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公开(公告)号：EP3389270A1
公开(公告)日：2018-10-17
申请号：EP17750483.4
申请日：2017-02-13
发明人： LEE, Sun-il , MIN, Jung-hye , CHOI, Na-rae
IPC分类号： H04N19/105 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/176 , H04N19/503
CPC分类号： H04N19/176 , H04N19/122 , H04N19/136 , H04N19/159
摘要： Provided is a method of decoding motion information characterized in that information for determining motion-related information includes spatial information and time information, wherein the spatial information indicates a direction of spatial prediction candidates used for sub-units from among spatial prediction candidates located on a left side and an upper side of a current prediction unit, and the time information indicates a reference prediction unit of a previous picture used for prediction of the current prediction unit. Further, an encoding apparatus or a decoding apparatus capable of performing the above described encoding or decoding method may be provided.
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公开(公告)号：EP3355579A1
公开(公告)日：2018-08-01
申请号：EP16868864.6
申请日：2016-11-23
发明人： LIM, Kyung-min , MIN, Jung-hye , LEE, Sun-il
IPC分类号： H04N19/11 , H04N19/176 , H04N19/46 , H04N19/117 , H04N19/80
CPC分类号： H04N19/159 , H04N19/11 , H04N19/117 , H04N19/17 , H04N19/176 , H04N19/198 , H04N19/46 , H04N19/80 , H04N19/88
摘要： Provided is a video decoding method including determining a data unit for intra prediction from a video picture; obtaining, from a bitstream, intra prediction type information indicating whether to predict the data unit according to a first intra prediction type that predicts using predetermined prediction information or a second intra prediction type that predicts using data units adjacent to the data unit; determining a first data unit predicted according to the first intra prediction type and a second data unit predicted according to the second intra prediction type, based on the intra prediction type information obtained from the bitstream; generating a first prediction value with respect to the first data unit predicted according to the first intra prediction type by using the predetermined prediction information; and generating a second prediction value with respect to the second data unit predicted according to the second intra prediction type by using the data units adjacent to the data unit.
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3.发明公开
公开(公告)号：EP4418654A2
公开(公告)日：2024-08-21
申请号：EP24186361.2
申请日：2015-11-02
发明人： JEONG, Seung-soo , PARK, Min-woo , LEE, Jin-young , LEE, Sun-il
IPC分类号： H04N19/176
CPC分类号： H04N19/176 , H04N19/52
摘要： Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.
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4.发明公开ENCODING DEVICE, DECODING DEVICE, AND ENCODING METHOD AND DECODING METHOD THEREOF 审中-公开编码装置，解码装置，编码方法及解码方法
公开(公告)号：EP3300366A1
公开(公告)日：2018-03-28
申请号：EP16844589.8
申请日：2016-08-01
发明人： WON, Kwang-hyun , KIM, Chan-yul , LEE, Sun-il
IPC分类号： H04N19/146 , H04N19/44 , H04N19/182 , H04N19/176 , H04N19/50 , H04N19/80 , H04N19/51
CPC分类号： H04N19/625 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/463 , H04N19/48 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91
摘要： An encoding apparatus encoding a bitstream including an image frame is disclosed. The encoding apparatus comprises a selection unit for selecting a plurality of pixels including non-zero transform coefficients in a transform coefficient block constituting an image frame, an inverse transform unit for generating a plurality of groups of code candidates including combinations of codes assignable to the non-zero transform coefficients of the selected plurality of pixels and generating candidate reconstruction blocks by performing an inverse transform on each of the transform coefficient blocks in which the sign is assigned to the non-zero transform coefficients according to the generated plurality of groups of code candidates, a cost calculation unit for calculating a cost on the basis of a pixel value difference between pixel values of a plurality of pixels selected from among the generated candidate reconstruction blocks and pixel values of other pixels adjacent to the selected plurality of pixels and an encoding unit for assigning different predetermined codewords to a plurality of groups of code candidates on the basis of the calculated cost and encoding one codeword of the codewords into encoding information of non-zero transform coefficients of the selected plurality of pixels.
摘要翻译： 公开了编码包括图像帧的比特流的编码设备。 该编码装置包括：选择单元，用于在构成图像帧的变换系数块中选择包括非零变换系数的多个像素;逆变换单元，用于生成包括可分配给非 选择多个像素的零点变换系数，并根据所生成的多个代码候选组对各符号赋予非零变换系数的变换系数块进行逆变换来生成候选重建块 成本计算单元，用于基于从所生成的候选重建块中选择的多个像素的像素值与与所选择的多个像素相邻的其他像素的像素值之间的像素值差来计算成本，以及编码单元 用于分配不同的预定码字t o基于所计算的成本选择多个码候选组，并将所述码字的一个码字编码为所选择的多个像素的非零变换系数的编码信息。
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5.发明公开ENCODING METHOD AND DEVICE OF VIDEO USING DATA UNIT OF HIERARCHICAL STRUCTURE, AND DECODING METHOD AND DEVICE THEREOF 审中-公开视频编码方法和设备中，利用数据单位层次结构，解码方法和设备
公开(公告)号：EP2663075A2
公开(公告)日：2013-11-13
申请号：EP12732436.6
申请日：2012-01-06
发明人： LEE, Sun-il , JUNG, Hae-kyung , CHEON, Min-su
摘要： Disclosed are a method and a device for encoding a video by using a data unit of a hierarchical structure, and a method and a device for decoding the same. According to one embodiment of the present invention, a video encoding device: encodes a picture that constitutes a video on the basis of a data unit of a hierarchical structure; determines a context model that is used for entropy coding of a symbol on the basis of hierarchical information of a data unit to which a symbol for the encoded picture belongs; and entropy encodes the symbol by using the determined context model.
