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公开(公告)号：US20190273924A1
公开(公告)日：2019-09-05
申请号：US16413870
申请日：2019-05-16
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 , H04N19/159 , H04N19/122 , H04N19/70 , H04N19/176 , H04N19/61 , H04N19/119 , H04N19/44 , H04N19/157 , H04N19/124 , H04N19/625 , H04N19/593 , H04N19/136
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：US20190261006A1
公开(公告)日：2019-08-22
申请号：US16400445
申请日：2019-05-01
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sang Min KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/159 , H04N19/13 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/61 , H04N19/52 , H04N19/15 , H04N19/51 , H04N19/593 , H04N19/503 , H04N19/436
Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
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公开(公告)号：US20190238850A1
公开(公告)日：2019-08-01
申请号：US16376492
申请日：2019-04-05
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/126 , H04N19/50 , H04N19/196 , H04N19/70 , H04N19/159 , H04N19/463 , H04N19/61
Abstract: The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.
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254.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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255.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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Patent Agency Ranking
公开(公告)号：US20190166365A1
公开(公告)日：2019-05-30
申请号：US16263314
申请日：2019-01-31
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 , H04N19/91 , H04N19/157 , H04N19/132 , H04N19/593 , H04N19/105 , H04N19/196 , H04N19/70 , H04N19/176
CPC classification number: H04N19/119 , H04N19/105 , H04N19/132 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70 , H04N19/91
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：US20190141348A1
公开(公告)日：2019-05-09
申请号：US16238204
申请日：2019-01-02
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：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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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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