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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
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： 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: H04N19/157 , H04N19/593 , H04N19/196 , H04N19/11 , H04N19/70 , H04N19/176
Abstract: 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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公开(公告)号：US20200092551A1
公开(公告)日：2020-03-19
申请号：US16691203
申请日：2019-11-21
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/117 , H04N19/61 , H04N19/51 , H04N19/159 , H04N19/13 , H04N19/124 , H04N19/105 , H04N19/80 , H04N19/14 , H04N19/30 , H04N19/176
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：US20190297325A1
公开(公告)日：2019-09-26
申请号：US16301409
申请日：2017-07-11
Inventor： 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: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176
Abstract: 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
Inventor： 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: H04N19/159 , H04N19/126 , H04N19/13 , H04N19/50 , H04N19/176
Abstract: 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
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University
Inventor： 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: H04N19/117 , H04N19/176 , H04N19/82 , H04N19/159 , H04N19/192 , H04N19/174 , H04N19/46 , H04N19/50 , H04N19/17 , H04N19/132 , H04N19/593 , H04N19/109
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20190110073A1
公开(公告)日：2019-04-11
申请号：US16206696
申请日：2018-11-30
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: 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
Abstract: 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
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University
Inventor： 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: H04N19/56 , H04N19/593 , H04N19/513 , H04N19/70 , H04N19/13 , H04N19/52
Abstract: 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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38.发明申请公开(公告)号：US20190068939A1
公开(公告)日：2019-02-28
申请号：US16070532
申请日：2017-01-19
Applicant: Electronics and Telecommunications Research Institute , Ulsan National Institute of Science and Technology
Inventor： Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Young Shin KWAK , Ye Seul BAEK , Jin Soo CHOI
IPC: H04N9/78 , H04N19/124 , H04N19/132 , H04N19/186
Abstract: There is provided a method and apparatus for converting an input video to a video format suitable for compressing, or for converting a recovered video to a video format suitable for displaying. An apparatus for converting a video signal according to an embodiment of the present invention may include: a color space conversion part converting a color space of a video signal thereby the video signal is separated into a brightness component and a color component; a transfer function application part selectively applying a transfer function to one of the brightness component and the color component; a quantization part quantizing the video signal including the brightness component and the color component to which the transfer function is selectively applied; and a sampling part sampling the quantized video signal.
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39.发明申请公开(公告)号：US20190037228A1
公开(公告)日：2019-01-31
申请号：US16134131
申请日：2018-09-18
Applicant: Electronics and Telecommunications Research Institute , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Ho KIM , Hui Yong KIM , Se Yoon JEONG , Sung Chang LIM , Ha Hyun LEE , Jin Ho LEE , Suk Hee CHO , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Mun Churl KIM , Bum Shik LEE
Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
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公开(公告)号：US20190035412A1
公开(公告)日：2019-01-31
申请号：US16081169
申请日：2017-03-21
Inventor： Seung Kwon BEACK , Tae Jin LEE , Jongmo SUNG , Mi Suk LEE , Dae Young JANG , Jin Soo CHOI
IPC: G10L19/022 , G10L19/02 , G10L19/032 , G10L19/04
Abstract: Provided is an apparatus and method for encoding/decoding audio based on a block. A method of encoding an audio signal may include dividing each of frame of input signal that constitute an audio signal into a plurality of subframes; transforming the subframes to a frequency domain; determining a two-dimensional (2D) intra block using the subframes transformed to the frequency domain; and encoding the 2D intra block. The 2D intra block may be a block that two-dimensionally displays frequency coefficients of the subframes transformed to the frequency domain using a time and a frequency.
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