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421.发明公开公开(公告)号：US20240040114A1
公开(公告)日：2024-02-01
申请号：US18482863
申请日：2023-10-07
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , CHIPS&MEDIA,INC , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Dae Yeon KIM , Yung Lyul LEE
IPC: H04N19/11 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/593
CPC classification number: H04N19/11 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/593
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise acquiring transform coefficients distribution information of a neighboring block from a bitstream; direction-adaptively determining an intra prediction mode of a current block to be decoded, according to the transform coefficients distribution information of the neighboring block; and reconstructing the current block, based on the determined intra prediction mode, wherein the direction-adaptively determining includes determining similarity flag information corresponding to the neighboring block, based on the transform coefficients distribution information of the neighboring block.
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公开(公告)号：US20240022715A1
公开(公告)日：2024-01-18
申请号：US18475786
申请日：2023-09-27
Inventor： Sung Chang LIM , Jong Ho KIM , Hae Chul CHOI , Hui Yong KIM , Ha Hyun LEE , Jin Ho LEE , Se Yoon JEONG , Suk Hee CHO , Jin Soo CHOI , Jin Woo HONG , Jin Woong KIM
IPC: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
CPC classification number: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
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公开(公告)号：US20240022714A1
公开(公告)日：2024-01-18
申请号：US18475768
申请日：2023-09-27
Inventor： Sung Chang LIM , Jong Ho KIM , Hae Chul CHOI , Hui Yong KIM , Ha Hyun LEE , Jin Ho LEE , Se Yoon JEONG , Suk Hee CHO , Jin Soo CHOI , Jin Woo HONG , Jin Woong KIM
IPC: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
CPC classification number: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
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公开(公告)号：US20240015293A1
公开(公告)日：2024-01-11
申请号：US18472473
申请日：2023-09-22
Inventor： Sung Chang LIM , Hyun Suk KO , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/12 , H04N19/167 , H04N19/176 , H04N19/18
CPC classification number: H04N19/12 , H04N19/167 , H04N19/176 , H04N19/18
Abstract: The present invention relates to an image encoding and decoding method. An image decoding method for the same may include: obtaining transform coefficients of a current block from a bitstream; determining a scanning unit and a scanning order of the current block; and rearranging the transform coefficients of the current block by scanning the same base on the determined scanning unit and scanning order.
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公开(公告)号：US20230379477A1
公开(公告)日：2023-11-23
申请号：US18300282
申请日：2023-04-13
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/159 , H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/52 , H04N19/61
CPC classification number: H04N19/159 , H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/52 , H04N19/61
Abstract: An inter-prediction method according to the present invention comprises the steps of: deriving motion information of a current block; and generating a prediction block for the current block on the basis of the derived motion information. According to the present invention, computational complexity can be reduced and encoding efficiency can be improved.
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Patent Agency Ranking
426.发明公开公开(公告)号：US20230344993A1
公开(公告)日：2023-10-26
申请号：US18344160
申请日：2023-06-29
Inventor： Seung Hyun CHO , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Dong San JUN , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/96 , H04N19/119
CPC classification number: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/96
Abstract: An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra-prediction mode for a current block, determining whether or not a left boundary or an upper boundary of the current block is a boundary of a predetermined image region, configuring a reference sample by using at least one reconstructed sample included in at least one reconstructed sample line adjacent to the current block based on the determination result, and performing intra-prediction for the current block based on the intra-prediction mode and the reference sample.
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公开(公告)号：US20230319308A1
公开(公告)日：2023-10-05
申请号：US18330440
申请日：2023-06-07
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80
CPC classification number: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80 , H04N19/176
Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20230300362A1
公开(公告)日：2023-09-21
申请号：US18200085
申请日：2023-05-22
Inventor： Hui Yong KIM , Jin Ho LEE , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/51 , H04N19/196 , H04N19/82 , H04N19/513 , H04N19/593 , H04N19/105 , H04N19/182 , H04N19/42 , H04N19/52
CPC classification number: H04N19/51 , H04N19/196 , H04N19/82 , H04N19/513 , H04N19/593 , H04N19/105 , H04N19/182 , H04N19/42 , H04N19/52
Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.
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公开(公告)号：US20230276046A1
公开(公告)日：2023-08-31
申请号：US18311990
申请日：2023-05-04
Inventor： Dong San JUN , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/147 , H04N19/573
CPC classification number: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/147 , H04N19/573
Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
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430.发明公开公开(公告)号：US20230231995A1
公开(公告)日：2023-07-20
申请号：US18185899
申请日：2023-03-17
Inventor： Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Dong San JUN , Seung Hyun CHO , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/11 , H04N19/119 , H04N19/176
CPC classification number: H04N19/11 , H04N19/119 , 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 constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.
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