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公开(公告)号：EP3840379A1
公开(公告)日：2021-06-23
申请号：EP21156504.9
申请日：2016-11-24
发明人： LEE, Jin-young , CHOI, Ki-ho , KIM, Chan-yul , WON, Kwang-hyun , PIAO, Yin-ji , LEE, Sun-il
IPC分类号： H04N19/129 , H04N19/176 , H04N19/70 , H04N19/174
摘要： Video coding techniques are provided, including: determining a shape of one or more scanning units comprised in a current picture, the one or more scanning units consisting of a predetermined number of adjacent largest coding units from among a plurality of largest coding units split from the current picture; generating shape information indicating a number of largest coding units in a single row in the scanning unit and a number of largest coding units in a single column in the scanning unit, wherein a scanning unit consists of NxM largest coding units, wherein at least one of N and M is larger than 1, N indicates the number of largest coding units in a single row in the scanning unit, and M indicate the number of largest coding units in a single column in the scanning unit; determining a processing order of one or more scanning units of the current picture, as an order of performing processing from the lower scanning unit to the upper scanning unit; determining coding units by splitting at least one of a height and a width of the largest coding unit among largest coding units comprised in the one or more scanning units; and determining, as a processing order of the coding units in the largest coding unit, a first order of performing processing in a rightward direction or a second order of performing processing in a leftward direction.
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公开(公告)号：EP2663075B1
公开(公告)日：2020-05-06
申请号：EP12732436.6
申请日：2012-01-06
发明人： LEE, Sun-il , JUNG, Hae-kyung , CHEON, Min-su
IPC分类号： H04N19/176 , H04N19/70 , H04N19/13 , H04N19/196 , H04N19/149 , H04N19/122 , H04N19/12 , H04N19/91 , H04N19/157 , H04N19/18 , H04N19/192
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公开(公告)号：EP3396955A1
公开(公告)日：2018-10-31
申请号：EP17753423.7
申请日：2017-02-13
发明人： PARK, Min-woo , JIN, Bo-ra , CHOI, In-kwon , KIM, Chan-yul , CHOI, Na-rae , MIN, Jung-hye , LEE, Sun-il
IPC分类号： H04N19/119 , H04N19/176 , H04N19/105 , H04N19/182
CPC分类号： H04N19/105 , H04N19/11 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/593
摘要： Provided are a method and apparatus for adaptively partitioning a block. An image decoding method according to an embodiment includes determining reference pixels used to partition a coding unit, from among pixels adjacent to the coding unit, determining a partition location indicating a location of a boundary for partitioning the coding unit, based on at least one of a location having a highest pixel gradient and a location of a detected edge from among the reference pixels, obtaining a plurality of prediction units from the coding unit by partitioning the coding unit in a predetermined direction from the partition location, and predicting the plurality of prediction units.
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公开(公告)号：EP3203743A1
公开(公告)日：2017-08-09
申请号：EP15855617.5
申请日：2015-11-02
发明人： LEE, Jin-young , JEONG, Seung-soo , MIN, Jung-hye , LEE, Sun-il
IPC分类号： H04N19/50 , H04N19/513
CPC分类号： H04N19/52 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/70
摘要： A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.
摘要翻译： 本发明提供一种运动矢量编码装置及运动矢量编码方法，运动矢量编码装置的特征在于，包括：预测部，其利用空间候选块和当前块的时间候选块，取得多个预先确定的运动矢量分辨率的预测运动矢量候选， ，当前块的运动矢量和当前块的运动矢量分辨率; 以及编码器，被配置为对表示当前块的运动向量预测子的信息，当前块的运动向量与当前块的运动向量预测子之间的残余运动向量以及表示当前块的运动向量分辨率的信息进行编码 其中，所述多个预定运动矢量分辨率包括大于1像素单位的分辨率的像素单位的分辨率。
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10.发明公开
公开(公告)号：EP4418654A3
公开(公告)日：2024-11-06
申请号：EP24186361.2
申请日：2015-11-02
发明人： JEONG, Seung-soo , PARK, Min-woo , LEE, Jin-young , LEE, Sun-il
IPC分类号： H04N19/52 , H04N19/176
摘要： Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.
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