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公开(公告)号：US20250063181A1
公开(公告)日：2025-02-20
申请号：US18938538
申请日：2024-11-06
Inventor： Ha Hyun LEE , Jung Won KANG , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/187 , H04N19/105 , H04N19/176 , H04N19/31 , H04N19/33 , H04N19/463 , H04N19/52 , H04N19/70
Abstract: Disclosed are a method and an apparatus for image encoding/decoding that support a plurality of layers. The method for image decoding that supports a plurality of layers includes decoding information of a first layer which a picture of a second layer including a current decoding target block refers to; mapping the information of the first layer to a picture size of the second layer, configuring a reference picture list for the picture of the second layer by adding the mapped information of the first layer and generating prediction samples of the current decoding target block by predicting the current decoding target block of the second layer based on the reference picture list, and the information of the first layer includes at least one of a sample value and motion information of the first layer picture.
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公开(公告)号：US20250016360A1
公开(公告)日：2025-01-09
申请号：US18892820
申请日：2024-09-23
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/52
Abstract: A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image.
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公开(公告)号：US20240283934A1
公开(公告)日：2024-08-22
申请号：US18653645
申请日：2024-05-02
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
CPC classification number: H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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公开(公告)号：US20240223804A1
公开(公告)日：2024-07-04
申请号：US18606687
申请日：2024-03-15
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jong Ho KIM , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/593
CPC classification number: H04N19/593
Abstract: The multi sample prediction method of the present invention comprises the steps of: determining a sample group consisting of a plurality of samples inside a decoding target block; determining a representative position corresponding to the sample group, inside the decoding target block; determining a representative prediction value for the sample group, on the basis of the determined representative position; and determining the determined representative prediction value as the final prediction value for each of the plurality of samples making up the sample group. The present invention enhances efficiency in encoding/decoding and reduces complexity thereof.
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公开(公告)号：US20240098437A1
公开(公告)日：2024-03-21
申请号：US18526897
申请日：2023-12-01
Inventor： Yong Ju LEE , Jeong Il SEO , Seung Kwon BEACK , Kyeong Ok KANG , Jin Woong KIM , Jae Hyoun YOO
IPC: H04S3/00 , G10L19/008
CPC classification number: H04S3/008 , G10L19/008 , H04S2400/01
Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
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Patent Agency Ranking
公开(公告)号：US20240064299A1
公开(公告)日：2024-02-22
申请号：US18499965
申请日：2023-11-01
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/117 , H04N19/176 , H04N19/30 , H04N19/14 , H04N19/80 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/159 , H04N19/51 , H04N19/61
CPC classification number: H04N19/117 , H04N19/176 , H04N19/30 , H04N19/14 , H04N19/80 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/159 , H04N19/51 , H04N19/61 , H04N19/172
Abstract: A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.
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公开(公告)号：US20240056587A1
公开(公告)日：2024-02-15
申请号：US18492046
申请日：2023-10-23
Applicant: Electronics and Telecommunications Research Institute , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Ha Hyun LEE , Jung Won KANG , Jin Soo CHOI , Jin Woong KIM , Dong Gyu SIM , Hyo Min CHOI , Jung Hak NAM
IPC: H04N19/30 , H04N19/11 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/503
CPC classification number: H04N19/30 , H04N19/11 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/503 , H04N19/59
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.
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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：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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