Patents by Inventor Dong Gyu Sim

Dong Gyu Sim 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).

  • SCALABLE VIDEO CODING METHOD AND APPARATUS USING INTRA PREDICTION MODE
    Publication number: 20170318306
    Abstract: The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.
    Type: Application
    Filed: July 20, 2017
    Publication date: November 2, 2017
    Applicant: Intellectual Discovery Co., Ltd.
    Inventors: Dong Gyu SIM, Jung Hak NAM, Hyun Ho JO, Hyo Min CHOI
  • APPARATUS FOR ENCODING AND DECODING IMAGE BY SKIP ENCODING AND METHOD FOR SAME
    Publication number: 20170310964
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
  • SCALABLE VIDEO CODING METHOD AND APPARATUS USING INTER PREDICTION MODE
    Publication number: 20170302940
    Abstract: The present invention relates to a scalable video coding method and apparatus using inter prediction mode. A decoding method includes determining motion information prediction mode on a target decoding block of an enhancement layer, predicting motion information on the target decoding block of the enhancement layer using motion information on the neighboring blocks of the enhancement layer, if the determined motion information prediction mode is a first mode, and predicting the motion information on the target decoding block of the enhancement layer using motion information on a corresponding block of a reference layer, if the determined motion information prediction mode is a second mode.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 19, 2017
    Applicant: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Dong Gyu SIM, Jung Hak NAM, Hyun Ho JO, Hyo Min CHOI
  • Method and device for simplifying encoding and decoding of ultra-high definition images
    Patent number: 9794556
    Abstract: Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: October 17, 2017
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Sung Chang Lim, Hae Chul Choi, Se Yoon Jeong, Suk Hee Cho, Hui Yong Kim, Jin Ho Lee, Ha Hyun Lee, Jong Ho Kim, Jin Soo Choi, Jin Woong Kim, Gwang Hoon Park, Kyung Yong Kim, Dong-Gyu Sim, Seoung Jun Oh
  • Scalable video coding method and apparatus using intra prediction mode
    Patent number: 9762923
    Abstract: The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 12, 2017
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Dong Gyu Sim, Jung Hak Nam, Hyun Ho Jo, Hyo Min Choi
  • Scalable video coding method and apparatus using inter prediction mode
    Patent number: 9743096
    Abstract: The present invention relates to a scalable video coding method and apparatus using inter prediction mode. A decoding method includes determining motion information prediction mode on a target decoding block of an enhancement layer, predicting motion information on the target decoding block of the enhancement layer using motion information on the neighboring blocks of the enhancement layer, if the determined motion information prediction mode is a first mode, and predicting the motion information on the target decoding block of the enhancement layer using motion information on a corresponding block of a reference layer, if the determined motion information prediction mode is a second mode.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 22, 2017
    Assignee: Intellectual Discovery Co., LTD.
    Inventors: Dong Gyu Sim, Jung Hak Nam, Hyun Ho Jo, Hyo Min Choi
  • Apparatus for encoding and decoding image by skip encoding and method for same
    Patent number: 9743082
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 22, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group Of Kyung Hee University
    Inventors: Sung Chang Lim, Ha Hyun Lee, Se Yoon Jeong, Hui Yong Kim, Suk Hee Cho, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Dong Gyu Sim, Seoung Jun Oh, Gwang Hoon Park, Sea Nae Park, Chan Woong Jeon
  • METHOD FOR CODING AND DECODING SCALABLE VIDEO AND APPARATUS USING SAME
    Publication number: 20170238004
    Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Ha Hyun LEE, Jung Won KANG, Jin Soo CHOI, Jin Woong KIM, Dong Gyu SIM, Hyo Min CHOI, Jung Hak NAM
  • Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor
    Patent number: 9736484
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: August 15, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute For Industry Cooperation, Industry-Academia Cooperation Group of Sejong University
    Inventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
  • Method for coding and decoding scalable video and apparatus using same
    Patent number: 9686544
    Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: June 20, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Ha Hyun Lee, Jung Won Kang, Jin Soo Choi, Jin Woong Kim, Dong Gyu Sim, Hyo Min Choi, Jung Hak Nam
  • Method for coding and decoding scalable video and apparatus using same
    Patent number: 9686543
    Abstract: The present invention relates to a method and an apparatus for interlayer intra-prediction, and the method for interlayer intra-prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: June 20, 2017
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Ha Hyun Lee, Jung Won Kang, Jin Soo Choi, Jin Woong Kim, Dong Gyu Sim, Hyo Min Choi, Jung Hak Nam
  • APPARATUS FOR DECODING IMAGE AND METHOD THEREFORE
    Publication number: 20170134743
    Abstract: An apparatus and a method for decoding an image are disclosed. More specifically, the apparatus for decoding an image, according to one embodiment of the present invention, comprises an adaptive inverse-quantization unit for performing inverse-quantization on a block to be decoded, by using scaling list information set with respect to one region including the block to be decoded within an image among the scaling list information which is separately set in each partitioned region of the image.
