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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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113.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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Patent Agency Ranking
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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公开(公告)号：US09148662B2
公开(公告)日：2015-09-29
申请号：US14040132
申请日：2013-09-27
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: H04N19/18 , H04N19/176 , H04N19/60 , H04N19/12 , H04N19/14 , H04N19/182
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：US20150078446A1
公开(公告)日：2015-03-19
申请号：US14387454
申请日：2013-03-25
Inventor： Dong San Jun , Jung Won Kang , Ha Hyun Lee , Youn Hee Kim , Soon Heung Jung , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/503 , H04N19/593
CPC classification number: H04N19/503 , H04N19/30 , H04N19/33 , H04N19/59 , H04N19/593
Abstract: The present invention relates to a method and an apparatus for inter-layer intra prediction. The method for inter-layer intra prediction comprises: a step of determining a reference layer for inter-layer intra prediction; a step of generating intra prediction information from the reference layer; and a step of performing inter-layer prediction on the current block based on the intra prediction information. In cases where the same location block of the reference block corresponding to the prediction object frame on a temporal axis is inter predicted in the reference layer, intra prediction information is generated based on the intra predicted same location block from among the previous and post frames of the reference frame.
Abstract translation: 本发明涉及一种层间帧内预测的方法和装置。 层间帧内预测方法包括：确定用于层间帧内预测的参考层的步骤; 从参考层生成帧内预测信息的步骤; 以及基于帧内预测信息对当前块执行层间预测的步骤。 在参考层中对与时间轴上的预测对象帧相对应的参考块的相同位置块进行帧间预测的情况下，基于帧内预测相同位置块生成帧内预测信息， 参考框架。
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119.发明申请IMAGE INFORMATION DECODING METHOD, IMAGE DECODING METHOD, AND DEVICE USING SAME 审中-公开图像信息解码方法，图像解码方法和使用其的设备公开(公告)号：US20150063453A1
公开(公告)日：2015-03-05
申请号：US14391061
申请日：2013-04-16
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/52 , H04N19/91 , H04N19/80 , H04N19/13 , H04N19/61 , H04N19/593 , H04N19/124
Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.
Abstract translation: 图像信息解码方法技术领域本发明涉及图像信息解码方法。 解码方法包括接收包括包括与编码图像有关的信息的网络抽象层（NAL）单元以及解析NAL单元的NAL单元头部的比特流。 NAL单元头部可以不包括在编码期间表示整个比特流中图像是非参考图像还是参考图像的1比特标志信息。
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公开(公告)号：US20140286434A1
公开(公告)日：2014-09-25
申请号：US14350267
申请日：2012-10-05
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/33 , H04N19/80 , H04N19/187
Abstract: The present invention relates to an image-encoding method, to an image-decoding method, and to an apparatus using same. The image-encoding method according to the present invention comprises the following steps: determining the location of a corresponding sample in a reference layer; restoring a sample of a reference unit in the reference layer, specified by the corresponding sample, so as to generate a reference sample signal; and encoding a differential signal between the sample signal of the current unit of an enhancement layer and the reference sample signal.
Abstract translation: 本发明涉及一种图像编码方法，一种图像解码方法以及使用该方法的装置。 根据本发明的图像编码方法包括以下步骤：确定参考层中相应样本的位置; 恢复由相应样本指定的参考层中的参考单元的样本，以产生参考采样信号; 并且对增强层的当前单元的采样信号和参考采样信号之间的差分信号进行编码。
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