公开(公告)号：US20200336762A1

公开(公告)日：2020-10-22

申请号：US16958612

申请日：2018-12-28

Applicant: Electronics and Telecommunications Research Institute ,  CHIPS&MEDIA, INC

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Sung Chang LIM ,  Jin Ho LEE ,  Hui Yong KIM ,  Dae Yeon KIM ,  Dong Jin PARK

IPC: H04N19/55 ,  H04N19/182 ,  H04N19/563

Abstract: Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.

公开(公告)号：US20200280719A1

公开(公告)日：2020-09-03

申请号：US16877807

申请日：2020-05-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Jae Gon KIM ,  Sang Yong LEE

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/196 ,  H04N19/593 ,  H04N19/132 ,  H04N19/157 ,  H04N19/91

Abstract: The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).

公开(公告)号：US20200275092A1

公开(公告)日：2020-08-27

申请号：US15777562

申请日：2016-11-18

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Dong San JUN ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Jin Soo CHOI ,  Tae Hyun KIM ,  Dae Young LEE ,  Young Su HEO

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/147 ,  H04N19/159

Abstract: A method and apparatus use a geometric modified image for video encoding/decoding. The encoding method may include: generating a geometric modified reference picture by geometrically modifying a reference picture; generating a prediction block of a current block within an encoding target picture by performing inter prediction by referencing the reference picture or the geometrically modified reference picture; and encoding inter-prediction information of the current block.

公开(公告)号：US20200267408A1

公开(公告)日：2020-08-20

申请号：US16461388

申请日：2017-11-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/139 ,  H04N19/105 ,  H04N19/537

Abstract: The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.

公开(公告)号：US20200244968A1

公开(公告)日：2020-07-30

申请号：US16650885

申请日：2018-09-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong San JUN ,  Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Ha Hyun LEE ,  Hui Yong KIM

IPC: H04N19/147 ,  H04N19/176

Abstract: An image encoding/decoding method is disclosed. An method of decoding an image of the present invention may comprise deriving at least one merge candidate of a current block, generating an initial merge candidate list of the current block by using the derived at least one merge candidate and generating a reconfigured merge candidate list by using the initial merge candidate list.

公开(公告)号：US20200162729A1

公开(公告)日：2020-05-21

申请号：US16633340

申请日：2018-07-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHIPS&MEDIA,INC ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

Inventor： Jin Ho LEE ,  Jung Won KANG ,  Ha Hyun LEE ,  Sung Chang LIM ,  Hui Yong KIM ,  Dae Yeon KIM ,  Yung Lyul LEE

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/46 ,  H04N19/176 ,  H04N19/18

Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise acquiring transform coefficients distribution information of a neighboring block from a bitstream; direction-adaptively determining an intra prediction mode of a current block to be decoded, according to the transform coefficients distribution information of the neighboring block; and reconstructing the current block, based on the determined intra prediction mode, wherein the direction-adaptively determining includes determining similarity flag information corresponding to the neighboring block, based on the transform coefficients distribution information of the neighboring block.

公开(公告)号：US20200037003A1

公开(公告)日：2020-01-30

申请号：US16590648

申请日：2019-10-02

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Dong San JUN ,  Hui Yong KIM ,  Dong Gyu SIM ,  Seoung Jun OH ,  Jin Soo CHOI ,  Seoung Hwi KIM ,  Sea Nae PARK ,  Yong Jo AHN ,  Dong Kyu LEE

IPC: H04N19/82 ,  H04N19/30 ,  H04N19/44 ,  H04N19/70 ,  H04N19/86 ,  H04N19/196 ,  H04N19/176 ,  H04N19/117 ,  H04N19/182 ,  H04N19/186

Abstract: The present invention provides a method and apparatus for encoding/decoding an image and for adjusting a reconstructed pixel by scaling an offset of an in-loop filter having a scaled offset value. The method includes: obtaining information of a scale default value of a current block from a bitstream; obtaining offset parameter merge information of the current block from the bitstream; obtaining the offset parameter of the current block on the basis of the offset parameter merge information; determining whether a scale residual value of the current block is obtained from the bitstream on the basis of the offset parameter merge information; obtaining a scale value on the basis of the scale default value and the scale residual value; scaling an offset on the basis of the offset parameter and the scale value; and adjusting a pixel value of the current block on the basis of the scaled offset.

公开(公告)号：US20200021805A1

公开(公告)日：2020-01-16

申请号：US16471071

申请日：2018-01-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Suk KO ,  Sung Chang LIM ,  Jung Won KANG ,  Dong San JUN ,  Seung Hyun CHO ,  Jin Ho LEE ,  Ha Hyun LEE ,  Hui Yong KIM ,  Jin Soo CHOI

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/46 ,  H04N19/176

Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

公开(公告)号：US20190246103A1

公开(公告)日：2019-08-08

申请号：US16336264

申请日：2017-09-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong San JUN ,  Ha Hyun LEE ,  Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC: H04N19/109 ,  H04N19/176 ,  H04N19/182 ,  H04N19/513 ,  H04N19/91

CPC classification number: H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/513 ,  H04N19/86 ,  H04N19/91

Abstract: An image encoding method and an image decoding method are provided. The image decoding method includes deriving a temporal merge candidate from a co-located block of a current block, generating a merge candidate list of the current block based on the derived temporal merge candidate, and generating a prediction block of the current block based on the generated merge candidate list. The deriving a temporal merge candidate includes scaling a motion vector derived from the co-located block based on a POC difference value between the current block and a reference picture of the current block and a POC difference value between the co-located block and a reference picture of the co-located block, and modifying the scaled motion vector based on motion vector scaling information between a neighboring block of the current block and a co-located block of the neighboring block.

公开(公告)号：US20190238841A1

公开(公告)日：2019-08-01

申请号：US16342225

申请日：2017-10-24

Applicant: Electronics and Telecommunications Research Institute ,  Industry-University Cooperation Foundation Korea Aerospace University ,  Hanbat National University Industry-Academic Cooperation Foundation

Inventor： Jin Ho LEE ,  Sung Chang LIM ,  Jung Won KANG ,  Hyun Suk KO ,  Ha Hyun LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jae Gon KIM ,  Do Hyeon PARK ,  Jin Soo CHOI ,  Hae Chul CHOI

IPC: H04N19/11 ,  G06F17/18 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/11 ,  G06F17/18 ,  H04N19/105 ,  H04N19/117 ,  H04N19/119 ,  H04N19/13 ,  H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/513 ,  H04N19/80 ,  H04N19/91

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.