Patents Assigned to Industry Academy Cooperation Foundation of Sejong University
  • Patent number: 11228755
    Abstract: According to the present invention, provided is a method of processing a video signal, the method including: obtaining a transform coefficient of a current block from a bitstream according to a predetermined scanning order; determining an intra prediction mode of the current block on the basis of the transform coefficient; and performing intra prediction on the current block using the intra prediction mode and a neighboring sample adjacent to the current block.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 18, 2022
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Yung Lyul Lee, Nam Uk Kim
  • Publication number: 20210385435
    Abstract: A video encoding/decoding device according to the present invention may determine an intra prediction mode of a current block on the basis of a most probable mode (MPM) of the current block or an intra prediction mode of a neighboring block, determine a reference region for intra prediction of the current block, and perform intra prediction on the current block by using the intra prediction mode and the reference region.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 9, 2021
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Jong Ki HAN, Sang Guk CHA, Geon Won LEE, Geun Bae KIM
  • Publication number: 20210352296
    Abstract: A method for encoding image signal, according to the present invention, can: encode a partial block coefficient flag indicating whether a coefficient of a current partial block is a non-zero coefficient; encode a first flag indicating whether an absolute value of the coefficient is greater than 1, encode a second flag indicating whether the absolute value of the coefficient is greater than 2; encode the residual coefficients, which have not been encoded, on the basis of the first flag or the second flag in the current partial block; and encode a code for the coefficient of the current partial block.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • Publication number: 20210352326
    Abstract: The present specification discloses a method of decoding an image. The method includes performing dequantization on a current block to obtain a transform coefficient of the current block; performing at least one inverse transform of primary inverse transform and secondary inverse transform on the transform coefficient of the current block to obtain a residual block of the current block; and adding the residual block of the current block and a prediction block of the current block to obtain a reconstructed block of the current block, wherein the secondary inverse transform is performed only when the current block is in an intra prediction mode.
    Type: Application
    Filed: September 19, 2019
    Publication date: November 11, 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, Dong Jin PARK, Wook Je JEONG, Yung Lyul LEE, Jae Gon KIM
  • Publication number: 20210329238
    Abstract: An image signal decoding method according to the present invention comprises the steps of: decoding information indicating whether a current block is encoded using a multi-mode intra prediction; when it is determined that the current block is encoded in the multi-mode intra prediction, dividing the current block into a plurality of partial blocks; and obtaining an intra prediction mode of each of the plurality of partial blocks.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • Patent number: 11139475
    Abstract: Provided is a lithium secondary battery with improved t electrochemical characteristics through improvement of the structural stability by including a cathode active material doped with molybdenum (Mo). The lithium secondary battery includes a cathode; an anode; a separator positioned between the cathode and the anode; and an electrolyte. In particular, the cathode active material includes molybdenum (Mo) doped on a composite oxide of lithium and metal including manganese (Mn) and titanium (Ti).
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: October 5, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry Academy Cooperation Foundation of Sejong University
    Inventors: Seung-Min Oh, KiSeok Koh, Yeolmae Yeo, Dongjun Kim, Yoon Sung Lee, Jieun Lee, Sa Heum Kim, Seung-Taek Myung
  • Patent number: 11140396
    Abstract: A method for encoding image signal, according to the present invention, can: encode a partial block coefficient flag indicating whether a coefficient of a current partial block is a non-zero coefficient; encode a first flag indicating whether an absolute value of the coefficient is greater than 1, encode a second flag indicating whether the absolute value of the coefficient is greater than 2; encode the residual coefficients, which have not been encoded, on the basis of the first flag or the second flag in the current partial block; and encode a code for the coefficient of the current partial block.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: October 5, 2021
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee Moon, Dong Jae Won, Sung Won Lim
  • Patent number: 11140397
    Abstract: A method for encoding image signal, according to the present invention, can: encode a partial block coefficient flag indicating whether a coefficient of a current partial block is a non-zero coefficient; encode a first flag indicating whether an absolute value of the coefficient is greater than 1, encode a second flag indicating whether the absolute value of the coefficient is greater than 2; encode the residual coefficients, which have not been encoded, on the basis of the first flag or the second flag in the current partial block; and encode a code for the coefficient of the current partial block.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 5, 2021
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee Moon, Dong Jae Won, Sung Won Lim
  • Publication number: 20210297666
    Abstract: The present invention provides an image encoding method and an image decoding method. The image encoding method of the present invention comprises: a first dividing step of dividing a current image into a plurality of blocks; and a second dividing step of dividing, into a plurality of sub blocks, a block, which is to be divided and includes a boundary of the current image, among the plurality of blocks, wherein the second dividing step is recursively performed by setting a sub block including the boundary of the current images as the block to be divided, until the sub block including the boundary of the current image does not exist among the sub blocks.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 23, 2021
