Patents by Inventor Dong Jae WON

Dong Jae WON 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 ENCODING/DECODING IMAGE SIGNAL
    Publication number: 20230063859
    Abstract: A method for decoding an image signal according to the present invention may comprise the steps of: determining whether there is a brightness change between a current image including a current block and a reference image of the current image; if it is determined that there is a brightness change between the current image and the reference image, determining weight prediction parameter candidates for the current block; determining a weight prediction parameter for the current block on the basis of index information which specifies any one of the weight prediction parameter candidates; and performing a prediction on the current block on the basis of the weight prediction parameter.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 2, 2023
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • METHOD AND APPARATUS FOR ENCODING/DECODING AN IMAGE SIGNAL
    Publication number: 20230066631
    Abstract: Disclosed are an image encoding/decoding method and apparatus. The image decoding method includes decoding coding mode information of a current coding block, dividing the current coding block into at least one prediction block, and generating prediction samples of the at least one prediction block on the basis of the decoded coding mode, in which the coding mode information is information Indicating any one mode among intra mode, inter mode, and hybrid mode.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 2, 2023
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • Method and apparatus for encoding/decoding image
    Patent number: 11539972
    Abstract: A method and an apparatus for encoding/decoding an image according to the present invention may determine a reference area that is a pre-reconstructed area spatially adjacent to a current block on the basis of reference information for specifying the position of a reference area used for predicting a current block and may predict the current block on the basis of the reference area.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 27, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Dong Jae Won, Jae Min Ha, Sung Won Lim
  • Method and apparatus for encoding/decoding an image signal
    Patent number: 11533470
    Abstract: Disclosed are an image encoding/decoding method and apparatus. The image decoding method includes decoding coding mode information of a current coding block, dividing the current coding block into at least one prediction block, and generating prediction samples of the at least one prediction block on the basis of the decoded coding mode, in which the coding mode information is information indicating any one mode among intra mode, inter mode, and hybrid mode.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 20, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Dong Jae Won, Sung Won Lim
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE
    Publication number: 20220400294
    Abstract: The present invention relates to an image encoding/decoding method and device, and the image encoding method or device according to an embodiment of the present invention may encode a position of a reference coefficient within a current transform block to be encoded, and encoding skip region information of a skip region selected on the basis of the position of the reference coefficient. The skip region information may represent whether or not coefficients within the skip region have an identical coefficient value.
    Type: Application
    Filed: July 5, 2022
    Publication date: December 15, 2022
    Inventors: Joo Hee MOON, Jae Min HA, Dong Jae WON, Sung Won LIM
  • IMAGE ENCODING METHOD/DEVICE, IMAGE DECODING METHOD/DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED
    Publication number: 20220400258
    Abstract: The present invention provides an image encoding method and an image decoding method. The image encoding method of the present invention comprises: a first dividing step of dividing a current image into a plurality of blocks; and a second dividing step of dividing, into a plurality of sub blocks, a block, which is to be divided and includes a boundary of the current image, among the plurality of blocks, wherein the second dividing step is recursively performed by setting a sub block including the boundary of the current images as the block to be divided, until the sub block including the boundary of the current image does not exist among the sub blocks.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 15, 2022
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE SIGNAL
    Publication number: 20220385892
    Abstract: A method for decoding an image signal according to the present invention may comprise the steps of: determining whether there is a brightness change between a current image including a current block and a reference image of the current image; if it is determined that there is a brightness change between the current image and the reference image, determining weight prediction parameter candidates for the current block; determining a weight prediction parameter for the current block on the basis of index information which specifies any one of the weight prediction parameter candidates; and performing a prediction on the current block on the basis of the weight prediction parameter.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • VIDEO SIGNAL ENCODING/DECODING METHOD AND APPARATUS
    Publication number: 20220368900
    Abstract: An image signal decoding method according to the present invention comprises the steps of: decoding information indicating whether a current block is encoded using a multi-mode intra prediction; when it is determined that the current block is encoded in the multi-mode intra prediction, dividing the current block into a plurality of partial blocks; and obtaining an intra prediction mode of each of the plurality of partial blocks.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 17, 2022
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • IMAGE ENCODING METHOD/DEVICE, IMAGE DECODING METHOD/DEVICE AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREIN
    Publication number: 20220368901
    Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method, according to the present invention, comprises the steps of: determining a transformation performing region; segmenting the determined transformation performing region into at least one sub-transform block by using at least one of quadtree segmentation and binary tree segmentation; and performing inverse transformation on the at least one sub-transform block.
    Type: Application
    Filed: July 8, 2022
    Publication date: November 17, 2022
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • IMAGE ENCODING METHOD/DEVICE, IMAGE DECODING METHOD/DEVICE AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREIN
    Publication number: 20220345703
    Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method, according to the present invention, comprises the steps of: determining a transformation performing region; segmenting the determined transformation performing region into at least one sub-transform block by using at least one of quadtree segmentation and binary tree segmentation; and performing inverse transformation on the at least one sub-transform block.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • IMAGE ENCODING METHOD/DEVICE, IMAGE DECODING METHOD/DEVICE AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREON
    Publication number: 20220337828
    Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method, according to the present invention, comprises the steps of: decoding information associated with a clipping range of a current block; and performing sample adaptive offset (SAO) filtering on the basis of the information associated with the clipping range, wherein the information associated with the clipping range may include information on the maximum and minimum values of a pixel value included in the current block.
