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公开(公告)号：US20190068990A1
公开(公告)日：2019-02-28
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 , H04N19/36 , H04N19/34 , H04N19/31 , H04N19/33 , H04N19/503 , H04N19/50 , H04N19/597 , H04N19/187 , H04N19/593 , H04N19/70
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：US20180324448A1
公开(公告)日：2018-11-08
申请号：US16040222
申请日：2018-07-19
Inventor： Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: 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：US20180324241A1
公开(公告)日：2018-11-08
申请号：US16036703
申请日：2018-07-16
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Truong Cong THANG , Jin Young LEE , Seong Jun BAE , Jung Won KANG , Soon Heung JUNG , Sang Taick PARK , Won RYU , Jae Gon KIM
IPC: H04L29/08 , H04L29/06 , H04N21/8543 , H04N21/84 , H04N21/658 , H04N21/61 , H04N21/262 , H04N21/2343 , H04N21/472
CPC classification number: H04L67/02 , H04L29/06027 , H04L65/4084 , H04L65/607 , H04L65/608 , H04N21/23439 , H04N21/26258 , H04N21/4305 , H04N21/47202 , H04N21/6125 , H04N21/6175 , H04N21/6581 , H04N21/84 , H04N21/8543
Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, aURL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other.
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公开(公告)号：US20180316919A1
公开(公告)日：2018-11-01
申请号：US16013419
申请日：2018-06-20
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/117 , H04N19/14 , H04N19/30 , H04N19/176 , H04N19/80 , H04N19/159
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.
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公开(公告)号：US20180316913A1
公开(公告)日：2018-11-01
申请号：US15772284
申请日：2016-11-18
Inventor： Dong San JUN , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/103 , H04N19/146 , H04N19/159 , H04N19/91 , H04N19/167 , H04N19/44
CPC classification number: H04N19/103 , H04N19/146 , H04N19/167 , H04N19/44
Abstract: Provided are method and apparatus methods and apparatuses for encoding an intra-prediction mode based on a secondary IPM. The present invention may comprises a first decision step of determining whether an intra-prediction mode of a current block is included in a first candidate mode set including M candidate modes (M is an integer equal to or greater than 1); a second decision step of determining whether the intra-prediction mode of the current block is included in a second candidate mode set including N candidate modes (N is an integer equal to or greater than 1) based on a first determination result representing a determination result of the first decision step; and an intra prediction mode encoding step of encoding the intra-prediction mode of the current block based on the first determination result or a second determination result representing a determination result of the second decision step.
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Patent Agency Ranking
公开(公告)号：US20180288421A1
公开(公告)日：2018-10-04
申请号：US15933040
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 , H04N19/70 , H04N19/187 , H04N19/30 , H04N19/172 , H04N19/184
CPC classification number: H04N19/159 , H04N19/172 , H04N19/184 , H04N19/187 , H04N19/30 , H04N19/70 , H05K999/99
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：US20180288125A1
公开(公告)日：2018-10-04
申请号：US15990251
申请日：2018-05-25
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Truong Cong THANG , Jin Young LEE , Seong Jun BAE , Jung Won KANG , Soon Heung JUNG , Sang Taick PARK , Won RYU , Jae Gon KIM
Abstract: A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content.
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公开(公告)号：US20180152730A1
公开(公告)日：2018-05-31
申请号：US15878741
申请日：2018-01-24
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
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：US20170238004A1
公开(公告)日：2017-08-17
申请号：US15585687
申请日：2017-05-03
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Ha Hyun LEE , Jung Won KANG , Jin Soo CHOI , Jin Woong KIM , Dong Gyu SIM , Hyo Min CHOI , Jung Hak NAM
IPC: H04N19/503 , H04N19/30
CPC classification number: H04N19/30 , H04N19/103 , H04N19/11 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/36 , H04N19/503 , H04N19/59
Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.
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公开(公告)号：US20170214942A1
公开(公告)日：2017-07-27
申请号：US15483124
申请日：2017-04-10
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 , H04N19/31 , H04N19/105 , H04N19/70
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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