Patents by Inventor Dong Gyu Sim

Dong Gyu Sim 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).

  • METHOD AND APPARATUS FOR PATCH BOOK-BASED ENCODING AND DECODING OF VIDEO DATA
    Publication number: 20230188709
    Abstract: Disclosed are a method and an apparatus for patch book-based encoding and decoding of video data. A video data decoding method comprises the steps of: determining a patch book list for a block of video data; and determining one or more index values for the block. Each of the index values indicates a patch book entry having color values corresponding to a subset of pixels in the block, among patch book entries of the patch book list. The decoding method further comprises a step of reconstructing subsets of the pixels on the basis of the patch book list and the index values for the block.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 15, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Gyu Sim, Joo Hyung Byeon, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
  • VIDEO ENCODING AND DECODING USING ARBITRARY BLOCK PARTITIONING
    Publication number: 20230179762
    Abstract: A video decoding method for decoding a target block using intra prediction comprises decoding, from a bitstream, boundary line information specifying at least one boundary line for partitioning the target block. The boundary line information allows partitioning the target block into a plurality of non-rectangular blocks. The method further comprises determining intra prediction modes for the non-rectangular blocks based on the boundary line information; generating a prediction block of the target block by performing intra prediction on each of the non-rectangular blocks using the intra prediction modes; reconstructing a residual block of the target block from the bitstream; and reconstructing the target block by adding the prediction block and the residual block.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Gyu Sim, Sea Nae Park, Jun Taek Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim
  • METHOD AND APPARATUS FOR PARALLEL ENCODING AND DECODING OF MOVING PICTURE DATA
    Publication number: 20230179804
    Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.
    Type: Application
    Filed: December 11, 2022
    Publication date: June 8, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
  • Method, apparatus, system and computer-readable recording medium for feature map information
    Patent number: 11665363
    Abstract: Disclosed herein are a method, apparatus, system, and computer-readable recording medium for image compression. An encoding apparatus performs preprocessing of feature map information, frame packing, frame classification, and encoding. A decoding apparatus performs decoding, frame depacking, and postprocessing in order to reconstruct feature map information. By encoding the feature map information, inter-prediction and intra-block prediction for a frame are performed. The encoding apparatus provides the decoding apparatus with a feature map information bitstream for reconstructing the feature map information along with an image information bitstream.
    Type: Grant
    Filed: November 26, 2021
    Date of Patent: May 30, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyoung-Jin Kwon, Ji-Hoon Do, Dong-Hyun Kim, Youn-Hee Kim, Jong-Ho Kim, Joo-Young Lee, Se-Yoon Jeong, Jin-Soo Choi, Tae-Jin Lee, Jee-Hoon Kim, Dong-Gyu Sim, Seoung-Jun Oh, Min-Hun Lee, Yun-Gu Lee, Han-Sol Choi, Kwang-Hwan Kim
  • Method and device for effective video encoding/decoding via local lighting compensation
    Patent number: 11632546
    Abstract: There is provided an image decoding method comprising: deriving a first prediction value of a current block by using at least one sample included in a reference block, obtaining an illumination compensation parameter on the basis of a predetermined reference region, deriving a second prediction value of the current block by applying the illumination compensation parameter to the first prediction value and reconstructing the current block on the basis of the second prediction value.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 18, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gun Bang, Hui Yong Kim, Dong Gyu Sim, Seoung Jun Oh, Sea Nae Park, Jun Taek Park, Jong Seok Lee
  • METHOD AND APPARATUS FOR PARALLEL ENCODING AND DECODING OF MOVING PICTURE DATA
    Publication number: 20230113288
    Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 13, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
  • METHOD AND APPARATUS FOR PARALLEL ENCODING AND DECODING OF MOVING PICTURE DATA
    Publication number: 20230113442
    Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 13, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
  • METHOD AND APPARATUS FOR PARALLEL ENCODING AND DECODING OF MOVING PICTURE DATA
    Publication number: 20230105199
    Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 6, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
  • METHOD, APPARATUS AND RECORDING MEDIUM FOR ENCODING/DECODING FEATURE MAP
    Publication number: 20230105112
    Abstract: Disclosed herein is an encoding method. The encoding method includes generating multiple feature maps using an input image, transforming the feature maps using a transform vector, and generating a bitstream by performing entropy encoding on at least any one of the feature map, the transform coefficient of the feature map, or the transform vector, or a combination thereof.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Youn-Hee KIM, Ji-Hoon DO, Se-Yoon JEONG, Joo-Young LEE, Hyoung-Jin KWON, Dong-Hyun KIM, Jong-Ho KIM, Woong LIM, Jin-Soo CHOI, Tae-Jin LEE, Dong-Gyu SIM, Min-Sub KIM, Seung-Jin PARK, Seoung-Jun OH, Min-Hun LEE, Han-Sol CHOI
  • INVERSE QUANTIZATION DEVICE AND METHOD USED IN VIDEO DECODING DEVICE
    Publication number: 20230090210
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 23, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • INVERSE QUANTIZATION DEVICE AND METHOD USED IN VIDEO DECODING DEVICE
    Publication number: 20230071633
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • INVERSE QUANTIZATION DEVICE AND METHOD USED IN VIDEO DECODING DEVICE
    Publication number: 20230071246
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Dong Gyu Sim, Sea Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • INVERSE QUANTIZATION DEVICE AND METHOD USED IN VIDEO DECODING DEVICE
    Publication number: 20230076247
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • IMAGE ENCODING AND DECODING BASED ON REFERENCE PICTURE HAVING DIFFERENT RESOLUTION
    Publication number: 20230055497
    Abstract: Disclosed is a method for decoding a current block in a current picture included in a high-level layer performed based on a reference picture included in a low-level layer and having a different resolution. A prediction mode for the current block, a decoded residual signal, and decoding information for the current block, are obtained. When the prediction mode is the inter-prediction, a prediction signal for the current block is generated based on the decoding information. A reconstructed block is then generated by adding the prediction signal to the residual signal. Filtering is then performed for correcting the different resolution that is applied to a reference block included in the reference picture such that the different resolution matches a resolution of the current block.
