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公开(公告)号：US11838524B2
公开(公告)日：2023-12-05
申请号：US17852523
申请日：2022-06-29
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 , H04N19/59 , H04N19/103 , H04N19/36
CPC classification number: H04N19/30 , H04N19/11 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/503 , H04N19/103 , H04N19/36 , 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：US20230336740A1
公开(公告)日：2023-10-19
申请号：US18317685
申请日：2023-05-15
Inventor： Sung Chang LIM , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Jae Gon Kim , Sang Yong Lee , Hae Chul CHOI
IPC: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.
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公开(公告)号：US20230336722A1
公开(公告)日：2023-10-19
申请号：US18311786
申请日：2023-05-03
Inventor： Sung Chang LIM , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Jae Gon Kim , Sang Yong Lee
IPC: H04N19/119 , H04N19/105 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70 , H04N19/91
CPC classification number: H04N19/119 , H04N19/105 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70 , H04N19/91 , H04N19/147
Abstract: The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).
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公开(公告)号：US11770534B2
公开(公告)日：2023-09-26
申请号：US17828688
申请日：2022-05-31
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: H04N19/119 , H04N19/129 , H04N19/176 , H04N19/70 , H04N19/122 , H04N19/159 , H04N19/136 , H04N19/61 , H04N19/593 , H04N19/625 , H04N19/124 , H04N19/157 , H04N19/44
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：US11706449B2
公开(公告)日：2023-07-18
申请号：US17733182
申请日：2022-04-29
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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Patent Agency Ranking
公开(公告)号：US11706423B2
公开(公告)日：2023-07-18
申请号：US17857765
申请日：2022-07-05
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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公开(公告)号：US11616943B2
公开(公告)日：2023-03-28
申请号：US16896493
申请日：2020-06-09
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
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：US11606567B2
公开(公告)日：2023-03-14
申请号：US17377057
申请日：2021-07-15
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04B1/66 , H04N19/176 , H04N19/129 , H04N19/136
Abstract: Provided is a transform coefficient scan method including: determining a reference transform block for a decoding target block; deriving a scanning map of the decoding target block using scanning information of the reference transform block; and performing inverse scanning on a transform coefficient of the decoding target block using the derived scanning map. According to the present invention, picture encoding/decoding efficiency may be improved.
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公开(公告)号：US20230035462A1
公开(公告)日：2023-02-02
申请号：US17950248
申请日：2022-09-22
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/182 , H04N19/46 , H04N19/30 , H04N19/31 , H04N19/52 , H04N19/13 , H04N19/124 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/70 , H04N19/91 , H04N19/80 , H04N19/33 , H04N19/503
Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.
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公开(公告)号：US20230032927A1
公开(公告)日：2023-02-02
申请号：US17951797
申请日：2022-09-23
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182
Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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