Patents by Inventor Yongjo AHN

Yongjo AHN 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 device for transmitting block division information in image codec for security camera
    Patent number: 11924424
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 5, 2024
    Assignee: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu Sim, Yongjo Ahn, Seanae Park
  • DEEP LEARNING-BASED IMAGE CODING METHOD AND DEVICE
    Publication number: 20240056575
    Abstract: A deep learning-based signal processing method according to the present invention may: obtain a quantized feature map from a bitstream; reconstruct the feature map by performing inverse quantization on the quantized feature map; and synthesize the reconstructed feature map on the basis of a neural network.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 15, 2024
    Inventors: Yongjo AHN, Jongseok LEE
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20240048704
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • METHOD AND DEVICE FOR TRANSMITTING BLOCK DIVISION INFORMATION IN IMAGE CODEC FOR SECURITY CAMERA
    Publication number: 20240007629
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 4, 2024
    Applicant: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu SIM, Yongjo Ahn, Seanae Park
  • NEURAL NETWORK FEATURE MAP QUANTIZATION METHOD AND DEVICE
    Publication number: 20230421764
    Abstract: A neural network-based signal processing method and device according to the present invention generates a feature map by means of a multilayer neural network comprising a plurality of neural networks, and performs quantization for the feature map, the quantization performed on the basis of the structure of the multilayer neural network or the attribute of the feature map.
    Type: Application
    Filed: November 18, 2021
    Publication date: December 28, 2023
    Inventors: Yongjo AHN, Jongseok LEE
  • Video coding method and apparatus
    Patent number: 11838509
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 5, 2023
    Assignees: DIGITALINSIGHTS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • METHOD AND APPARATUS FOR COMPRESSION AND TRAINING OF NEURAL NETWORK
    Publication number: 20230229894
    Abstract: A neural-network-based signal processing method and apparatus according to the present invention may: receive a bitstream including information about a neural network model, wherein the bitstream includes at least one neural network access unit; obtain information about the at least one neural network access unit from the bitstream; and reconstruct the neural network model on the basis of the information about the at least one neural network access unit.
    Type: Application
    Filed: June 25, 2021
    Publication date: July 20, 2023
    Inventors: Yongjo AHN, Jongseok LEE
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20220360780
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Yongjo AHN, Donggyu SIM, Hochan RYU, Seanae PARK, Woong LIM
  • METHOD AND DEVICE FOR TRANSMITTING BLOCK DIVISION INFORMATION IN IMAGE CODEC FOR SECURITY CAMERA
    Publication number: 20220329799
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Applicant: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu Sim, Yongjo Ahn, Seanae Park
  • Method and apparatus for employing dynamic range mapping information for HDR image decoder considering backward compatibility
    Patent number: 11451837
    Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: September 20, 2022
    Assignee: KWANGWON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Donggyu Sim, Seanae Park, Yongjo Ahn, Jonghyun Ma, Jeongyun Lim
  • Video coding method and apparatus
    Patent number: 11438591
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 6, 2022
    Assignees: DIGITALINSIGHTS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • Method and device for transmitting block division information in image codec for security camera
    Patent number: 11399178
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: July 26, 2022
    Assignee: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu Sim, Yongjo Ahn, Seanae Park
  • METHOD AND APPARATUS FOR EMPLOYING DYNAMIC RANGE MAPPING INFORMATION FOR HDR IMAGE DECODER CONSIDERING BACKWARD COMPATIBILITY
    Publication number: 20210127142
    Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.
    Type: Application
    Filed: January 7, 2021
    Publication date: April 29, 2021
    Applicant: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Donggyu SIM, Seanae PARK, Yongjo AHN, Jonghyun MA, Jeongyun LIM
  • METHOD AND DEVICE FOR TRANSMITTING BLOCK DIVISION INFORMATION IN IMAGE CODEC FOR SECURITY CAMERA
    Publication number: 20210076037
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 11, 2021
    Applicant: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu SIM, Yongjo AHN, Seanae PARK
  • Method and apparatus for employing dynamic range mapping information for HDR image decoder considering backward compatibility
    Patent number: 10917664
    Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 9, 2021
    Assignee: Kangwoon University Industry-Academic Collaboration Foundation
    Inventors: Donggyu Sim, Seanae Park, Yongjo Ahn, Jonghyun Ma, Jeongyun Lim
  • Method and device for transmitting block division information in image codec for security camera
    Patent number: 10887591
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: January 5, 2021
    Assignee: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu Sim, Yongjo Ahn, Seanae Park
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20200288133
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventors: Yongjo AHN, Donggyu SIM, Hochan RYU, Seanae PARK, Woong LIM
  • Video coding method and apparatus
    Patent number: 10694184
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 23, 2020
    Assignee: DIGITALINSIGHTS INC.
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • METHOD AND APPARATUS FOR EMPLOYING DYNAMIC RANGE MAPPING INFORMATION FOR HDR IMAGE DECODER CONSIDERING BACKWARD COMPATIBILITY
    Publication number: 20200029100
    Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Donggyu SIM, Seanae PARK, Yongjo AHN, Jonghyun MA, Jeongyun LIM
  • Method and apparatus for employing dynamic range mapping information for HDR image decoder considering backward compatibility
    Patent number: 10477252
    Abstract: The present invention enables efficient decoding by using DR mapping information between a base layer and an enhancement layer in various manners in an HDR decoder considering backward compatibility.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: November 12, 2019
    Assignee: Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Donggyu Sim, Seanae Park, Yongjo Ahn, Jonghyun Ma, Jeongyun Lim