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公开(公告)号：EP4336831A2
公开(公告)日：2024-03-13
申请号：EP23201363.1
申请日：2012-09-14
申请人： Electronics and Telecommunications Research Institute , University-industry Cooperation Foundation Korea Aerospace University
发明人： LIM, Sung Chang , KIM, Hui Yong , LEE, Jin Ho , CHOI, Jin Soo , KIM, Woong , KIM, Jae Gon , LEE, Sang Yong , PARK, Un Ki
IPC分类号： H04N19/176
摘要： Disclosed are a method for inducing a prediction motion vector and an apparatus using the same. An image decoding method can include: a step of determining the information related to a plurality of spatial candidate prediction motion vectors from peripheral predicted blocks of a predicted target block; and a step of determining the information related to temporal candidate prediction motion vectors on the basis of the information related to the plurality of spatial candidate prediction motion vectors. Accordingly, the present invention can reduce complexity and can enhance coding efficiency when inducing the optimum prediction motion vector.
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公开(公告)号：EP4152751A1
公开(公告)日：2023-03-22
申请号：EP22206419.8
申请日：2013-01-18
发明人： LIM, Sung Chang , KIM, Hui Yong , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong
IPC分类号： H04N19/52
摘要： 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 entropydecoded 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：EP3985979A1
公开(公告)日：2022-04-20
申请号：EP21213733.5
申请日：2011-12-13
发明人： LIM, Sung Chang , KIM, Hui Yong , JEONG, Se Yoon , CHO, Suk Hee , LEE, Ha Hyun , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk , KIM, Jong Ho
IPC分类号： H04N19/52 , H04N19/176 , H04N19/50 , H04N19/44
摘要： 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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公开(公告)号：EP3968641A1
公开(公告)日：2022-03-16
申请号：EP21202102.6
申请日：2013-01-18
发明人： LIM, Sung Chang , KIM, Hui Yong , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong
IPC分类号： H04N19/52
摘要： 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：EP3968640A1
公开(公告)日：2022-03-16
申请号：EP21202078.8
申请日：2013-01-18
发明人： LIM, Sung Chang , KIM, Hui Yong , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong
IPC分类号： H04N19/52
摘要： 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：EP3965419A1
公开(公告)日：2022-03-09
申请号：EP20802761.5
申请日：2020-04-29
发明人： LIM, Sung Chang , KANG, Jung Won , LEE, Ha Hyun , LEE, Jin Ho , KIM, Hui Yong , KIM, Dae Yeon
IPC分类号： H04N19/132 , H04N19/109 , H04N19/105 , H04N19/513 , H04N19/176 , H04N19/186
摘要： Disclosed herein is an image encoding/decoding method. A method of decoding an image includes determining an intra prediction mode of a current block, and generating a prediction block of the current block, by performing prediction based on the intra prediction mode. When the intra prediction mode of the current block is a matrix-based intra prediction (MIP) mode, a length of a reference sample used for intra prediction is derived based on a length of the current block.
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公开(公告)号：EP3855744A1
公开(公告)日：2021-07-28
申请号：EP21163746.7
申请日：2013-01-21
发明人： LIM, Sung Chang , KIM, Hui Yong , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong
IPC分类号： H04N19/50 , H04N19/176 , H04N19/159 , H04N19/70 , H04N19/61 , H04N19/463 , H04N19/126
摘要： The present invention relates to methods of coding/decoding a quantization matrix and apparatuses using the same. A method of coding a quantization matrix in accordance with the present invention includes determining and quantizing a quantization matrix to be used in quantization, determining a prediction method of the quantization matrix used in the quantization, and coding information about the quantization matrix in accordance with the determined prediction method, wherein the prediction method may be any one of a method of predicting an inter-coefficient prediction method within the quantization matrix and a copying of the quantization matrix.
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58.发明授权
公开(公告)号：EP2627085B1
公开(公告)日：2020-11-25
申请号：EP11830881.6
申请日：2011-10-04
申请人： Electronics and Telecommunications Research Institute , Korea Advanced Institute Of Science And Technology
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59.发明公开
公开(公告)号：EP3720122A1
公开(公告)日：2020-10-07
申请号：EP20170161.2
申请日：2011-10-04
申请人： Electronics and Telecommunications Research Institute , Korea Advanced Institute Of Science And Technology
发明人： KIM, Jong Ho , KIM, Hui Yong , JEONG, Se Yoon , LIM, Sung Chang , LEE, Ha Hyun , LEE, Jin Ho , CHO, Suk Hee , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk , KIM, Mun Churl , LEE, Bum Shik
摘要： Disclosed are an encoding/decoding method of an intra prediction mode using two candidate intra prediction modes, and a device for using the same. The 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. Thus, the invention increases encoding/decoding efficiency and reduces complexity.
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60.发明公开
公开(公告)号：EP3700208A1
公开(公告)日：2020-08-26
申请号：EP18868567.1
申请日：2018-10-18
发明人： LEE, Jin Ho , KANG, Jung Won , KO, Hyun Suk , LIM, Sung Chang , LEE, Ha Hyun , JUN, Dong San , KIM, Hui Yong
IPC分类号： H04N19/132 , H04N19/11 , H04N19/105 , H04N19/593 , H04N19/176 , H04N19/119 , H04N19/124 , H04N19/186
摘要： An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.
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