Patent search ap:("ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE") AND inv:"Sung-Chang Lim" Page 4

31.

发明授权
Image encoding/decoding apparatus and method 有权

公开(公告)号：US09602832B2

公开(公告)日：2017-03-21

申请号：US14553602

申请日：2014-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hae-Chul Choi , Se Yoon Jeong , Sukhee Cho , Hui Yong Kim , Jinho Lee , Hahyun Lee , Sung-Chang Lim , Jongho Kim , Jin Soo Choi , Jin Woo Hong , Jin Woong Kim

IPC: H04N11/02 , H04N19/513 , H04N19/52

CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513

Abstract: Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.

32.

发明授权
Motion picture encoding apparatus and method thereof 有权

公开(公告)号：US09432697B2

公开(公告)日：2016-08-30

申请号：US15049854

申请日：2016-02-22

Applicant: 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

Inventor： 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

IPC: H04N7/26 , H04N19/625 , H04N19/50 , H04N19/124 , H04N19/176 , H04N19/60 , H04N19/12 , H04N19/14 , H04N19/18 , H04N19/182 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/13 , H04N19/139 , H04N19/159 , H04N19/44 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/615 , H04N19/91

CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91

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.

33.

发明授权
Image encoding/decoding apparatus and method 有权

公开(公告)号：US09363528B2

公开(公告)日：2016-06-07

申请号：US14553664

申请日：2014-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hae-Chul Choi , Se Yoon Jeong , Sukhee Cho , Hui Yong Kim , Jinho Lee , Hahyun Lee , Sung-Chang Lim , Jongho Kim , Jin Soo Choi , Jin Woo Hong , Jin Woong Kim

IPC: H04N11/02 , H04N19/513 , H04N19/52

CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513

Abstract: Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.

34.

发明授权
Image encoder and decoder using undirectional prediction 有权

公开(公告)号：US09332282B2

公开(公告)日：2016-05-03

申请号：US14469309

申请日：2014-08-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY—ACADEMIC COLLABORATION FOUNDATION , UNIVERSITY—INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： 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

IPC: G06K9/36 , H04N19/91 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/11 , H04N19/132 , H04N19/587 , H04N19/124 , H04N19/44 , H04N19/625

CPC classification number: H04N19/159 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91

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.

35.

发明授权
Bidirectional intra prediction method and apparatus 有权

公开(公告)号：US12244853B2

公开(公告)日：2025-03-04

申请号：US17529757

申请日：2021-11-18

Applicant: Electronics and Telecommunications Research Institute , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Hyunsuk Ko , Jung-Won Kang , Sung-Chang Lim , Jin-Ho Lee , Ha-Hyun Lee , Dong-San Jun , Hae-Chul Choi , Hui-Yong Kim , A-Ram Back

IPC: H04N19/593 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/184

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Encoding and decoding of a target block are performed using intra-prediction. The intra-prediction is intra-prediction that uses bidirectional intra-prediction and a remaining mode. In bidirectional intra-prediction, a prediction value for a target pixel in the target block is determined based on reference pixels in two directions of bidirectional intra-prediction. In intra-prediction using a remaining mode, the remaining mode indicates remaining intra-prediction modes other than MPMs present in an MPM list.

36.

发明授权
Image encoder and decoder using unidirectional prediction 有权

公开(公告)号：US12177453B2

公开(公告)日：2024-12-24

申请号：US18311330

申请日：2023-05-03

Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University

Inventor： 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

IPC: G06V10/00 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91 , H04N19/172

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.

37.

发明授权
Method and apparatus for deriving intra prediction mode 有权

公开(公告)号：US11956426B2

公开(公告)日：2024-04-09

申请号：US17739365

申请日：2022-05-09

Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Industry-Academia Cooperation Group of Sejong University

Inventor： Jin-Ho Lee , Jae-Gon Kim , Jung-Won Kang , Do-Hyeon Park , Yung-Lyul Lee , Ha-Hyun Lee , Sung-Chang Lim , Hui-Yong Kim , Ji-Hoon Do , Yong-Uk Yoon

IPC: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176

CPC classification number: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176

Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.

38.

发明授权
Method and apparatus for image encoding and decoding using temporal motion information 有权

公开(公告)号：US11943447B2

公开(公告)日：2024-03-26

申请号：US17864226

申请日：2022-07-13

Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung-Chang Lim , Jung-Won Kang , Hyunsuk Ko , Jin-Ho Lee , Ha-Hyun Lee , Dong-San Jun , Hui-Yong Kim , Yung-Lyul Lee , Nam-Uk Kim , Jae-Gon Kim

IPC: H04N19/105 , H04N19/119 , H04N19/137 , H04N19/159 , H04N19/176

CPC classification number: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176

Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.