Patents by Inventor Hyeong-Duck Kim

Hyeong-Duck 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).

  • Patent number: 10979708
    Abstract: The present invention relates to efficient signaling of an intra prediction mode for predicting a current block in intra prediction coding. According to an aspect of the present invention, a video encoding apparatus divides dozens of intra modes into groups, selects a group to which an actual intra mode of the current block to be encoded belongs, and signals a value corresponding to the group. The video decoding apparatus acquires information on the group to which the actual intra mode of the current block belongs from a bit-stream and then evaluates intra modes belonging to the group to select a final intra mode.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: April 13, 2021
    Assignee: SK TELECOM CO., LTD.
    Inventors: Jeong-yeon Lim, Sun-young Lee, Se-hoon Son, Jae-seob Shin, Hyeong-duck Kim, Gyeong-taek Lee
  • Publication number: 20210092367
    Abstract: Disclosed herein is a method of encoding prediction information about a current block located in a first face to be encoded in encoding each face of a 2D image onto which 360 video is projected. The method includes generating prediction information candidates using neighboring blocks around the current block; and encoding a syntax element for the prediction information about the current block using the prediction information candidates. When a border of the current block coincides with a border of the first face, a block adjoining the current block based on the 360 video rather than the 2D image is set as at least a part of the neighboring blocks.
    Type: Application
    Filed: December 2, 2020
    Publication date: March 25, 2021
    Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
  • Publication number: 20210084325
    Abstract: Disclosed herein is a method for adaptive bidirectional optical flow estimation for inter-screen prediction compensation during video encoding. The method aims to reduce complexity and/or cost of bidirectional optical flow (BIO) at a pixel level or a subblock level.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 18, 2021
    Inventors: Jeong-yeon LIM, Hyo Song KIM, Hyeong-duck KIM, Se-hoon SON, Jae-seob SHIN, Gyeong-taek LEE, Sun-young LEE
  • Patent number: 10924757
    Abstract: Disclosed are a method of encoding a video, including determining a motion vector resolution of a current block, determining a motion vector of the current block according to the motion vector resolution of the current block, predicting and encoding current block using a motion vector of the current block, and encoding information on the motion vector resolution of the current block.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: February 16, 2021
    Assignee: SK TELECOM CO., LTD.
    Inventors: Jeong-yeon Lim, Sun-young Lee, Se-hoon Son, Jae-seob Shin, Hyeong-duck Kim, Gyeong-taek Lee
  • Patent number: 10893278
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 12, 2021
    Assignees: SK TELECOM CO., LTD., PIXTREE, INC.
    Inventors: Jeong-yeon Lim, Jae-seob Shin, Sung-gul Ryoo, Se-hoon Son, Hyeong-duck Kim, Sun-young Lee
  • Patent number: 10743000
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: August 11, 2020
    Assignees: SK TELECOM CO., LTD., PIXTREE, INC.
    Inventors: Jeong-yeon Lim, Jae-seob Shin, Sung-gul Ryoo, Se-hoon Son, Hyeong-duck Kim, Sun-young Lee
  • Publication number: 20190379894
    Abstract: Disclosed herein is a video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles. The method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 12, 2019
    Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE, Jung-han KIM
  • Publication number: 20190335182
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Inventors: Jeong-yeon LIM, Jae-seob SHIN, Sung-gul RYOO, Se-hoon SON, Hyeong-duck KIM, Sun-young LEE
  • Publication number: 20190320195
    Abstract: Disclosed are a method of encoding a video, including determining a motion vector resolution of a current block, determining a motion vector of the current block according to the motion vector resolution of the current block, predicting and encoding current block using a motion vector of the current block, and encoding information on the motion vector resolution of the current block.
    Type: Application
    Filed: October 17, 2017
    Publication date: October 17, 2019
    Applicant: SK TELECOM CO., LTD.
    Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
  • Publication number: 20190273919
    Abstract: The present invention relates to efficient signaling of an intra prediction mode for predicting a current block in intra prediction coding. According to an aspect of the present invention, a video encoding apparatus divides dozens of intra modes into groups, selects a group to which an actual intra mode of the current block to be encoded belongs, and signals a value corresponding to the group. The video decoding apparatus acquires information on the group to which the actual intra mode of the current block belongs from a bit-stream and then evaluates intra modes belonging to the group to select a final intra mode.