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • Patent number: 11125886
    Abstract: The present invention provides a method of performing a position measurement on the basis of a signal from a global navigation satellite system (GNSS). The method includes: receiving initial position information; estimating an initial value of a multipath error through a measurement of the GNSS signal on the basis of the received initial position information; estimating a multipath error from the initial value of the multipath error on the basis of a change in the measurement; removing the estimated multipath error from the measurement of the GNSS signal; and performing the position measurement on the basis of the GNSS measurement from which the multipath error is removed.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 21, 2021
    Assignees: Electronics and Telecommunications Research Institute, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Yoo La Hwang, Jae Young Ahn, Byoung Sun Lee, Ji Hun Cha, Byung Woon Park, Yong Jun Lee, Cheol Soon Lim
  • Patent number: 11122265
    Abstract: An image signal decoding method according to the present invention comprises the steps of: decoding information indicating whether a current block is encoded using a multi-mode intra prediction; when it is determined that the current block is encoded in the multi-mode intra prediction, dividing the current block into a plurality of partial blocks; and obtaining an intra prediction mode of each of the plurality of partial blocks.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 14, 2021
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee Moon, Sung Won Lim, Dong Jae Won
  • Patent number: 11122273
    Abstract: A method for encoding image signal, according to the present invention, can: encode a partial block coefficient flag indicating whether a coefficient of a current partial block is a non-zero coefficient; encode a first flag indicating whether an absolute value of the coefficient is greater than 1, encode a second flag indicating whether the absolute value of the coefficient is greater than 2; encode the residual coefficients, which have not been encoded, on the basis of the first flag or the second flag in the current partial block; and encode a code for the coefficient of the current partial block.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 14, 2021
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee Moon, Dong Jae Won, Sung Won Lim
  • Publication number: 20210281853
    Abstract: Disclosed are an image encoding/decoding method and apparatus. The method and apparatus select at least one reference pixel line from among multiple reference pixel lines and derive a predicted value of a pixel within a current block by using the value of at least one pixel within the selected reference pixel line(s). Alternatively, the method and apparatus derive an intra prediction mode of a reconstructed pixel region on the basis of a reference pixel region of at least one reconstructed pixel region, derive an intra prediction mode of a current block on the basis of the derived intra prediction mode of the reconstructed pixel region, obtain an intra prediction block of the current block by using the derived intra prediction mode, and reconstruct the current block by summing the obtained intra prediction block and a residual block of the current block.
    Type: Application
    Filed: May 12, 2021
    Publication date: September 9, 2021
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • Publication number: 20210281854
    Abstract: Disclosed are an image encoding/decoding method and apparatus. The method and apparatus select at least one reference pixel line from among multiple reference pixel lines and derive a predicted value of a pixel within a current block by using the value of at least one pixel within the selected reference pixel line(s). Alternatively, the method and apparatus derive an intra prediction mode of a reconstructed pixel region on the basis of a reference pixel region of at least one reconstructed pixel region, derive an intra prediction mode of a current block on the basis of the derived intra prediction mode of the reconstructed pixel region, obtain an intra prediction block of the current block by using the derived intra prediction mode, and reconstruct the current block by summing the obtained intra prediction block and a residual block of the current block.
    Type: Application
    Filed: May 12, 2021
    Publication date: September 9, 2021
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • 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
  • Patent number: 11115659
    Abstract: An image signal decoding method according to the present invention comprises the steps of: decoding information indicating whether a current block is encoded using a multi-mode intra prediction; when it is determined that the current block is encoded in the multi-mode intra prediction, dividing the current block into a plurality of partial blocks; and obtaining an intra prediction mode of each of the plurality of partial blocks.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 7, 2021
    Assignee: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee Moon, Sung Won Lim, Dong Jae Won
  • Publication number: 20210274214
    Abstract: Disclosed herein are an image encoding method and an image decoding method. The image decoding method includes determining an initial motion vector of a current block using a motion vector of a reconstructed region, searching for the motion vector of the current block based on the initial motion vector, and generating a prediction sample of the current block using the motion vector. The initial motion vector includes a motion vector in a past direction and a motion vector in a future direction.
    Type: Application
    Filed: June 18, 2019
    Publication date: September 2, 2021
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee MOON, Dong Jae WON, Jae Min HA, Sung Won LIM
  • 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: 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
  • 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