    Type: Application
    Filed: July 4, 2022
    Publication date: October 20, 2022
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE SIGNAL
    Publication number: 20220272361
    Abstract: A method for decoding an image signal according to the present invention may comprise the steps of: determining whether there is a brightness change between a current image including a current block and a reference image of the current image; if it is determined that there is a brightness change between the current image and the reference image, determining weight prediction parameter candidates for the current block; determining a weight prediction parameter for the current block on the basis of index information which specifies any one of the weight prediction parameter candidates; and performing a prediction on the current block on the basis of the weight prediction parameter.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO SIGNAL
    Publication number: 20220272373
    Abstract: A method of decoding a video signal according to the present invention may include: determining whether or not change in brightness is present between a current video including a current block and a reference video of the current video; when it is determined that change in brightness is present between the current video and the reference video, determining weight prediction parameter candidates of the current block; determining a weight prediction parameter of the current block on the basis of index information specifying any of the weight prediction parameter candidates; and performing prediction for the current block on the basis of the weight prediction parameter.
    Type: Application
    Filed: March 2, 2022
    Publication date: August 25, 2022
    Applicant: Intellectual Discovery Co., Ltd.
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON
  • Method and apparatus for encoding/decoding image
    Patent number: 11425426
    Abstract: The present invention relates to an image encoding/decoding method and device, and the image encoding method or device according to an embodiment of the present invention may encode a position of a reference coefficient within a current transform block to be encoded, and encoding skip region information of a skip region selected on the basis of the position of the reference coefficient. The skip region information may represent whether or not coefficients within the skip region have an identical coefficient value.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 23, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Jae Min Ha, Dong Jae Won, Sung Won Lim
  • Image encoding method/device, image decoding method/device and recording medium having bitstream stored thereon
    Patent number: 11412218
    Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method, according to the present invention, comprises the steps of: decoding information associated with a clipping range of a current block; and performing sample adaptive offset (SAO) filtering on the basis of the information associated with the clipping range, wherein the information associated with the clipping range may include information on the maximum and minimum values of a pixel value included in the current block.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: August 9, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Dong Jae Won, Sung Won Lim
  • Method and apparatus for encoding/decoding image signal
    Patent number: 11363280
    Abstract: A method for decoding an image signal according to the present invention may comprise the steps of: obtaining a first prediction sample of a current block by performing inter prediction on the current block; determining one or more weight prediction parameter candidates for the current block; determining a weight prediction parameter of the current block from the one or more weight prediction parameter candidates; and obtaining a second prediction sample of the current block by applying the weight prediction parameter to the first prediction sample. Herein, a number of the one or more weight prediction parameter candidates is variably determined based on a size of the current block.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: June 14, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Sung Won Lim, Dong Jae Won
  • METHOD AND APPARATUS FOR ENCODING/DECODING AN IMAGE SIGNAL
    Publication number: 20220159238
    Abstract: Disclosed are an image encoding/decoding method and apparatus. The image decoding method includes decoding coding mode information of a current coding block, dividing the current coding block into at least one prediction block, and generating prediction samples of the at least one prediction block on the basis of the decoded coding mode, in which the coding mode information is information indicating any one mode among intra mode, inter mode, and hybrid mode.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 19, 2022
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee MOON, Dong Jae WON, Sung Won LIM
  • METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING
    Publication number: 20220116588
    Abstract: A method and an apparatus for image encoding/decoding, according to the present invention, may generate a candidate list of a current block and perform inter-prediction of the current block by using any one of a plurality of candidates belonging to the candidate list. Here, the plurality of candidates comprise at least one from among a spatial candidate, a temporal candidate, and a restoration information-based candidate, and the restoration information-based candidate may be added from a buffer which stores motion information decoded prior to the current block.
    Type: Application
    Filed: January 6, 2020
    Publication date: April 14, 2022
    Applicant: Industry Academy Cooperation Foundation of Sejong University
    Inventors: Joo Hee MOON, Dong Jae WON, Jae Min HA
  • Method and apparatus for encoding/decoding video signal
    Patent number: 11297343
    Abstract: A method of decoding a video signal according to the present invention may include: determining whether or not change in brightness is present between a current video including a current block and a reference video of the current video; when it is determined that change in brightness is present between the current video and the reference video, determining weight prediction parameter candidates of the current block; determining a weight prediction parameter of the current block on the basis of index information specifying any of the weight prediction parameter candidates; and performing prediction for the current block on the basis of the weight prediction parameter.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: April 5, 2022
    Assignee: Intellectual Discovery Co.. Ltd.
    Inventors: Joo Hee Moon, Sung Won Lim, Dong Jae Won
  • IMAGE ENCODING/DECODING METHOD AND DEVICE
    Publication number: 20220030249
    Abstract: The present invention relates to an image encoding/decoding method and device. In an image decoding method and device according to an embodiment of the present invention, a reconstructed pixel region within an image to which a current block to be decoded belongs is selected; a motion vector of the reconstructed pixel region is derived on the basis of the reconstructed pixel region and a reference image of the current block; and the derived motion vector is selected as a motion vector of the current block.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee MOON, Sung Won LIM, Dong Jae WON