    Type: Application
    Filed: January 6, 2021
    Publication date: February 23, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Gyu Sim, Sea Nae Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim
  • DECODING DEVICE AND METHOD FOR PREDICTING BLOCK PARTITIONED INTO RANDOM SHAPE
    Publication number: 20230048262
    Abstract: A method and a device for inversely transforming transform coefficients of a current block are disclosed. A method for predicting a current block according to a first mode, includes the steps of: on the basis of a partition mode syntax element, partitioning the current block into non-rectangular blocks; determining an intra-predicted intra block and an inter-predicted inter block among the non-rectangular blocks; and deriving prediction samples of a first area including the inter block on the basis of motion information, and deriving prediction samples of a second area including the intra block on the basis of an intra prediction mode.
    Type: Application
    Filed: December 15, 2020
    Publication date: February 16, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Gyu Sim, Joo Hyung Byeon, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • Inverse quantization device and method used in video decoding device
    Patent number: 11570439
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 31, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • Method and apparatus for parallel encoding and decoding of moving picture data
    Patent number: 11553209
    Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 10, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
  • METHOD AND APPARATUS FOR INTER-PREDICTION OF PICTURES WITH DIFFERENT RESOLUTIONS
    Publication number: 20220417552
    Abstract: A video decoding apparatus is provided for decoding a sequence of pictures, some of which have different resolutions. The apparatus decodes, from a high-level syntax structure of the sequence, a first syntax element for specifying a reference size of pictures referring to the high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the picture referring to the high-level syntax structure. The apparatus predicts a current block, by modifying a sample position in a reference picture indicated by a motion vector of the current block based on the first and second syntax elements.
    Type: Application
    Filed: September 29, 2020
    Publication date: December 29, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Gyu Sim, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • VIDEO PROCESSING METHOD AND DEVICE USING RESOLUTION OF REFERENCE PICTURE, AND RECORDING MEDIUM
    Publication number: 20220417507
    Abstract: Disclosed herein are a video processing method, apparatus and storage medium using the resolution of a reference picture. Filtering is performed based on resolutions of reference pictures of blocks forming a boundary. The resolutions of the reference pictures may define filtering. Depending on whether the resolutions of the reference pictures are different from each other, one or more filter selection parameters for filtering may be determined or updated. Further, based on whether the resolutions of the reference pictures are different from each other, the boundary strength of the filter may be determined. Because filtering is defined using the resolutions of reference pictures, performance of encoding and/or decoding may be improved.
    Type: Application
    Filed: November 23, 2020
    Publication date: December 29, 2022
    Applicants: Electronics and Telecommunications Research Institute, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Seoung-Jun OH, Woong LIM, Gun BANG, Tae-Jin LEE, Dong-Gyu SIM, Jun-Taek PARK, Min-Hun LEE, Jong-Seok LEE
  • Method and apparatus for adaptively encoding and decoding a quantization parameter based on a quadtree structure
    Patent number: RE49330
    Abstract: Disclosed are an apparatus and a method of encoding/decoding a video, particularly a method and an apparatus for storing a quantization parameter differential value in a largest coding unit (LCU) based on quadtree splitting and adaptively predicting a quantization parameter value based on context information on neighboring CUs. Quadtree-based quantization parameter encoding and decoding methods and apparatuses effectively show information on a block having a quantization parameter differential value based on splitting information on a CU and adaptively predict a quantization parameter value using context information including a block size, block partition and a quantization parameter of a neighboring CU.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 6, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Dong Gyu Sim, Jung Hak Nam, Hyung Ho Jo