公开(公告)号：US20210227221A1

公开(公告)日：2021-07-22

申请号：US17256150

申请日：2019-06-25

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Hui Yong KIM ,  Yung Lyul LEE ,  Myung Jun KIM ,  Nam Uk KIM ,  Ji Youn JUNG ,  Yang Woo KIM ,  Jae Gon KIM

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/119

Abstract: There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding size information of a quantization group from a bitstream, acquiring a delta quantization parameter of a current block on the basis of the size information of the quantization group, and deriving a quantization parameter for the current block on the basis of the delta quantization parameter.

公开(公告)号：US20210217229A1

公开(公告)日：2021-07-15

申请号：US17111234

申请日：2020-12-03

Applicant: Electronics and Telecommunications Research Institute ,  HANDONG GLOBAL UNIVERCITY INDUSTRY- ACADEMIC COOPERATION FOUNDATION

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Soo Woong KIM ,  Gun BANG ,  Jin Ho LEE ,  Sung Chang LIM ,  Sung Soo HWANG ,  Se Hui KANG ,  Ji Won MOON ,  Mu Hyun BACK ,  Jin Kyu LEE ,  Hyun Min HAN

IPC: G06T17/00 ,  G06T7/90 ,  G06T7/50

Abstract: The present invention relates to a plenoptic cloud generation method, the method of generating a plenoptic point cloud according to one embodiment of the present invention, the method comprises, obtaining a two-dimensional (2D) image for each view and depth information obtained from a plurality of cameras, determining a method of generating a plenoptic point cloud and generating the plenoptic point cloud by applying the determined method of generating the plenoptic point cloud to at least one of the 2D image for each view or the depth information, wherein the method of generating the plenoptic point cloud includes at least one of a simultaneous generation method of the point cloud and a sequential generation method of the point cloud.

公开(公告)号：US20210195188A1

公开(公告)日：2021-06-24

申请号：US17130614

申请日：2020-12-22

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 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

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.

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：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.