    Type: Application
    Filed: October 17, 2017
    Publication date: September 5, 2019
    Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
  • Publication number: 20190260990
    Abstract: Disclosed herein is a method of encoding prediction information about a current block located in a first face to be encoded in encoding each face of a 2D image onto which 360 video is projected. The method includes generating prediction information candidates using neighboring blocks around the current block; and encoding a syntax element for the prediction information about the current block using the prediction information candidates. When a border of the current block coincides with a border of the first face, a block adjoining the current block based on the 360 video rather than the 2D image is set as at least a part of the neighboring blocks.
    Type: Application
    Filed: October 17, 2017
    Publication date: August 22, 2019
    Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
  • Publication number: 20190238860
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Application
    Filed: July 3, 2017
    Publication date: August 1, 2019
    Applicants: SK Telecom Co., Ltd., Pixtree, Inc.
    Inventors: Jeong-yeon LIM, Jae-seob SHIN, Sung-gul RYOO, Se-hoon SON, Hyeong-duck KIM, Sun-young LEE
  • Patent number: 9749587
    Abstract: An apparatus of generating a combined video stream of multiple images, includes: an image acquiring unit to acquire a plurality of individual video streams transmitted over multiple channels; an image information extracting unit to extract individual image codes and individual header information from each of the plurality of the individual video streams; and a bit stream generating unit to generate combined image codes by inserting individual image codes into corresponding respective positions corresponding to each of the plurality of individual video streams in a predetermined layout of a display picture, generate combined header information corresponding to the combined image codes based on respective individual header information, and generate a combined video stream including the combined image codes and the combined header information.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 29, 2017
    Assignees: SK TELECOM CO., LTD., PIXTREE, INC.
    Inventors: Jeong-yeon Lim, Dong-bum Seo, Jae-seob Shin, Se-hoon Son, Hyeong-duck Kim
  • Publication number: 20160269684
    Abstract: An apparatus of generating a combined video stream of multiple images, includes: an image acquiring unit to acquire a plurality of individual video streams transmitted over multiple channels; an image information extracting unit to extract individual image codes and individual header information from each of the plurality of the individual video streams; and a bit stream generating unit to generate combined image codes by inserting individual image codes into corresponding respective positions corresponding to each of the plurality of individual video streams in a predetermined layout of a display picture, generate combined header information corresponding to the combined image codes based on respective individual header information, and generate a combined video stream including the combined image codes and the combined header information.
    Type: Application
    Filed: May 24, 2016
    Publication date: September 15, 2016
    Inventors: Jeong-yeon LIM, Dong-bum SEO, Jae-seob SHIN, Se-hoon SON, Hyeong-duck KIM
  • Patent number: 8041180
    Abstract: The apparatus includes a video signal acquisition device, an audio signal acquisition device, a time information processing device, a video signal encoding device, an audio signal encoding device, a multiplexing device and an output device. The video signal acquisition device receives the video signals and converts them into digital video data. The audio signal acquisition device receives the audio signals and converts them into digital audio data. The time information processing device receives a clock signal for synchronization of the digital video and audio data. The video signal encoding device encodes the digital video data. The audio signal encoding device encodes the audio video data. The multiplexing device converts the encoded video and audio signals into a single piece of bit stream data. The output device outputs the bit stream data. The time information processing device provides the two pieces of time information respectively as a video reference clock and an audio reference clock.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: October 18, 2011
    Assignee: Pixtree Inc.
    Inventors: Jae-Seob Shin, Yeon-Bae Kim, Se-Hoon Son, Hyeong-Duck Kim, Hwan-Serk Choi
  • Publication number: 20080175558
    Abstract: The apparatus includes a video signal acquisition device, an audio signal acquisition device, a time information processing device, a video signal encoding device, an audio signal encoding device, a multiplexing device and an output device. The video signal acquisition device receives the video signals and converts them into digital video data. The audio signal acquisition device receives the audio signals and converts them into digital audio data. The time information processing device receives a clock signal for synchronization of the digital video and audio data. The video signal encoding device encodes the digital video data. The audio signal encoding device encodes the audio video data. The multiplexing device converts the encoded video and audio signals into a single piece of bit stream data. The output device outputs the bit stream data. The time information processing device provides the two pieces of time information respectively as a video reference clock and an audio reference clock.
    Type: Application
    Filed: May 23, 2006
    Publication date: July 24, 2008
    Applicant: PIXTREE TECHNOLOGIS, INC.
    Inventors: Jae-Seob Shin, Yeon-Bae Kim, Se-Hoon Son, Hyeong-Duck Kim, Hwan-Serk Choi