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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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公开(公告)号：US09693055B2
公开(公告)日：2017-06-27
申请号：US14141685
申请日：2013-12-27
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION 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 , H04N7/26 , H04N19/577 , H04N19/51 , H04N19/70 , H04N19/105 , 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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75.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
76.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：US09510001B2
公开(公告)日：2016-11-29
申请号：US14326232
申请日：2014-07-08
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/12 , H04N11/02 , H04N11/04 , H04N19/117 , H04N19/176 , H04N19/30 , H04N19/14 , H04N19/80
CPC classification number: H04N19/117 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/30 , H04N19/51 , H04N19/61 , H04N19/80
Abstract: A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.
Abstract translation: 根据本发明的实施例的视频解码方法可以包括确定要应用于作为解码目标的第二层图片参考的第一层图像的滤波器的类型; 确定应用所述滤波器的所述第一层图像的滤波目标; 基于过滤器的类型对过滤目标进行过滤; 并将滤波的第一层图像添加到第二层参考图片列表。 因此，视频解码方法及其使用装置可以减少上层的预测误差，提高编码效率。
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公开(公告)号：US09282342B2
公开(公告)日：2016-03-08
申请号：US14821862
申请日：2015-08-10
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University , Korea Advanced Institute of Science and Technology
Inventor： Sung-Chang Lim , Ha Hyun Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Hae Chul Choi , Jong Ho Kim , Jin Ho Lee , Jin Soo Choi , Jin Woo Hong , Dong Gyu Sim , Seoung Jun Oh , Gwang Hoon Park , Mun Churl Kim , Neung Joo Hwang , Sea Nae Park
IPC: H04N7/26 , H04N19/625 , H04N19/176 , H04N19/50 , H04N19/124
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
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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：US20150350683A1
公开(公告)日：2015-12-03
申请号：US14821862
申请日：2015-08-10
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University , Korea Advanced Institute of Science and Technology
Inventor： Sung-Chang Lim , Ha Hyun Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Hae Chul Choi , Jong Ho Kim , Jin Ho Lee , Jin Soo Choi , Jin Woo Hong , Dong Gyu Sim , Seoung Jun Oh , Gwang Hoon Park , Mun Churl Kim , Neung Joo Hwang , Sea Nae Park
IPC: H04N19/625 , H04N19/50 , H04N19/124 , H04N19/176
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
Abstract translation: 提供了一种视频编码装置，其包括信号分离器，用于基于包含在差分图像块中的边界线将差分图像块分离成第一域和第二域，差分图像块指示原始图像和 相对于原始图像的预测图像，使用离散余弦变换（DCT）对相对于第一域执行变换编码的变换编码器，用于量化频域中的变换编码单位的输出的量化单元， 用于量化空间域中的第二域的空间域量化单元和使用量化单元和空间域量化单元的输出执行熵编码的熵编码器。
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