Patents by Inventor Hui-Yong Kim

Hui-Yong Kim 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).

  • IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED
    Publication number: 20250159239
    Abstract: The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM
  • VIDEO ENCODING AND DECODING METHODS AND DEVICE USING SAME
    Publication number: 20250159158
    Abstract: The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).
    Type: Application
    Filed: January 14, 2025
    Publication date: May 15, 2025
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang LIM, Hui Yong Kim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Jae Gon Kim, Sang Yong Lee
  • INTER PREDICTION METHOD AND APPARATUS FOR SAME
    Publication number: 20250159246
    Abstract: According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 15, 2025
    Applicants: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hui Yong KIM, Gwang Hoon PARK, Kyung Yong KIM, Sang Min KIM, Sung Chang LIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM
  • INTRA PREDICTION METHOD AND DEVICE
    Publication number: 20250159147
    Abstract: An intra prediction method and apparatus are discussed. In an example, an image decoding method can include deriving an intra prediction mode of a current block, deriving neighboring reference samples of the current block, deriving filtered reference samples by performing filtering on the neighboring reference samples, and generating a predicted block based on the filtered reference samples. For deriving the neighboring reference samples, an unavailable neighboring reference sample can be substituted by using an available neighboring reference sample.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Applicant: LX Semicon Co., Ltd.
    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
  • IMAGE ENCODING/DECODING METHOD, APPARATUS, AND RECORDING MEDIUM FOR STORING BITSTREAM
    Publication number: 20250159152
    Abstract: An image decoding/encoding method and apparatus are discussed. The image decoding method can include receiving information related to an intra prediction mode, deriving a Most Probable Mode (MPM) list based on intra prediction modes of neighboring blocks adjacent to a current block, deriving an intra prediction mode of the current block based on the MPM list and the information related to the intra prediction mode, and performing intra prediction on the current block based on the intra prediction mode.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 15, 2025
    Applicant: LX Semicon Co., Ltd.
    Inventors: Hyun Suk KO, Sung Chang LIM, Jung Won KANG, Dong San JUN, Seung Hyun CHO, Jin Ho LEE, Ha Hyun LEE, Hui Yong KIM, Jin Soo CHOI
  • IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM FOR STORING BITSTREAM
    Publication number: 20250159194
    Abstract: An image encoding/decoding method and apparatus are discussed. The image decoding method can include obtaining information for a collocated picture through a bitstream, deriving the collocated picture based on the obtained information, deriving a sub-block based temporal merge candidate of a current block based on a collocated block in the collocated picture, generating a sub-block based merge candidate list based on the sub-block based temporal merge candidate of the current block, deriving a motion vector for each of a plurality of sub-blocks of the current block based on the sub-block based merge candidate list, and deriving prediction samples of the plurality of sub-blocks of the current block based on the motion vector for each of a plurality of sub-blocks.
    Type: Application
    Filed: January 16, 2025
    Publication date: May 15, 2025
    Applicant: LX Semicon Co., Ltd.
    Inventors: Dong San JUN, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho LEE, Ha Hyun LEE, Hui Yong KIM
  • METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING, AND RECORDING MEDIUM STORING BITSTREAM
    Publication number: 20250159202
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Application
    Filed: January 16, 2025
    Publication date: May 15, 2025
    Inventors: Sung Chang LIM, Hyun Suk KO, Jung Won KANG, Jin Ho LEE, Ha Hun LEE, Dong San Jun, Hui Yong KIM
  • Motion information prediction method and apparatus for distortion due to projection formation conversion
    Patent number: 12301860
    Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.
    Type: Grant
    Filed: December 22, 2023
    Date of Patent: May 13, 2025
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gun Bang, Hui Yong Kim, Gwang Hoon Park, Woo Woen Gwun, Tae Hyun Kim, Won Jun Lee
  • Method and device for image encoding and decoding, and recording medium having bit stream stored therein
    Patent number: 12301864
    Abstract: Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.
    Type: Grant
    Filed: November 8, 2023
    Date of Patent: May 13, 2025
    Assignees: Electronics and Telecommunications Research Institute, CHIPS & MEDIA, INC
    Inventors: Ha Hyun Lee, Jung Won Kang, Sung Chang Lim, Jin Ho Lee, Hui Yong Kim, Dae Yeon Kim, Dong Jin Park
  • Method and apparatus for encoding/decoding images using a motion vector
    Patent number: 12301859
    Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
    Type: Grant
    Filed: April 9, 2024
    Date of Patent: May 13, 2025
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang Lim, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Dong San Jun, Jong Ho Kim, Ha Hyun Lee, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Method and apparatus for image encoding/decoding, transmitting for bitstream based on chroma intra prediction
    Patent number: 12301835
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: May 13, 2025
    Assignee: LX Semicon Co., Ltd.
