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101.
公开(公告)号:US20200053359A1
公开(公告)日:2020-02-13
申请号:US16342310
申请日:2017-10-23
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , HANBAT NATIONAL UNIVERSITY INDUSTRY- ACADEMIC COOPERATION FOUNDATION
Inventor: Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Hae Chul CHOI , Aram BACK , Jin Soo CHOI , Jae Gon KIM
IPC: H04N19/119 , H04N19/46 , H04N19/105 , H04N19/186 , H04N19/176
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.
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102.
公开(公告)号:US20200021804A1
公开(公告)日:2020-01-16
申请号:US16336243
申请日:2017-09-26
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: H04N19/11 , H04N19/593 , H04N19/176
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
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103.
公开(公告)号:US20190335185A1
公开(公告)日:2019-10-31
申请号:US16509299
申请日:2019-07-11
Inventor: Ha Hyun LEE , Jin Ho LEE , Jung Won KANG , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/31 , H04N19/157 , H04N19/463 , H04N19/172 , H04N19/70 , H04N19/184 , H04N19/51 , H04N19/187 , H04N19/44 , H04N19/105
Abstract: The present invention relates to a method for predicting an inter-layer of an image having a plurality of layers including at least one temporal sub-layer. The method according to present invention comprises the steps of: acquiring information on a temporal sub-layer for inter-layer prediction; inducing a reference picture used for predicting an inter-layer of a current picture on the basis of the information on the temporal sub-layer; and predicting the inter-layer of the current picture on the basis of the reference picture.
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104.
公开(公告)号:US20190313102A1
公开(公告)日:2019-10-10
申请号:US16461001
申请日:2017-11-28
Inventor: Seung Hyun CHO , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/129 , H04N19/91 , H04N19/18 , H04N19/159
Abstract: The present invention relates to a method for encoding and decoding an image. For this, a method for decoding an image may include: entropy-decoding a bitstream; determining a scanning unit and a scanning order of the transform coefficients of the current block; scanning and aligning the transform coefficients of the current block based on the determined scanning unit and scanning order; and performing inverse-transform for the aligned transform coefficients.
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公开(公告)号:US20190306536A1
公开(公告)日:2019-10-03
申请号:US16308208
申请日:2017-07-10
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor: Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Dong San JUN , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI , Yung Lyul LEE , Jun Woo CHOI
IPC: H04N19/91 , H04N19/44 , H04N19/176 , H04N19/159 , H04N19/149
Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.
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公开(公告)号:US20190215516A1
公开(公告)日:2019-07-11
申请号:US16302210
申请日:2017-06-23
Applicant: Electronics and Telecommunications Research Institute , Industry Academy Cooperation Foundation of Sejong University
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 , Yung Lyul LEE , Nam Uk KIM , Jun Woo CHOI
IPC: H04N19/122 , H04N19/176 , H04N19/61 , H04N19/70
CPC classification number: H04N19/122 , H04N19/103 , H04N19/107 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/90
Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
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公开(公告)号:US20190058891A1
公开(公告)日:2019-02-21
申请号:US16166712
申请日:2018-10-22
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: H04N19/30 , H04N19/33 , H04N19/11 , H04N19/176 , H04N19/503 , H04N19/187 , H04N19/36 , H04N19/103 , 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:US20180376137A1
公开(公告)日:2018-12-27
申请号:US15775420
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: H04N19/105 , H04N19/176 , H04N19/119
CPC classification number: H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/573
Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
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公开(公告)号:US20180324447A1
公开(公告)日:2018-11-08
申请号:US16039766
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:US20180213237A1
公开(公告)日:2018-07-26
申请号:US15933010
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
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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