Patents by Inventor Wha Pyeong Lim

Wha Pyeong Lim 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: 20250097446
    Abstract: A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250097449
    Abstract: A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250097447
    Abstract: A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250097448
    Abstract: A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
  • Patent number: 12219127
    Abstract: Disclosed is a video encoding/decoding method for performing inter-prediction on a current picture by resampling and referring to luma signals and chroma signals of a reference picture to improve encoding efficiency in video encoding and decoding for a frame having luma signals and chroma signals in various sample formats in one video sequence.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: February 4, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY—INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250039425
    Abstract: Disclosed is a method for video encoding and decod-ing using adaptive color transform on a residual signal. In particular, the maximum memory size required for adaptive color transform is limited by: controlling whether to allow color space conversion on a sequence level according to a syntax element indicating the maximum conversion size allowed for a sequence of pictures; or controlling whether to apply color space conversion on a block level according to the size of a coding block.
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250039427
    Abstract: Disclosed is a method for video encoding and decod-ing using adaptive color transform on a residual signal. In particular, the maximum memory size required for adaptive color transform is limited by: controlling whether to allow color space conversion on a sequence level according to a syntax element indicating the maximum conversion size allowed for a sequence of pictures; or controlling whether to apply color space conversion on a block level according to the size of a coding block.
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250039424
    Abstract: Disclosed is a method for video encoding and decoding using adaptive color transform on a residual signal. In particular, the maximum memory size required for adaptive color transform is limited by: controlling whether to allow color space conversion on a sequence level according to a syntax element indicating the maximum conversion size allowed for a sequence of pictures; or controlling whether to apply color space conversion on a block level according to the size of a coding block.
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250039426
    Abstract: Disclosed is a method for video encoding and decoding using adaptive color transform on a residual signal. In particular, the maximum memory size required for adaptive color transform is limited by: controlling whether to allow color space conversion on a sequence level according to a syntax element indicating the maximum conversion size allowed for a sequence of pictures; or controlling whether to apply color space conversion on a block level according to the size of a coding block.
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Seung Wook Park, Wha Pyeong Lim
  • Patent number: 12212768
    Abstract: A method is provided for decoding a sequence of pictures using a gradual refresh technique. In particular, all areas in one picture are gradually encoded or decoded over a plurality of pictures associated with the picture.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: January 28, 2025
    Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Dong Gyu Sim, Han Sol Choi, Jong Seok Lee, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
  • Patent number: 12200239
    Abstract: A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 14, 2025
    Assignees: Hyundai Motor Company, Kia Corporation, Ewha University-Industry Collaboration Foundation
    Inventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250016364
    Abstract: Methods encode or decode a picture sequence, some having different resolutions, and store a bitstream of encoded video data. A decoding method includes decoding a first syntax for specifying a reference size of pictures referring to a high-level syntax structure and decoding a second syntax element for specifying a picture size scaled from the reference size of the pictures referring to the high-level syntax structure. The method includes deriving at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    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
  • Publication number: 20250016365
    Abstract: Apparatuses encode or decode a picture sequence, some having different resolutions, and store a bitstream of encoded video data. The apparatus has a processor, which decodes 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 pictures referring to the high-level syntax structure. The processor derives at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The processor generates a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    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
  • Publication number: 20250016363
    Abstract: Apparatuses decode or encode a picture sequence, some having different resolutions, and transmit a bitstream of video data. The decoding apparatus has at least one processor, which decodes a first syntax element for specifying a reference size of pictures referring to a high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size. The processor also derives, based on the first and the second syntax elements, at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The processor generates a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    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
  • Publication number: 20250016366
    Abstract: Methods encode or decode a picture sequence, some having different resolutions, and transmit a bitstream of encoded video data. The decoding method includes decoding a first syntax element for specifying a reference size of pictures referring to a high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the pictures referring to the high-level syntax structure. The method includes deriving at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The method includes generating a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    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
  • Patent number: 12192445
    Abstract: An inter prediction method allows a variable coefficient deep learning model to adaptively learn characteristics of a video; transmits a variable coefficient deep learning model parameter generated from the learning from an image encoding device to an image decoding device; and refers to a virtual reference frame generated by the variable coefficient deep learning model.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: January 7, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY—INDUSTRY COLLABORATION FOUNDATION
    Inventors: Je Won Kang, Na Young Kim, Jung Kyung Lee, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250008139
    Abstract: For encoding and decoding images, an image encoding device divides each picture into sub-pictures that can be independently displayed, and signals layout information about the sub-pictures, and an image decoding device identifies each sub-block through the layout information and decodes the sub-pictures. A video decoding apparatus and method are configured to decode a bitstream containing an encoded sequence of pictures which are partitioned into a plurality of subpictures including a plurality of coding tree blocks.
    Type: Application
    Filed: September 10, 2024
    Publication date: January 2, 2025
    Inventors: Dong Gyu Sim, Sea Nae Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20250008140
    Abstract: For encoding and decoding images, an image encoding device divides each picture into sub-pictures that can be independently displayed, and signals layout information about the sub-pictures, and an image decoding device identifies each sub-block through the layout information and decodes the sub-pictures. A video decoding apparatus and method are configured to decode a bitstream containing an encoded sequence of pictures which are partitioned into a plurality of subpictures including a plurality of coding tree blocks.
    Type: Application
    Filed: September 10, 2024
    Publication date: January 2, 2025
    Inventors: Dong Gyu Sim, Sea Nae Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20240430468
    Abstract: For encoding and decoding images, an image encoding device divides each picture into sub-pictures that can be independently displayed, and signals layout information about the sub-pictures, and an image decoding device identifies each sub-block through the layout information and decodes the sub-pictures. A video decoding apparatus and method are configured to decode a bitstream containing an encoded sequence of pictures which are partitioned into a plurality of subpictures including a plurality of coding tree blocks.
    Type: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: Dong Gyu Sim, Sea Nae Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim
  • Publication number: 20240430469
    Abstract: For encoding and decoding images, an image encoding device divides each picture into sub-pictures that can be independently displayed, and signals layout information about the sub-pictures, and an image decoding device identifies each sub-block through the layout information and decodes the sub-pictures. A video decoding apparatus and method are configured to decode a bitstream containing an encoded sequence of pictures which are partitioned into a plurality of subpictures including a plurality of coding tree blocks.
    Type: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: Dong Gyu Sim, Sea Nae Park, Han Sol Choi, Seung Wook Park, Wha Pyeong Lim