Patents by Inventor Chang Jeong

Chang Jeong 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: 11509895
    Abstract: An image encoding/decoding method using a pixel value range constituting an image is disclosed, wherein the image decoding method using a pixel value range constituting an image comprises the steps of: receiving a bitstream; acquiring information of a pixel value range forming a first unit image included in the received bitstream; and decoding the first unit image on the basis of the acquired information of the pixel value range. Therefore, compression efficiency can be improved in an image encoding or decoding process.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: November 22, 2022
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Patent number: 11509914
    Abstract: The invention relates to a method and a device for decoding an image by means of a partition unit comprising an additional region. The method of decoding an image by means of a partition unit comprising an additional region comprises the steps of: partitioning, by reference to a syntax element acquired from a received bit stream, an encoded image, which is included in the bitstream, in at least one partition unit; define an additional region for at least one partition unit; and decoding the encoded image based on the partition unit for which the additional region is defined. The invention improves the image coding efficiency.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: November 22, 2022
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Patent number: 11483572
    Abstract: A method for decoding an image based on an intra prediction, comprising: obtaining a first prediction pixel of a first region in a current block by using a neighboring pixel adjacent to the current block; obtaining a second prediction pixel of a second region in the current block by using the first prediction pixel of the first region; and decoding the current block based on the first and the second prediction pixels.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: October 25, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Je Chang Jeong, Ki Baek Kim, Won Jin Lee, Hye Jin Shin, Jong Sang Yoo, Jang Hyeok Yun, Kyung Jun Lee, Jae Hun Kim, Sang Gu Lee
  • Publication number: 20220329798
    Abstract: An image encoding method includes configuring block division information and size information of a boundary block which is located at a boundary of an image and is smaller than a size of a basic encoding block, on the basis of size information of a picture and size information of the basic encoding block; dividing the boundary block into at least one encoding block, on the basis of the size information of the basic encoding block and the size information and the block division information of the boundary block; and encoding the at least one divided encoding block.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Publication number: 20220321875
    Abstract: A method and a device for encoding and decoding infra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.
    Type: Application
    Filed: May 11, 2022
    Publication date: October 6, 2022
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Je Chang JEONG, Ki Baek KIM, Ung HWANG
  • Publication number: 20220295115
    Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 15, 2022
    Inventors: Je Chang JEONG, Ki Baek KIM, Dong Jin JUNG
  • Patent number: 11399179
    Abstract: An image encoding method includes configuring block division information and size information of a boundary block which is located at a boundary of an image and is smaller than a size of a basic encoding block, on the basis of size information of a picture and size information of the basic encoding block; dividing the boundary block into at least one encoding block, on the basis of the size information of the basic encoding block and the size information and the block division information of the boundary block; and encoding the at least one divided encoding block.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: July 26, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Publication number: 20220218660
    Abstract: The present invention relates to: a composition for treating castration-resistant prostate cancer, comprising quassinoids; and a method for treating castration-resistant prostate cancer by using same.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 14, 2022
    Inventors: Jeong Hoon KIM, Byong Chang JEONG, Sue Jin MOON
  • Publication number: 20220216886
    Abstract: Disclosed are a method and an apparatus for high-speed decoding of a linear code on the basis of a soft decision. The method for high-speed decoding of a linear code on the basis of a soft decision may comprise the steps of: obtaining an alignment signal by aligning received signals in order of magnitude; obtaining a hard decision signal by making a hard decision on the alignment signal; obtaining a higher-level signal corresponding to most reliable bases (MRB) from the hard decision signal; obtaining a permuted and corrected codeword candidate by using an error vector according to a current order and the higher signal; calculating a cost for the current order by using a cost function; determining the permuted and corrected codeword candidate as a permuted and corrected codeword according to a result of comparing the calculated cost and the minimum cost; and determining a predefined high-speed condition.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 7, 2022
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Chang Ryoul CHOI, Je Chang JEONG
  • Patent number: 11381844
    Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: July 5, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Je Chang Jeong, Ki Baek Kim, Dong Jin Jung
  • Patent number: 11368675
    Abstract: A method and a device for encoding and decoding intra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: June 21, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Je Chang Jeong, Ki Baek Kim, Ung Hwang
  • Publication number: 20220116649
    Abstract: Disclosed are a method and apparatus for decoding an image using inter-prediction. The method of decoding an image using inter-prediction includes receiving a bitstream; acquiring a portion of information indicating a motion vector of a current block to be decoded in the received bitstream, obtaining the motion vector of the current block by using the acquired information to determine the remaining information other than the portion, and generating a prediction block for the current block through inter-prediction that uses the motion vector of the current block. Therefore, it is possible to improve image decoding/encoding efficiency.