    Type: Application
    Filed: January 19, 2015
    Publication date: May 11, 2017
    Applicant: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Dong Gyu SIM, Yong Jo AHN, Woong LIM
  • TEMPLATE-MATCHING-BASED METHOD AND APPARATUS FOR ENCODING AND DECODING INTRA PICTURE
    Publication number: 20170134726
    Abstract: An apparatus and a method for decoding an image are disclosed. More specifically, the apparatus for decoding an image comprises a template matching prediction unit for determining whether to generate a template-matching-based prediction signal for a current CU by using flag information for indicating whether the current CU is encoded in a template-matching-based prediction mode, wherein the flag information is used when a size of the current CU satisfies a range condition for the minimum size and the maximum size of the CU to be encoded in the prediction mode.
    Type: Application
    Filed: January 19, 2015
    Publication date: May 11, 2017
    Applicant: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Dong Gyu SIM, Hyun Ho JO
  • SCALABLE VIDEO CODING METHOD AND APPARATUS USING INTRA PREDICTION MODE
    Publication number: 20170064323
    Abstract: The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Applicant: Intellectual Discovery Co., Ltd.
    Inventors: Dong Gyu SIM, Jung Hak NAM, Hyun Ho JO, Hyo Min CHOI
  • IMAGE ENCODER AND DECODER USING UNIDIRECTIONAL PREDICTION
    Publication number: 20170026652
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 26, 2017
    Inventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
  • IMAGE ENCODER AND DECODER USING UNIDIRECTIONAL PREDICTION
    Publication number: 20170026642
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 26, 2017
    Inventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
  • Scalable video coding method and apparatus using intra prediction mode
    Patent number: 9532064
    Abstract: The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 27, 2016
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Dong Gyu Sim, Jung Hak Nam, Hyun Ho Jo, Hyo Min Choi
  • MOTION PICTURE ENCODING APPARATUS AND METHOD THEREOF
    Publication number: 20160337643
    Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
    Type: Application
    Filed: July 26, 2016
    Publication date: November 17, 2016
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University, Korea Advanced Institute of Science and Technology
    Inventors: Sung-Chang LIM, Ha Hyun LEE, Hui Yong KIM, Se Yoon Jeong, Suk Hee CHO, Hae Chul CHOI, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Mun Churl KIM, Neung Joo HWANG, Sea Nae PARK
  • IMAGE ENCODER AND DECODER USING UNIDIRECTIONAL PREDICTION
    Publication number: 20160309146
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
  • Moving picture encoding/decoding apparatus and method for processing of moving picture divided in units of slices
    Patent number: 9432687
    Abstract: Disclosed is a moving picture encoding/decoding apparatus and method for processing of a moving picture, which is divided in units of slices. The encoding method includes the steps of: dividing a moving picture in units of slices when the moving picture is received; determining an encoding order of moving pictures divided in units of slices; and generating a bitstream by encoding moving pictures, which are divided in unites of slices, according to a corresponding order when the encoding order has been determined.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 30, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dae-sung Cho, Woong-Il Choi, Kwan-woong Song, Young-hun Joo, Yong-Serk Kim, Dong-Gyu Sim, Jung-Hak Nam, Bong-Il Ji