    Inventors: Sung Chang Lim, Hyun Suk Ko, Jung Won Kang, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Method and apparatus for encoding/decoding a video using a motion compensation
    Patent number: 12294723
    Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: May 6, 2025
    Assignee: LX SEMICON CO., LTD.
    Inventors: Dong San Jun, Ha Hyun Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Image encoding/decoding method and apparatus, and recording medium for storing bitstream
    Patent number: 12294721
    Abstract: An image encoding/decoding method may comprise deriving at least one merge candidate of a current block, generating an initial merge candidate list of the current block by using the derived at least one merge candidate and generating a reconfigured merge candidate list by using the initial merge candidate list.
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: May 6, 2025
    Assignee: LX SEMICON CO., LTD.
    Inventors: Dong San Jun, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Ha Hyun Lee, Hui Yong Kim
  • VIDEO ENCODING/DECODING METHOD, APPARATUS, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREON
    Publication number: 20250142076
    Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.
    Type: Application
    Filed: January 2, 2025
    Publication date: May 1, 2025
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM, Yung Lyul LEE, Ji Yeon JUNG, Nam Uk KIM, Myung Jun KIM, Yang Woo KIM, Dae Yeon KIM, Jae Gon KIM, Do Hyeon PARK
  • IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED
    Publication number: 20250142101
    Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter(s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter(s); and performing intra prediction by using the generated function.
    Type: Application
    Filed: December 30, 2024
    Publication date: May 1, 2025
    Inventors: Seung Hyun CHO, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho LEE, Ha Hyun LEE, Dong San JUN, Hui Yong KIM, Byeung Woo JEON, Nam Uk KIM, Seung Su JEON, Jin Soo CHOI
  • IMAGE ENCODING AND DECODING METHODS WITH IMPLICIT SPLITTING
    Publication number: 20250142092
    Abstract: An image decoding method according to an embodiment of the present invention comprises the steps of: acquiring encoding tree unit information from an image stream; acquiring signaling information on a maximum coding unit size of a coding unit divided from the encoding tree unit; and dividing the encoding tree unit by steps according to the signaling information.
    Type: Application
    Filed: December 31, 2024
    Publication date: May 1, 2025
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, CHIPS&MEDIA, INC.
    Inventors: Min Yong JEON, Dong Jin PARK, Dae Yeon KIM, Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM
  • BIDIRECTIONAL INTRA PREDICTION METHOD AND APPARATUS
    Publication number: 20250142115
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Encoding and decoding of a target block are performed using intra-prediction. The intra-prediction is intra-prediction that uses bidirectional intra-prediction and a remaining mode. In bidirectional intra-prediction, a prediction value for a target pixel in the target block is determined based on reference pixels in two directions of bidirectional intra-prediction. In intra-prediction using a remaining mode, the remaining mode indicates remaining intra-prediction modes other than MPMs present in an MPM list.
    Type: Application
    Filed: January 2, 2025
    Publication date: May 1, 2025
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hyunsuk KO, Jung-Won Kang, Sung-Chang Lim, Jin-Ho Lee, Ha-Hyun Lee, Song-San Jun, Hae-Chul Choi, Hui-Yong Kim, A-Ram Back
  • Method and apparatus for image encoding/decoding, transmitting for bitstream based on an MPM list using multiple reference lines
    Patent number: 12289454
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: April 29, 2025
    Assignee: LX Semicon Co., Ltd.
    Inventors: Sung Chang Lim, Hyun Suk Ko, Jung Won Kang, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Method and apparatus for transform-based image encoding/decoding
    Patent number: 12289449
    Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: April 29, 2025
    Assignees: Electronics and Telecommunications Research Institute, Industry Academy Cooperation Foundation of Sejong University
    Inventors: Sung Chang Lim, Jung Won Kang, Hyun Suk Ko, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi, Yung Lyul Lee, Nam Uk Kim, Jun Woo Choi
  • Method and apparatus for video encoding/decoding using secondary transform and recording medium storing bitstream
    Patent number: 12289472
    Abstract: Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether or not a transform skip mode is applied to a current block; based on the transform skip mode flag, when a transform skip mode is applied to the current block, determining that secondary transform/inverse transform is not applied to the current block; and, according to the transform skip mode flag, when a transform skip mode is not applied to the current block, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, according to the transform matrix index, determining whether or not secondary transform/inverse transform is applied to the current block.
    Type: Grant
    Filed: February 7, 2024
    Date of Patent: April 29, 2025
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Jin Ho Lee, Hui Yong Kim