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41.发明申请公开(公告)号：US20190068939A1
公开(公告)日：2019-02-28
申请号：US16070532
申请日：2017-01-19
Applicant: Electronics and Telecommunications Research Institute , Ulsan National Institute of Science and Technology
Inventor： Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Young Shin KWAK , Ye Seul BAEK , Jin Soo CHOI
IPC: H04N9/78 , H04N19/124 , H04N19/132 , H04N19/186
Abstract: There is provided a method and apparatus for converting an input video to a video format suitable for compressing, or for converting a recovered video to a video format suitable for displaying. An apparatus for converting a video signal according to an embodiment of the present invention may include: a color space conversion part converting a color space of a video signal thereby the video signal is separated into a brightness component and a color component; a transfer function application part selectively applying a transfer function to one of the brightness component and the color component; a quantization part quantizing the video signal including the brightness component and the color component to which the transfer function is selectively applied; and a sampling part sampling the quantized video signal.
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公开(公告)号：US20180332279A1
公开(公告)日：2018-11-15
申请号：US15776292
申请日：2016-11-18
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Gwang Hoon PARK , Jin Soo CHOI , Tae Hyun KIM , Dae Young LEE , Young Su HEO
IPC: H04N19/105 , G06T5/00 , G06T5/50 , H04N19/513 , H04N19/159 , G06T7/246 , H04N19/176 , H04N19/139
CPC classification number: H04N19/105 , G06T3/0006 , G06T5/006 , G06T5/50 , G06T7/248 , H04N19/103 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/50 , H04N19/521
Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
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43.发明申请公开(公告)号：US20250133211A1
公开(公告)日：2025-04-24
申请号：US19002909
申请日：2024-12-27
Inventor： Seung Hyun CHO , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/129 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/13 , H04N19/132 , H04N19/159 , H04N19/18 , H04N19/513 , H04N19/91 , H04N19/96
Abstract: The present invention relates to a method for encoding and decoding an image. For this, a method for decoding an image may include: entropy-decoding a bitstream; determining a scanning unit and a scanning order of the transform coefficients of the current block; scanning and aligning the transform coefficients of the current block based on the determined scanning unit and scanning order; and performing inverse-transform for the aligned transform coefficients.
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公开(公告)号：US20250106435A1
公开(公告)日：2025-03-27
申请号：US18895011
申请日：2024-09-24
Applicant: Electronics and Telecommunications Research Institute , Dong-A University Research Foundation For Industry-Academy Cooperation
Inventor： Won Sik CHEONG , Kug Jin YUN , Dong San JUN , Seon Jae KIM
IPC: H04N19/70 , H04N19/117 , H04N19/176
Abstract: An image encoding/decoding method, device and recording medium of the present disclosure may include deriving an atlas boundary from a reference sample region of a current block, determining, in response to the existence of the atlas boundary, whether an index of a reference sample line having the atlas boundary is greater than a threshold value, and adaptively transmitting a multiple reference line (MRL) syntax of the current block encoded by a changed binarization method based on the atlas boundary according to whether an index of a reference sample line having the atlas boundary is greater than a threshold value.
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公开(公告)号：US20240430405A1
公开(公告)日：2024-12-26
申请号：US18824773
申请日：2024-09-04
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Gwang Hoon PARK , Jin Soo CHOI , Tae Hyun KIM , Dae Young LEE , Young Su HEO
IPC: H04N19/105 , G06T3/02 , G06T5/50 , G06T5/80 , G06T7/246 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/51 , H04N19/513
Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
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Patent Agency Ranking
公开(公告)号：US20230379466A1
公开(公告)日：2023-11-23
申请号：US18359384
申请日：2023-07-26
Applicant: Electronics and Telecommunications Research Institute , Industry Academy Cooperation Foundation of Sejong University
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI , Yung Lyul LEE , Nam Uk KIM , Jun Woo CHOI
IPC: H04N19/122 , H04N19/90 , H04N19/132 , H04N19/70 , H04N19/625 , H04N19/103 , H04N19/107 , H04N19/186 , H04N19/176 , H04N19/61
CPC classification number: H04N19/122 , H04N19/90 , H04N19/132 , H04N19/70 , H04N19/625 , H04N19/103 , H04N19/107 , H04N19/186 , H04N19/176 , H04N19/61
Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
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公开(公告)号：US20230353751A1
公开(公告)日：2023-11-02
申请号：US18346488
申请日：2023-07-03
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/139 , H04N19/52 , H04N19/51 , H04N19/117 , H04N19/124 , H04N19/91
CPC classification number: H04N19/139 , H04N19/52 , H04N19/51 , H04N19/117 , H04N19/124 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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48.发明公开公开(公告)号：US20230269372A1
公开(公告)日：2023-08-24
申请号：US18309934
申请日：2023-05-01
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/169 , H04N19/46 , H04N19/96
CPC classification number: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/46 , H04N19/96
Abstract: The present invention relates to an image encoding/decoding method. The image decoding method includes splitting a coding tree unit (CTU) into at least one coding unit (CU) according to a block splitting structure and performing CU-based decoding, in which the block partition structure is configured such that at least one of binary tree splitting and ternary tree splitting is performed after quadtree splitting is performed.
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49.发明申请公开(公告)号：US20230071970A1
公开(公告)日：2023-03-09
申请号：US17941182
申请日：2022-09-09
Inventor： Dong San JUN , Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/109 , H04N19/176 , H04N19/91 , H04N19/513 , H04N19/182 , H04N19/132 , H04N19/172 , H04N19/117 , H04N19/174 , H04N19/86 , H04N19/119
Abstract: An image encoding method and an image decoding method are provided. The image decoding method includes deriving a temporal merge candidate from a co-located block of a current block, generating a merge candidate list of the current block based on the derived temporal merge candidate, and generating a prediction block of the current block based on the generated merge candidate list. The deriving a temporal merge candidate includes scaling a motion vector derived from the co-located block based on a POC difference value between the current block and a reference picture of the current block and a POC difference value between the co-located block and a reference picture of the co-located block, and modifying the scaled motion vector based on motion vector scaling information between a neighboring block of the current block and a co-located block of the neighboring block.
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50.发明申请公开(公告)号：US20220279171A1
公开(公告)日：2022-09-01
申请号：US17744845
申请日：2022-05-16
Inventor： Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Dong San JUN , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/107 , H04N19/176 , H04N19/117 , H04N19/147 , H04N19/119 , H04N19/11 , H04N19/105 , H04N19/30 , H04N19/91 , H04N19/146 , H04N19/44 , H04N19/126 , H04N19/52
Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.
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