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公开(公告)号：US20220303528A1
公开(公告)日：2022-09-22
申请号：US17739365
申请日：2022-05-09
申请人： Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Industry-Academia Cooperation Group of Sejong University
发明人： Jin-Ho LEE , Jae-Gon KIM , Jung-Won KANG , Do-Hyeon PARK , Yung-Lyul LEE , Ha-Hyun LEE , Sung-Chang LIM , Hui-Yong KIM , Ji-Hoon DO , Yong-Uk YOON
IPC分类号： H04N19/11 , H04N19/105 , H04N19/176 , H04N19/159 , H04N19/119
摘要： Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.
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12.发明申请公开(公告)号：US20210037245A1
公开(公告)日：2021-02-04
申请号：US16964878
申请日：2019-01-25
申请人： Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung-Chang LIM , Jung-Won KANG , Hyunsuk KO , Jin-Ho LEE , Ha-Hyun LEE , Dong-San JUN , Hui-Yong KIM , Yung-Lyul LEE , Nam-Uk KIM , Jae-Gon KIM
IPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/119 , H04N19/176
摘要： Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.
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公开(公告)号：US20190281290A1
公开(公告)日：2019-09-12
申请号：US16299661
申请日：2019-03-12
申请人： Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Industry-Academia Cooperation Group of Sejong University
发明人： Jin-Ho LEE , Jae-Gon KIM , Jung-Won KANG , Do-Hyeon PARK , Yung-Lyul LEE , Ha-Hyun LEE , Sung-Chang LIM , Hui-Yong KIM , Ji-Hoon DO , Yong-Uk YOON
IPC分类号： H04N19/11 , H04N19/159 , H04N19/105 , H04N19/119 , H04N19/176
摘要： Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.
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公开(公告)号：US20230169692A1
公开(公告)日：2023-06-01
申请号：US17981251
申请日：2022-11-04
发明人： Soo-Woong KIM , Jung-Won KANG , Gun BANG , Seong-Jun BAE , Jin-Ho LEE , Ha-Hyun LEE , Sung-Chang LIM
摘要： Disclosed herein are an apparatus and method for compressing 3D volume data. The apparatus for compressing three-dimensional (3D) volume data includes one or more processor, and execution memory configured to store at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive 3D volume data for data compression, select necessary voxels that contribute to formation of a geometric surface from the 3D volume data using a marching cubes algorithm, represent location information of the selected necessary voxels by a tree structure, and binarize the location information of the necessary voxels by serializing the tree structure, and quantize truncated signed distance values to surfaces adjacent to the necessary voxels constituting a volume from the 3D volume data using the binarized location information of the necessary voxels.
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15.发明申请公开(公告)号：US20210136395A1
公开(公告)日：2021-05-06
申请号：US16770534
申请日：2018-12-07
申请人： Electronics and Telecommunications Research Institute , RESEARCH AND BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人： Dong-San JUN , Jung-Won KANG , Hyunsuk KO , Sung-Chang LIM , Jin-Ho LEE , Ha-Hyun LEE , Byeung-Woo JEON , Hui-Yong KIM , Jee-Yoon PARK
IPC分类号： H04N19/44 , H04N19/122 , H04N19/60 , H04N19/593 , H04N19/119
摘要： Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Coding decision information of a representative channel of a target block is shared as coding decision information of a target channel of the target block, and decoding of the target block is performed using the coding decision information of the target channel. Since the coding decision information of the representative channel is shared with an additional channel, repeated signaling of identical coding decision information may be prevented. By means of this prevention, the efficiency of encoding and decoding of the target block or the like may be improved.
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公开(公告)号：US20240144578A1
公开(公告)日：2024-05-02
申请号：US18114118
申请日：2023-02-24
发明人： Soo-Woong KIM , Jung-Won KANG , Ji-Hoon DO , Gun BANG , Seong-Jun BAE , Jin-Ho LEE , Ha-Hyun LEE
摘要： Disclosed herein is a method for generating a texture map of a 3D mesh includes encoding a texture map of a 3D mesh, quantizing the encoded texture map, decoding the quantized texture map, performing rendering using the decoded texture map, and updating the texture map of the 3D mesh based on the value of a loss function.
