公开(公告)号：US10154278B2

公开(公告)日：2018-12-11

申请号：US14650184

申请日：2013-12-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/52 ,  H04N19/593 ,  H04N19/30 ,  H04N19/187 ,  H04N19/597 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  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.

公开(公告)号：US10142648B2

公开(公告)日：2018-11-27

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: H04N19/30 ,  H04N19/503 ,  H04N19/187 ,  H04N19/33 ,  H04N19/11 ,  H04N19/176 ,  H04N19/103 ,  H04N19/36 ,  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.

公开(公告)号：US10136157B2

公开(公告)日：2018-11-20

申请号：US15706884

申请日：2017-09-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/577

Abstract: According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.

公开(公告)号：US10110912B2

公开(公告)日：2018-10-23

申请号：US15824155

申请日：2017-11-28

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

IPC: H04N19/18 ,  H04N19/44 ,  H04N19/70 ,  H04N19/46 ,  H04N19/60 ,  H04N19/593 ,  H04N19/64

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.

公开(公告)号：US10102863B2

公开(公告)日：2018-10-16

申请号：US15620119

申请日：2017-06-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Jong Mo Sung ,  Jeong Il Seo ,  Kyeong Ok Kang ,  Dae Young Jang ,  Jin Woong Kim

IPC: H04S3/00 ,  G10L19/008

Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.

公开(公告)号：US10038907B2

公开(公告)日：2018-07-31

申请号：US15814030

申请日：2017-11-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/00 ,  H04N19/159 ,  H04N19/122 ,  H04N19/436 ,  H04N19/124 ,  H04N19/176

Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.

公开(公告)号：US10027959B2

公开(公告)日：2018-07-17

申请号：US15343887

申请日：2016-11-04

Applicant: Electronics and Telecommunications Research Institute

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 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/51 ,  H04N19/61 ,  H04N19/172

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.

公开(公告)号：US10003820B2

公开(公告)日：2018-06-19

申请号：US15070155

申请日：2016-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Ho Lee ,  Hui Yong Kim ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/11 ,  H04N19/117 ,  H04N19/157 ,  H04N19/182 ,  H04N19/122 ,  H04N19/137 ,  H04N19/82 ,  H04N19/44 ,  H04N19/136 ,  H04N19/80 ,  H04N19/176 ,  H04N19/96

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.

公开(公告)号：US09924198B2

公开(公告)日：2018-03-20

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 ,  H04N7/26 ,  H04N19/577 ,  H04N19/51 ,  H04N19/70 ,  H04N19/31 ,  H04N19/105 ,  H04N19/177 ,  H04N19/184 ,  H04N19/174 ,  H04N19/172 ,  H04N19/176

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.

公开(公告)号：US09869971B2

公开(公告)日：2018-01-16

申请号：US14987287

申请日：2016-01-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun Young Chang ,  Soo Hyun Lee ,  Jin Woong Kim ,  Tae One Kim ,  Kyung Ae Moon ,  Joong Ki Park

IPC: G03H1/22 ,  G03H1/08 ,  G03H1/02

CPC classification number: G03H1/2294 ,  G03H1/0808 ,  G03H2001/0224 ,  G03H2001/2236 ,  G03H2001/2239 ,  G03H2210/30 ,  G03H2225/60

Abstract: Provided is a hologram generation method including receiving three-dimensional (3D) data information, determining a first projection position onto which the 3D data information is projected on a hologram plane corresponding to a first spatial light modulator (SLM), and a second projection position onto which the 3D data information is projected on a hologram plane corresponding to a second SLM, generating a first Fresnel zone plate (FZP) pattern corresponding to the first projection position, and determining the first FZP pattern to be an FZP pattern corresponding to the second projection position.