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公开(公告)号：US10735752B2
公开(公告)日：2020-08-04
申请号：US15997106
申请日：2018-06-04
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/12 , H04N19/33 , H04N19/597 , H04N19/30
Abstract: Disclosed is technology associated with video encoding and decoding having a structure including one or more layers (quality, spatial, and view) and technology associated with a method that predicts an higher layer signal by using one or more reference layers in encoding and decoding an higher layer. In more detail, an interlayer prediction is capable of being performed by considering a characteristic of each layer by separating a spatial and quality reference layer list constituted by spatial and quality layers to be referred at the same view as a target layer and a view reference layer list constituted by the same spatial and quality layers as a target layer in encoding and decoding encoding and decoding pictures of an higher layer in encoding and decoding encoded and decoded pictures of the higher layer to improve encoding and decoding efficiency.
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公开(公告)号：US20200169741A1
公开(公告)日：2020-05-28
申请号：US16778313
申请日：2020-01-31
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/182 , H04N19/91 , H04N19/80 , H04N19/593 , H04N19/52 , H04N19/13 , H04N19/124 , H04N19/61 , H04N19/70 , H04N19/169 , H04N19/46 , H04N19/31 , H04N19/30
Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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公开(公告)号：US10531115B2
公开(公告)日：2020-01-07
申请号：US16174036
申请日：2018-10-29
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/52 , H04N19/30 , H04N19/187 , H04N19/50 , H04N19/70 , H04N19/593 , H04N19/597 , H04N19/503 , H04N19/33 , H04N19/31 , H04N19/34 , H04N19/36
Abstract: According to the present invention, an image decoding method for supporting a plurality of layers includes the steps of: receiving and parsing layer-dependent information for reference layers that can be referenced by a current layer in an entire bitstream; when interlayer prediction is used in decoding a current picture in the current layer, receiving and parsing layer information for a reference layer referenced by the current picture among the reference layers; and decoding the current picture on the basis of the layer information.
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公开(公告)号：US10432950B2
公开(公告)日：2019-10-01
申请号：US15875148
申请日：2018-01-19
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/176 , H04N19/105 , H04N19/52 , H04N19/70 , H04N19/463 , H04N19/33 , H04N19/31
Abstract: Disclosed are a method and an apparatus for image encoding/decoding that support a plurality of layers. The method for image decoding that supports a plurality of layers includes decoding information of a first layer which a picture of a second layer including a current decoding target block refers to; mapping the information of the first layer to a picture size of the second layer, configuring a reference picture list for the picture of the second layer by adding the mapped information of the first layer and generating prediction samples of the current decoding target block by predicting the current decoding target block of the second layer based on the reference picture list, and the information of the first layer includes at least one of a sample value and motion information of the first layer picture.
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公开(公告)号：US10326997B2
公开(公告)日：2019-06-18
申请号：US15933051
申请日：2018-03-22
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/159 , H04N19/187 , H04N19/184 , H04N19/30 , H04N19/172 , H04N19/70
Abstract: A method of decoding a image according to an embodiment of the present invention, which supports a plurality of layers, may comprise the steps of: receiving information on a reference layer used to decode a current picture for inter-layer prediction; inducing the number of valid reference layer pictures used to decode the current picture on the basis of the information on the reference layer; and performing inter-layer prediction on the basis of the number of valid reference layer pictures.
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Patent Agency Ranking
公开(公告)号：US10291920B2
公开(公告)日：2019-05-14
申请号：US15928964
申请日：2018-03-22
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/159 , H04N19/187 , H04N19/184 , H04N19/30 , H04N19/172 , H04N19/70
Abstract: A method of decoding a image according to an embodiment of the present invention, which supports a plurality of layers, may comprise the steps of: receiving information on a reference layer used to decode a current picture for inter-layer prediction; inducing the number of valid reference layer pictures used to decode the current picture on the basis of the information on the reference layer; and performing inter-layer prediction on the basis of the number of valid reference layer pictures.
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公开(公告)号：US10277918B2
公开(公告)日：2019-04-30
申请号：US15888264
申请日：2018-02-05
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 , H04N19/105 , H04N19/70 , H04N19/31 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/177
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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公开(公告)号：US10091519B2
公开(公告)日：2018-10-02
申请号：US15028570
申请日：2014-10-13
Inventor： Jung Won Kang , Jin Ho Lee , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/13 , H04N19/436 , H04N19/30
Abstract: Disclosed are a method and an apparatus for video decoding that support a plurality of layers. The method for video decoding includes acquiring information indicating whether tile information exists and acquiring the tile information based on the information indicating whether tile information exists.
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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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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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