information indicating a three-dimensional space of a multi-view image, view independent component information indicating a view independent component, which is uniformly applied to every view, and view dependent component information indicating a view dependent component, which is differently applied according to views; determining a view dependent component for a texture map of a current view from the view dependent component information; generating the texture map of the current view from a view independent component of the view independent component information and the determined view dependent component for the current view; and reconstructing a current view image according to a three-dimensional space that is constructed according to the texture map of the current view and the three-dimensional geometry information.
    Type: Application
    Filed: December 16, 2020
    Publication date: July 29, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Soo Woong KIM, Jung Won KANG, Gun BANG, Jin Ho LEE, Ha Hyun LEE, Sung Chang LIM