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公开(公告)号：US11627325B2
公开(公告)日：2023-04-11
申请号：US17720646
申请日：2022-04-14
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Ha Hyun Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/159 , H04N19/105 , H04N19/117 , H04N19/126 , H04N19/13 , H04N19/43 , H04N19/50 , H04N19/593 , H04N19/61 , H04N19/176 , H04N19/182
Abstract: An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.
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公开(公告)号：US11516496B2
公开(公告)日：2022-11-29
申请号：US16982972
申请日：2019-03-21
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim
IPC: H04N19/96 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/423 , H04N19/513
Abstract: The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.
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公开(公告)号：US11503282B2
公开(公告)日：2022-11-15
申请号：US17163218
申请日：2021-01-29
Inventor： Ha Hyun Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Jin Ho Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/61 , H04N19/159 , H04N19/107 , H04N19/70 , H04N19/593 , H04N19/176 , H04N19/196 , H04N19/13 , H04N19/157 , H04N19/169 , H04N19/11 , H04N19/50 , H04N19/137 , H04N19/513 , H04N19/105 , H04N19/109 , H04N19/52 , H04N19/91
Abstract: Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US11490100B2
公开(公告)日：2022-11-01
申请号：US17174843
申请日：2021-02-12
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 , H04N19/33 , H04N19/503
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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35.发明授权公开(公告)号：US11457238B2
公开(公告)日：2022-09-27
申请号：US17420106
申请日：2019-12-27
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS & MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim , Yung Lyul Lee , Ji Yeon Jung , Nam Uk Kim , Myung Jun Kim , Yang Woo Kim , Dae Yeon Kim , Jae Gon Kim
IPC: H04N7/12 , H04N19/593 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/503 , G06T9/00 , H04N19/189 , H04N19/132
Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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Patent Agency Ranking
36.发明授权公开(公告)号：US11445185B2
公开(公告)日：2022-09-13
申请号：US17277597
申请日：2019-09-18
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC: H04N19/11 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/593
Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current block by using an intra-prediction mode of a neighbor block adjacent to the current block, configuring a reference sample of the current block, and performing intra-prediction on the current block by using the intra-prediction mode and the reference sample, wherein when the intra-prediction mode of the neighbor block is unavailable, the intra-prediction mode of the neighbor block may be replaced with a planar mode.
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公开(公告)号：US11252424B2
公开(公告)日：2022-02-15
申请号：US16535991
申请日：2019-08-08
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 , H04N19/52 , H04N19/503 , H04N19/50 , 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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38.发明授权公开(公告)号：US11102471B2
公开(公告)日：2021-08-24
申请号：US15897440
申请日：2018-02-15
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Se Yoon Jeong , Hui Yong Kim , Sung Chang Lim , Jin Ho Lee , Ha Hyun Lee , Jong Ho Kim , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn , Gwang Hoon Park , Kyung Yong Kim , Han Soo Lee , Tae Ryong Kim
IPC: H04N19/10 , H04N19/105 , H04N19/136 , H04N19/196 , H04N19/61 , H04N19/46
Abstract: According to one embodiment of the present invention, a video information encoding method comprises: a step of predicting information of the current coding unit to generate prediction information; and a step of determining whether the information of the current coding unit coincides with the prediction information. If the information of the current coding unit coincides with the prediction information, a flag indicating that the information of the current coding unit coincides with the prediction information is encoded and transmitted. If the information of the current coding unit does not coincide with the prediction information, a flag indicating that the information of the current coding unit does not coincide with the prediction information is encoded and transmitted and the information of the current coding unit is encoded and transmitted. In the step of generating prediction information, the prediction information may be generated using the information on the coding unit adjacent to the current coding unit.
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公开(公告)号：US10958919B2
公开(公告)日：2021-03-23
申请号：US16784714
申请日：2020-02-07
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 , 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：US10958918B2
公开(公告)日：2021-03-23
申请号：US16778313
申请日：2020-01-31
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 , H04N19/33 , H04N19/503
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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