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公开(公告)号：US20230171390A1
公开(公告)日：2023-06-01
申请号：US17981426
申请日：2022-11-06
发明人： Seong-Jun BAE , Jung-Won KANG , Soo-Woong KIM , Gun BANG , Jin-Ho LEE , Ha-Hyun LEE , Sung-Chang LIM
IPC分类号： H04N13/161 , H04N19/30 , H04N19/187
CPC分类号： H04N13/161 , H04N19/30 , H04N19/187 , H04N2013/0077
摘要： Disclosed herein are an image compression apparatus and method. The image conversion method includes generating a multi-plane image reconfigured into layers in a depth direction based on multiple pieces of multi-view image data, generating an aggregated layer by aggregating the layers of the multi-plane image into at least one layer, and converting a multi-plane image including the aggregated layer into a two-dimensional (2D) atlas image.
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公开(公告)号：US20230032574A1
公开(公告)日：2023-02-02
申请号：US17965160
申请日：2022-10-13
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
发明人： Sung-Chang LIM , Jung-Won KANG , Hyunsuk KO , Jin-Ho LEE , Ha-Hyun LEE , Dong-San JUN , Seung-Hyun CHO , Hui-Yong KIM , Yung-Lyul LEE , Jun-Woo CHOI , Jin-Soo CHOI , Nam-Uk KIM , Myung-Jun KIM
IPC分类号： H04N19/117 , H04N19/132 , H04N19/44 , H04N19/80 , H04N19/70 , H04N19/513 , H04N19/19 , H04N19/122 , H04N19/176
摘要： Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus, and more particularly, a method and apparatus for performing filtering in video encoding and decoding. An encoding apparatus may perform filtering on a target, and may generate filtering information indicating whether filtering has been performed on the target. Further, the encoding apparatus may generate a bitstream including filtering information. A decoding apparatus may determine, based on filtering information, whether to perform filtering on a target, and may perform filtering on the target. The decoding apparatus may receive filtering information from the encoding apparatus through a bitstream or may derive filtering information using additional information.
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19.发明申请公开(公告)号：US20220295059A1
公开(公告)日：2022-09-15
申请号：US17634944
申请日：2020-08-13
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Jung-Won KANG , Ha-Hyun LEE , Sung-Chang LIM , Jin-Ho LEE , Hui-Yong KIM , Gwang-Hoon PARK , Tae-Hyun KIM , Dae-Young LEE , Woo-Woen GWUN , Won-Jun LEE
IPC分类号： H04N19/119 , H04N19/11 , H04N19/593 , H04N19/70 , H04N19/176 , H04N19/186 , H04N19/139
摘要： Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using partitioning. Various prediction methods and prediction modes may be used for prediction of a block. When a block is partitioned, information related to partitioning, such as information indicating whether partitioning is to be performed and information specifying the type of partitioning, is signaled. Also, when partitioning is applied to the block, an available prediction method and an available prediction method in prediction for the block may be restricted in prediction for the block. For optimization of signaling, multiple pieces of information related to prediction may be signaled, wherein the pieces of information may have dependency relationships, and in some cases, additional information may be derived as specific values depending on the value of one piece of information, and signaling of the additional information may be skipped. There can be provided various methods for efficiently signaling multiple pieces of information based on the restrictions and dependency relationships.
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公开(公告)号：US20230082092A1
公开(公告)日：2023-03-16
申请号：US17768186
申请日：2020-10-12
发明人： Jung-Won KANG , Sung-Chang LIM , Jin-Ho LEE , Ha-Hyun LEE
IPC分类号： H04N19/12 , H04N19/60 , H04N19/176 , H04N19/463 , H04N19/169 , H04N19/119 , H04N19/157 , H04N19/186
摘要： Disclosed herein are a method, an apparatus and a storage medium for transform information encoding/decoding. A transform includes a primary transform and a secondary transform. A primary transform method and a secondary transform method are selected from among multiple different methods. A transform is performed on a target block based on a selected primary transform method and a selected secondary transform method. A primary transform method and a secondary transform method applied to the target block may be signaled using transform information such as a primary transform method index and a secondary transform method index.
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