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171.发明申请公开(公告)号：US20200029071A1
公开(公告)日：2020-01-23
申请号：US16338011
申请日：2017-09-29
Inventor： Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Ha Hyun LEE , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/105 , H04N19/176 , H04N19/119 , H04N19/96 , H04N19/70 , H04N19/186 , H04N19/159
Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
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172.发明申请公开(公告)号：US20190222837A1
公开(公告)日：2019-07-18
申请号：US16302462
申请日：2017-07-17
Inventor： Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Dong San JUN , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/107 , H04N19/126 , H04N19/146 , H04N19/176 , H04N19/30 , H04N19/44 , H04N19/52 , H04N19/91
CPC classification number: H04N19/107 , H04N19/124 , H04N19/126 , H04N19/146 , H04N19/176 , H04N19/30 , H04N19/44 , H04N19/513 , H04N19/52 , H04N19/91
Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.
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173.发明申请公开(公告)号：US20190208199A1
公开(公告)日：2019-07-04
申请号：US16325253
申请日：2017-09-11
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 , H04N19/96 , H04N19/105 , H04N19/176 , H04N19/119
CPC classification number: H04N19/11 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/426 , H04N19/91 , 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：US20190141334A1
公开(公告)日：2019-05-09
申请号：US16099998
申请日：2017-05-23
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/139 , H04N19/124 , H04N19/117 , H04N19/51 , H04N19/91
CPC classification number: H04N19/139 , H04N19/117 , H04N19/124 , H04N19/51 , H04N19/52 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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公开(公告)号：US20190141326A1
公开(公告)日：2019-05-09
申请号：US16236019
申请日：2018-12-28
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: H04N19/124 , H04N19/33 , H04N19/14 , H04N19/119 , H04N19/196 , H04N19/176 , H04N19/463 , H04N19/70
Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.
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Patent Agency Ranking
公开(公告)号：US20190141325A1
公开(公告)日：2019-05-09
申请号：US16235878
申请日：2018-12-28
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: H04N19/124 , H04N19/33 , H04N19/14 , H04N19/119 , H04N19/196 , H04N19/176 , H04N19/463 , H04N19/70
Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.
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公开(公告)号：US20190045199A1
公开(公告)日：2019-02-07
申请号：US16157217
申请日：2018-10-11
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/187 , H04N19/157 , H04N19/107 , H04N19/30 , H04N19/503
Abstract: A method of decoding a bistream comprising a plurality of layers according to the present invention includes setting parameters for decoding the bitstream from a random access point when random access occurs, and decoding a decoding target picture, wherein the setting of the parameters includes setting an initialization flag indicating whether the decoding target picture, that is an intra random access point (IRAP) picture, is output by correctly decoding all reference layers of a target layer including the decoding target picture when the random access occurs; setting a flag variable (NoRaslOutputFlag) indicating whether the decoding target picture is used as a random access point; and resetting the initialization flag when the decoding target picture is an IRAP picture and the flag variable is 1.
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178.发明申请公开(公告)号：US20190037229A1
公开(公告)日：2019-01-31
申请号：US16134579
申请日：2018-09-18
Applicant: Electronics and Telecommunications Research Institute , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Ho KIM , Hui Yong KIM , Se Yoon JEONG , Sung Chang LIM , Ha Hyun LEE , Jin Ho LEE , Suk Hee CHO , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Mun Churl KIM , Bum Shik LEE
Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
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公开(公告)号：US20180234678A1
公开(公告)日：2018-08-16
申请号：US15954432
申请日：2018-04-16
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 , H04N19/593 , H04N19/176 , H04N19/157 , H04N19/11 , H04N19/503 , H04N19/46
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：US20180205966A1
公开(公告)日：2018-07-19
申请号：US15878870
申请日：2018-01-24
Applicant: Electronics and Telecommunications Research Institute. , Industry-Academic Cooporation Group of Sejong University.
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Jong Ki HAN , Jae Yung LEE
IPC: H04N19/597 , H04N19/105 , H04N19/70 , H04N19/31 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/177
CPC classification number: H04N19/597 , H04N19/105 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/184 , H04N19/31 , H04N19/70
Abstract: The present invention is related to a method for moving the position of a base view from an arbitrary GOP (Group Of Pictures) start position to implement an efficient encoding structure in multi-view video encoding. The existing multi-view video encoding method exhibits low encoding efficiency when correlation between the base view and a dependent view is low, since the base view is assumed to be fixed. Moreover, in case the view in a live broadcasting program desired by a producer changes from the base view to another, the user has to consume more bit streams and decoder complexity than those consumed when decoding is performed with respect to the base view. Therefore, to alleviate the drawbacks of the existing multi-view video encoding method, the present invention provides a method for designing syntax elements by which the base view can be moved, thereby supporting an efficient encoding structure.
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