    Type: Application
    Filed: December 21, 2021
    Publication date: April 14, 2022
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Je Chang JEONG, KI Baek KIM, Do Kyung LEE
  • Publication number: 20220093625
    Abstract: A semiconductor memory device including a gate stack and a plurality of channel structures. The gate stack includes a plurality of stacked conductive patterns spaced apart from each other. The plurality of the channel structures are formed through the gate stack. Each of the channel structures includes a first channel pillar, a second channel pillar and a gate insulation layer. The first channel pillar is formed through the conductive patterns except for an uppermost conductive pattern. The second channel pillar is formed through the uppermost conductive pattern. The second channel pillar is configured to make contact with the first channel pillar. The gate insulation layer is interposed between the uppermost conductive pattern and the first and second channel pillars.
    Type: Application
    Filed: January 12, 2021
    Publication date: March 24, 2022
    Applicant: SK hynix Inc.
    Inventors: Ki Chang JEONG, Nam Kuk KIM
  • Patent number: 11265555
    Abstract: Disclosed are a method and apparatus for improving the accuracy of intra-prediction in order to improve encoding and decoding efficiency. The video decoding method may improve the prediction efficiency for the current pixel to be predicted by referring to the degree of variation in surrounding pixels, to thereby effectively decode the bit stream with improved encoding efficiency. In addition, an additional prediction candidate is used to achieve improved accuracy of intra-prediction, and the thus-improved accuracy of intra-prediction may reduce residual components and improve encoding efficiency. Further, an improved planar mode is utilized to achieve improved intra-prediction.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: March 1, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Je Chang Jeong, Ki Baek Kim, Won Jin Lee, Hye Jin Shin, Jong Sang Yoo, Jang Hyeok Yun, Kyung Jun Lee, Jae Hun Kim, Sang Gu Lee
  • Patent number: 11240526
    Abstract: Disclosed are a method and apparatus for decoding an image using inter-prediction. The method of decoding an image using inter-prediction includes receiving a bitstream; acquiring a portion of information indicating a motion vector of a current block to be decoded in the received bitstream, obtaining the motion vector of the current block by using the acquired information to determine the remaining information other than the portion, and generating a prediction block for the current block through inter-prediction that uses the motion vector of the current block. Therefore, it is possible to improve image decoding/encoding efficiency.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: February 1, 2022
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Je Chang Jeong, Ki Baek Kim, Do Kyung Lee
  • Publication number: 20220006472
    Abstract: Disclosed are a method and an apparatus for fast decoding a linear code based on soft decision. The method may comprise sorting received signals in a magnitude order to obtain sorted signals; obtaining hard decision signals by performing hard decision on the sorted signals; obtaining upper signals corresponding to MRBs from the hard decision signals; obtaining a permuted and corrected codeword candidate using the upper signals and an error vector according to a current order; calculating a cost for the current order using a cost function; determining the permuted and corrected codeword candidate as a permuted and corrected codeword according to a result of comparing the calculated cost with a minimum cost; and determining a predefined speeding condition.
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Chang Ryoul CHOI, Je Chang Jeong
  • Publication number: 20210392340
    Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 16, 2021
    Inventors: Je Chang JEONG, Soon Jong JIN, Sang Jun PARK, Hyuk LEE
  • Patent number: 11152955
    Abstract: Disclosed are a method and an apparatus for fast decoding a linear code based on soft decision. The method may comprise sorting received signals in a magnitude order to obtain sorted signals; obtaining hard decision signals by performing hard decision on the sorted signals; obtaining upper signals corresponding to MRBs from the hard decision signals; obtaining a permuted and corrected codeword candidate using the upper signals and an error vector according to a current order; calculating a cost for the current order using a cost function; determining the permuted and corrected codeword candidate as a permuted and corrected codeword according to a result of comparing the calculated cost with a minimum cost; and determining a predefined speeding condition.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: October 19, 2021
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Chang Ryoul Choi, Je Chang Jeong
  • Publication number: 20210297675
    Abstract: The in-loop filtering method performed by a video decoding apparatus includes: classifying reconstructed samples according to an absolute classification standard or relative classification standard; acquiring offset data on the basis of results of classifying the reconstructed samples; adding an offset value to the reconstructed samples by referencing the acquired offset data; and outputting the offset value-added reconstructed samples. Accordingly, errors in the reconstructed image can be corrected.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ki Baek KIM, Je Chang JEONG
  • Publication number: 20210284550
    Abstract: The present invention relates to a lithium-titanium complex oxide, a preparation method thereof, and a lithium secondary battery comprising the same and, more specifically, to a lithium-titanium complex oxide which maintains appropriate pores within particles, and which is prepared by adding a pore inducing material in the wet-milling step to adjust sizes of primary particles of the lithium-titanium complex oxide, a preparation method thereof, and a lithium secondary battery comprising the same.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 16, 2021
    Inventors: Su Bong CHOI, Chun Gu KANG, Jeong Eun CHOI, Seung Chang JEONG, Jae An LEE, Jeong Han KIM