公开(公告)号：US20230386090A1

公开(公告)日：2023-11-30

申请号：US18323834

申请日：2023-05-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Chang SHIN ,  Gwang Soon LEE ,  Kwan Jung OH ,  Jun Young JEONG

IPC: G06T9/00 ,  G06T9/40

CPC classification number: G06T9/001 ,  G06T9/40

Abstract: An image encoding method according to the present disclosure may include classifying a plurality of view images into a basic image and an additional image; performing pruning for at least one of the plurality of view images based on a result of the classification; generating an atlas based on a result of performing the pruning; and encoding the atlas and metadata for the atlas. In this case, the metadata may include spherical harmonic function information on a point in a three-dimensional space.

公开(公告)号：US20230222694A1

公开(公告)日：2023-07-13

申请号：US18096415

申请日：2023-01-12

Applicant: Electronics and Telecommunications Research Institute ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Kwan Jung OH ,  Gwang Soon LEE ,  Jeong Il SEO ,  Hong Chang SHIN ,  Jun Young JEONG ,  Euee Seon JANG ,  Tian Yu Dong ,  Xin Li ,  Jai Young OH

IPC: G06T9/00 ,  G06T7/194 ,  G06T7/60

CPC classification number: G06T9/00 ,  G06T7/194 ,  G06T7/60 ,  G06T2207/20132

Abstract: A method of processing an immersive video according to the present disclosure includes performing pruning for an input image, generating an atlas based on patches generated by the pruning and generating a cropped atlas by removing a background region of the atlas.

公开(公告)号：US20210385490A1

公开(公告)日：2021-12-09

申请号：US17231790

申请日：2021-04-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Chang SHIN ,  Gwang Soon LEE ,  Ho Min EUM ,  Jun Young JEONG ,  Kug Jin YUN

IPC: H04N19/597 ,  H04N19/157 ,  H04N19/14

Abstract: A video decoding method comprises receiving a plurality of atlases and metadata, unpacking patches included in the plurality of atlases based on the plurality of atlases and the metadata, reconstructing view images including an image of a basic view and images of a plurality of additional views, by unpruning the patches based on the metadata, and synthesizing an image of a target playback view based on the view images. The metadata is data related to priorities of the view images.

公开(公告)号：US20210329209A1

公开(公告)日：2021-10-21

申请号：US17233151

申请日：2021-04-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwang Soon LEE ,  Jun Young JEONG ,  Kug Jin YUN ,  Hong Chang SHIN ,  Ho Min EUM

IPC: H04N13/111 ,  H04N13/161 ,  H04N13/178

Abstract: A method of producing an immersive video comprises decoding an atlas, parsing a flag for the atlas, and producing a viewport image using the atlas. The flag may indicate whether the viewport image is capable of being completely produced through the atlas, and, according to a value of the flag, when the viewport image is produced, it may be determined whether an additional atlas is used in addition to the atlas.

公开(公告)号：US20210006831A1

公开(公告)日：2021-01-07

申请号：US16823663

申请日：2020-03-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Poznan University of Technology

Inventor： Gwang Soon LEE ,  Jun Young JEONG ,  Hong Chang SHIN ,  Kug Jin YUN ,  Marek Domanski ,  Olgierd Stankiewicz ,  Dawid Mieloch ,  Adrian Dziembowski ,  Adam Grzelka ,  Jakub Stankowski

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/167 ,  H04N13/178 ,  H04N13/161

Abstract: Disclosed herein is an image encoding/decoding method and apparatus for virtual view synthesis. The image decoding for virtual view synthesis may include decoding texture information and depth information of at least one or more basic view images and at least one or more additional view images from a bit stream and synthesizing a virtual view on the basis of the texture information and the depth information, wherein the basic view image and the additional view image comprise a non-empty region and an empty region, and wherein the synthesizing of the virtual view comprises determining the non-empty region through a specific value in the depth information and a threshold and synthesizing the virtual view by using the determined non-empty region.

公开(公告)号：US20220007000A1

公开(公告)日：2022-01-06

申请号：US17354985

申请日：2021-06-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Poznan University of Technology

Inventor： Gwang Soon LEE ,  Jun Young JEONG ,  Dawid MIELOCH ,  Adrian DZIEMBOWSKI ,  Marek DOMANSKI

IPC: H04N13/178 ,  H04N13/161 ,  H04N13/128

Abstract: An immersive video processing method according to the present invention includes: classifying view videos into a base video and an additional video; performing pruning for the view videos by referring to a result of the classification; generating an atlas based on a result of the pruning; determining a depth parameter of each view in the atlas; and encoding information indicating whether or not updating of the depth parameter is needed, based on whether or not the depth parameter of each view in the atlas is identical as in a previous atlas.

公开(公告)号：US20210099687A1

公开(公告)日：2021-04-01

申请号：US17033227

申请日：2020-09-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Chang SHIN ,  Gwang Soon LEE ,  Ho Min EUM ,  Jun Young JEONG ,  Kug Jin YUN

IPC: H04N13/178 ,  H04N19/46 ,  H04N13/156

Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for input videos; extracting patches from the input videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, the metadata may include information on a priority order of pruning among input videos.

公开(公告)号：US20210067757A1

公开(公告)日：2021-03-04

申请号：US17006389

申请日：2020-08-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kug Jin YUN ,  Jun Young JEONG ,  Gwang Soon LEE ,  Hong Chang SHIN ,  Ho Min EUM

IPC: H04N13/161 ,  H04N13/178 ,  H04N13/282 ,  G06T15/20

Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for source videos; extracting patches from the source videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, a first flag indicating whether or not an atlas includes a patch including information on an entire region of a first source video may be encoded into the metadata.

公开(公告)号：US20210006764A1

公开(公告)日：2021-01-07

申请号：US16921563

申请日：2020-07-06

Applicant: Electronics and Telecommunications Research Institute ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Hong Chang SHIN ,  Gwang Soon LEE ,  Ho Min EUM ,  Jun Young JEONG ,  Jong Il PARK ,  Jun Young YUN

IPC: H04N13/139 ,  H04N13/161 ,  H04N13/111 ,  H04N13/172

Abstract: An immersive video processing method according to the present disclosure includes determining a priority order of pruning for source view videos, generating a residual video for an additional view video based on the priority order of pruning, packing a patch generated based on the residual video into an atlas video, and encoding the atlas video.

公开(公告)号：US20240357135A1

公开(公告)日：2024-10-24

申请号：US18640930

申请日：2024-04-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwang Soon LEE ,  Jun Young JEONG ,  Adrian Dziembowski ,  Dawid Mieloch ,  Marek Domanski

IPC: H04N19/186 ,  H04N19/132 ,  H04N19/136 ,  H04N19/463

CPC classification number: H04N19/186 ,  H04N19/132 ,  H04N19/136 ,  H04N19/463

Abstract: A method of encoding video includes encoding a texture image, and encoding metadata for the texture image. A value of a chrominance sample expressed within an original dynamic range in the texture image is changed to a value within a changed dynamic range and encoded.