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).
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Patent number: 10979708Abstract: 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: GrantFiled: October 17, 2017Date of Patent: April 13, 2021Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Sun-young Lee, Se-hoon Son, Jae-seob Shin, Hyeong-duck Kim, Gyeong-taek Lee
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Publication number: 20210092367Abstract: 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: ApplicationFiled: December 2, 2020Publication date: March 25, 2021Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
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Publication number: 20210084325Abstract: 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: ApplicationFiled: August 29, 2018Publication date: March 18, 2021Inventors: Jeong-yeon LIM, Hyo Song KIM, Hyeong-duck KIM, Se-hoon SON, Jae-seob SHIN, Gyeong-taek LEE, Sun-young LEE
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Patent number: 10924757Abstract: 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: GrantFiled: October 17, 2017Date of Patent: February 16, 2021Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Sun-young Lee, Se-hoon Son, Jae-seob Shin, Hyeong-duck Kim, Gyeong-taek Lee
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Patent number: 10893278Abstract: 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: GrantFiled: July 9, 2019Date of Patent: January 12, 2021Assignees: 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
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Patent number: 10743000Abstract: 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: GrantFiled: July 3, 2017Date of Patent: August 11, 2020Assignees: 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
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Publication number: 20190379894Abstract: 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: ApplicationFiled: August 21, 2019Publication date: December 12, 2019Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE, Jung-han KIM
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Publication number: 20190335182Abstract: 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: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Inventors: Jeong-yeon LIM, Jae-seob SHIN, Sung-gul RYOO, Se-hoon SON, Hyeong-duck KIM, Sun-young LEE
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Publication number: 20190320195Abstract: 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: ApplicationFiled: October 17, 2017Publication date: October 17, 2019Applicant: SK TELECOM CO., LTD.Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
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Publication number: 20190273919Abstract: 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: ApplicationFiled: October 17, 2017Publication date: September 5, 2019Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
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Publication number: 20190260990Abstract: 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: ApplicationFiled: October 17, 2017Publication date: August 22, 2019Inventors: Jeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN, Hyeong-duck KIM, Gyeong-taek LEE
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Publication number: 20190238860Abstract: 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: ApplicationFiled: July 3, 2017Publication date: August 1, 2019Applicants: 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
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Patent number: 9749587Abstract: 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: GrantFiled: May 24, 2016Date of Patent: August 29, 2017Assignees: SK TELECOM CO., LTD., PIXTREE, INC.Inventors: Jeong-yeon Lim, Dong-bum Seo, Jae-seob Shin, Se-hoon Son, Hyeong-duck Kim
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Publication number: 20160269684Abstract: 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: ApplicationFiled: May 24, 2016Publication date: September 15, 2016Inventors: Jeong-yeon LIM, Dong-bum SEO, Jae-seob SHIN, Se-hoon SON, Hyeong-duck KIM
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Patent number: 8041180Abstract: 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: GrantFiled: May 23, 2006Date of Patent: October 18, 2011Assignee: Pixtree Inc.Inventors: Jae-Seob Shin, Yeon-Bae Kim, Se-Hoon Son, Hyeong-Duck Kim, Hwan-Serk Choi
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Publication number: 20080175558Abstract: 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: ApplicationFiled: May 23, 2006Publication date: July 24, 2008Applicant: PIXTREE TECHNOLOGIS, INC.Inventors: Jae-Seob Shin, Yeon-Bae Kim, Se-Hoon Son, Hyeong-Duck Kim, Hwan-Serk Choi