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公开(公告)号：US09883182B2
公开(公告)日：2018-01-30
申请号：US15408695
申请日：2017-01-18
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: H04N19/105 , H04N19/159 , H04N19/513 , H04N19/176 , H04N19/172
CPC classification number: H04N19/105 , H04N19/103 , H04N19/124 , H04N19/136 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/503 , H04N19/513 , H04N19/52
Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.
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公开(公告)号：US09866839B2
公开(公告)日：2018-01-09
申请号：US14373270
申请日：2013-01-21
Inventor： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/12 , H04N19/126 , H04N19/159 , H04N19/61 , H04N19/70 , H04N19/463 , H04N19/196 , H04N19/50 , H04N19/176
CPC classification number: H04N19/126 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/198 , H04N19/463 , H04N19/50 , H04N19/61 , H04N19/70
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 including 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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公开(公告)号：US09854248B2
公开(公告)日：2017-12-26
申请号：US15337309
申请日：2016-10-28
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY—INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong Kim , Gwang Hoon Park , Kyung Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/12 , H04N11/02 , H04N11/04 , H04N19/159 , H04N19/105 , H04N19/52 , H04N19/139 , H04N19/176 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/61
CPC classification number: H04N19/159 , H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/52 , H04N19/61
Abstract: An inter-prediction method according to the present invention comprises the steps of: deriving motion information of a current block; and generating a prediction block for the current block on the basis of the derived motion information. According to the present invention, computational complexity can be reduced and encoding efficiency can be improved.
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公开(公告)号：US09838711B2
公开(公告)日：2017-12-05
申请号：US15433890
申请日：2017-02-15
Inventor： Jin Ho Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Ha Hyun Lee , Jong Ho Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/105 , H04N19/593 , H04N19/117 , H04N19/182 , H04N19/176
CPC classification number: H04N19/593 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/82
Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
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65.发明授权Method and apparatus for setting reference picture index of temporal merging candidate 有权设置临时合并候选人参考图片索引的方法和装置公开(公告)号：US09596466B2
公开(公告)日：2017-03-14
申请号：US14354819
申请日：2012-12-18
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: H04N19/00 , H04N19/503 , H04N19/105 , H04N19/176 , H04N19/136
CPC classification number: H04N19/105 , H04N19/103 , H04N19/124 , H04N19/136 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/503 , H04N19/513 , H04N19/52
Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.
Abstract translation: 本发明涉及用于设定时间合并候选的参考图像索引的方法和装置。 使用时间合并候选的图像间预测方法可以包括以下步骤：确定当前块的参考图像索引; 以及诱导所述当前块的时间合并候选块并且从所述时间合并候选块计算时间合并候选，其中可以计算所述时间合并候选的参考图像索引，而不管所述当前块之外的块是否被解码。 因此，可以提高视频处理速度，并且可以减少视频处理的复杂度。
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Patent Agency Ranking
66.发明授权公开(公告)号：US09516323B2
公开(公告)日：2016-12-06
申请号：US15137189
申请日：2016-04-25
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/124 , H04N19/186 , H04N19/463 , H04N19/157 , H04N19/122 , H04N19/46
CPC classification number: H04N19/124 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/13 , H04N19/15 , H04N19/157 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/43 , H04N19/46 , H04N19/463 , H04N19/61
Abstract: Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.
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公开(公告)号：US09270990B2
公开(公告)日：2016-02-23
申请号：US14347709
申请日：2012-09-27
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/44 , H04N19/196 , H04N19/82 , H04N19/70 , H04N19/61
CPC classification number: H04N19/196 , H04N19/61 , H04N19/70 , H04N19/82
Abstract: Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or a transform unit (TU) supports constrained offset compensation; receives, from the encoder, a second indicator indicating whether constrained sample adaptive offset (SAO) compensation or an adaptive loop filter (ALF) is applied; receives a parameter from the encoder; and applies the SAO compensation or the ALF to pixels of a restored image on the basis of the second indicator and the parameter.
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公开(公告)号：US20150189289A1
公开(公告)日：2015-07-02
申请号：US14412316
申请日：2013-07-02
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: H04N19/176 , H04N19/167 , H04N19/196 , H04N19/12
CPC classification number: H04N19/167 , H04N19/126 , H04N19/18 , H04N19/46
Abstract: Disclosed are a method and an apparatus for coding/decoding an image. The method for decoding the image comprises the steps of: deriving a scale factor of a current block, depending on whether the current block is a conversion skip block; and scaling the current block on the basis of the scale factor, wherein the scale factor of the current block is derived on the basis of the position of a conversion coefficient inside the current block, and wherein the conversion skip block is the current block to which conversion is not applied and is specified on the basis of information indicating whether to apply reconversion to the current block.
Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 用于解码图像的方法包括以下步骤：取决于当前块是转换跳过块，导出当前块的比例因子; 并且根据比例因子缩放当前块，其中当前块的比例因子基于当前块内的转换系数的位置导出，并且其中转换跳跃块是当前块，当前块 转换不被应用，并且基于指示是否对当前块应用重新转换的信息来指定。
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公开(公告)号：US20150078442A1
公开(公告)日：2015-03-19
申请号：US14382251
申请日：2013-04-16
Inventor： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/126 , H04N19/60 , H04N19/44
CPC classification number: H04N19/126 , H04N19/129 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/463 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/96
Abstract: A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients.
Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 解码图像的方法包括以下步骤：解码量化矩阵上的信息; 并且根据关于量化矩阵的信息来恢复量化矩阵，其中关于量化矩阵的信息包括指示量化矩阵的DC值的信息和/或指示量化矩阵系数的差分值的信息。
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公开(公告)号：US20140362906A1
公开(公告)日：2014-12-11
申请号：US14372278
申请日：2013-01-18
Inventor： Hui Yong Kim , Jin Ho Lee , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/51 , H04N19/583 , H04N19/182 , H04N19/159 , H04N19/105
CPC classification number: H04N19/51 , H04N19/105 , H04N19/182 , H04N19/196 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/82
Abstract: A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a fmal correction value that is calculated by performing an arithmetic right shift by a binary digit I for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. The operational complexity during image encoding/decoding can be reduced.
Abstract translation: 根据本发明的用于解码图像的方法包括以下步骤：通过对熵解码的残余块执行逆量化和逆变换来恢复残差块; 通过对当前块执行帧内预测来生成预测块; 以及通过将所述恢复的残差块加到所述预测块中来恢复图像，其中，所述生成所述预测块的步骤还包括根据所述预测块的第一预测值生成要预测的像素的最终预测值的步骤 包含在当前块中的要预测的像素，以及通过对二进制补码整数表示相对于像素的初始校正值执行二进制数字I的算术右移而计算出的伪校正值， 被预测。 可以减少图像编码/解码期间的操作复杂度。
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