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公开(公告)号：US20200280735A1
公开(公告)日：2020-09-03
申请号：US16620545
申请日：2018-06-05
发明人： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Dong San JUN , Jin Ho LEE , Ha Hyun LEE , Hui Yong KIM
IPC分类号： H04N19/523 , H04N19/176
摘要： Disclosed is an image encoding method. The method includes deriving a motion refinement candidate from among motion information of spatial neighboring blocks, motion information of a temporal neighboring blocks, predefined motion information, and motion information that most frequently occurs in a reference picture, performing a motion information refinement on the derived motion refinement candidate, and generating a prediction block of a current block by using the motion refinement candidate having undergone the motion information refinement.
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公开(公告)号：US20200252620A1
公开(公告)日：2020-08-06
申请号：US16850342
申请日：2020-04-16
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin woong KIM , Jae Gon KIM , Hae Chul CHOI , Sang Yong LEE
IPC分类号： H04N19/157 , H04N19/593 , H04N19/196 , H04N19/11 , H04N19/70 , H04N19/176
摘要： An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.
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63.发明申请公开(公告)号：US20200236362A1
公开(公告)日：2020-07-23
申请号：US16650591
申请日：2018-09-28
发明人： Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM
IPC分类号： H04N19/137 , H04N19/159 , H04N19/52 , H04N19/513 , H04N19/176
摘要： An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprises determining step for determining whether or not to derive second motion information when a current block includes first motion information only and for which bi-directional prediction is available, a deriving step for deriving the second motion information based on the first motion information, and a predicting step for generating a prediction block of the current block by performing BIO prediction based on the first motion information and the second motion information.
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公开(公告)号：US20200092551A1
公开(公告)日：2020-03-19
申请号：US16691203
申请日：2019-11-21
发明人： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC分类号： H04N19/117 , H04N19/61 , H04N19/51 , H04N19/159 , H04N19/13 , H04N19/124 , H04N19/105 , H04N19/80 , H04N19/14 , H04N19/30 , H04N19/176
摘要： 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：US20200029079A1
公开(公告)日：2020-01-23
申请号：US16494027
申请日：2018-02-27
发明人： Dae Yeon KIM , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC分类号： H04N19/13 , H04N19/176 , H04N19/103 , H04N19/124 , H04N19/70
摘要： According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.
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公开(公告)号：US20190297325A1
公开(公告)日：2019-09-26
申请号：US16301409
申请日：2017-07-11
发明人： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176
摘要： The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.
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公开(公告)号：US20190166375A1
公开(公告)日：2019-05-30
申请号：US16321145
申请日：2017-08-01
发明人： Dong San JUN , Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC分类号： H04N19/159 , H04N19/126 , H04N19/13 , H04N19/50 , H04N19/176
摘要： An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra prediction mode for a current block, selecting at least one reconstructed sample line neighboring to the current block, constructing a reference sample using at least one reconstructed sample included in the at least one reconstructed sample line, and performing intra prediction for the current block based on the intra prediction mode and the reference sample.
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公开(公告)号：US20190149820A1
公开(公告)日：2019-05-16
申请号：US16244854
申请日：2019-01-10
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University
发明人： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC分类号： H04N19/117 , H04N19/176 , H04N19/82 , H04N19/159 , H04N19/192 , H04N19/174 , H04N19/46 , H04N19/50 , H04N19/17 , H04N19/132 , H04N19/593 , H04N19/109
摘要： The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
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公开(公告)号：US20190110073A1
公开(公告)日：2019-04-11
申请号：US16206696
申请日：2018-11-30
发明人： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC分类号： H04N19/593 , H04N19/82 , H04N19/182 , H04N19/157 , H04N19/117 , H04N19/80 , H04N19/159 , H04N19/105 , H04N19/136 , H04N19/44 , H04N19/137 , H04N19/122 , H04N19/11
摘要： According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20190110068A1
公开(公告)日：2019-04-11
申请号：US16214805
申请日：2018-12-10
申请人： Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University
发明人： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Jae Gon KIM , Sang Yong LEE , Un Ki PARK
IPC分类号： H04N19/56 , H04N19/593 , H04N19/513 , H04N19/70 , H04N19/13 , H04N19/52
摘要： Disclosed are a method for inducing a prediction motion vector and an apparatus using the same. An image decoding method can include: a step of determining the information related to a plurality of spatial candidate prediction motion vectors from peripheral predicted blocks of a predicted target block; and a step of determining the information related to temporal candidate prediction motion vectors on the basis of the information related to the plurality of spatial candidate prediction motion vectors. Accordingly, the present invention can reduce complexity and can enhance coding efficiency when inducing the optimum prediction motion vector.
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