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公开(公告)号：US20250039422A1
公开(公告)日：2025-01-30
申请号：US18916084
申请日：2024-10-15
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/44 , H04N19/50 , H04N19/503 , H04N19/52 , H04N19/597
Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20240388716A1
公开(公告)日：2024-11-21
申请号：US18789109
申请日：2024-07-30
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 , H04N19/117 , H04N19/124 , H04N19/51 , H04N19/52 , 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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公开(公告)号：US20240373013A1
公开(公告)日：2024-11-07
申请号：US18674647
申请日：2024-05-24
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM
IPC: H04N19/124 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Disclosed herein is a method of encoding/decoding an image. The image decoding method includes decoding information on a quantization matrix from a bitstream, acquiring a quantization matrix of a current block based on the information on the quantization matrix, and dequantizing the current block using the quantization matrix of the current block. The acquiring of the quantization matrix of the current block includes deriving a single identifier using at least one of a size of the current block, a prediction mode or a color component, and acquiring the quantization matrix of the current block based on the single identifier.
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公开(公告)号：US20240323449A1
公开(公告)日：2024-09-26
申请号：US18675857
申请日：2024-05-28
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , CHIPS&MEDIA, INC , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Wook Je JEONG , Dong Jin PARK , Min Yong JEON , Yung Lyul LEE , Nam Uk KIM , Myung Jun KIM , Ji Youn JUNG , Jae Gon KIM
IPC: H04N19/82 , H04N19/107 , H04N19/176
CPC classification number: H04N19/82 , H04N19/107 , H04N19/176
Abstract: An image decoding is performed by steps including: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, where the number of samples used in filtering is determined on the basis of a size of the current block.
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公开(公告)号：US20240161380A1
公开(公告)日：2024-05-16
申请号：US18503266
申请日：2023-11-07
Inventor： Seong Jun BAE , Jung Won KANG , Soo Woong KIM , Ji Hoon DO , Gun BANG , Jin Ho LEE , Ha Hyun LEE
Abstract: A pixel ray crossing-based multi-viewpoint MPI geometry generation method, device, and recording medium of the present disclosure, the method may comprise obtaining a multi-viewpoint image by original cameras which shoot a different viewpoint, obtaining a multi-plane image (MPI) based on the multi-viewpoint image, obtaining, based on the MPI, an atlas image in a 2D form, and obtaining a bitstream by encoding the atlas image.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240073445A1
公开(公告)日：2024-02-29
申请号：US18504867
申请日：2023-11-08
Inventor： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Dong Jin PARK
IPC: H04N19/55 , H04N19/182 , H04N19/563
CPC classification number: H04N19/55 , H04N19/182 , H04N19/563
Abstract: Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.
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公开(公告)号：US20240056583A1
公开(公告)日：2024-02-15
申请号：US18464472
申请日：2023-09-11
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
IPC: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/51 , H04N19/44 , H04N19/91 , H04N19/146
CPC classification number: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/51 , H04N19/44 , H04N19/91 , H04N19/146
Abstract: The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.
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8.发明公开公开(公告)号：US20240048761A1
公开(公告)日：2024-02-08
申请号：US18489149
申请日：2023-10-18
Inventor： Hyun Suk KO , Ha Hyun LEE , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/593 , H04N19/11 , H04N19/176
CPC classification number: H04N19/593 , H04N19/11 , H04N19/176
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise reconstructing an intra prediction mode of a current block, determining a reference sample for intra prediction of the current block, and generating a prediction block of the current block by performing the intra prediction on the current block on the basis of the intra prediction mode and the reference sample. The determining of the reference sample or the intra prediction may be performed on the basis of a shape of the current block.
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9.发明公开公开(公告)号：US20240048693A1
公开(公告)日：2024-02-08
申请号：US18486461
申请日：2023-10-13
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
CPC classification number: 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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10.发明公开公开(公告)号：US20240022753A1
公开(公告)日：2024-01-18
申请号：US18363282
申请日：2023-08-01
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： 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
IPC: H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176
CPC classification number: H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176 , H04N19/593
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.
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