公开(公告)号：US20210092346A1

公开(公告)日：2021-03-25

申请号：US17029507

申请日：2020-09-23

Applicant: Electronics and Telecommunications Research Institute

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

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

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, the metadata may include first threshold information that becomes a criterion for distinguishing between a valid pixel and an invalid pixel in the atlas video.

公开(公告)号：US20200336724A1

公开(公告)日：2020-10-22

申请号：US16777935

申请日：2020-01-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC: H04N13/161 ,  H04N13/178 ,  H04N13/128 ,  H04N13/268

Abstract: Disclosed herein is an immersive video formatting method and apparatus for supporting motion parallax, The immersive video formatting method includes acquiring a basic video at a basic position, acquiring a multiple view video at at least one position different from the basic position, acquiring at least one residual video plus depth (RVD) video using the basic video and the multiple view video, and generating at least one of a packed video plus depth (PVD) video or predetermined metadata using the acquired basic video and the at least one RVD video.

公开(公告)号：US20250024075A1

公开(公告)日：2025-01-16

申请号：US18771269

申请日：2024-07-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Chang SHIN ,  Gwang Soon LEE

IPC: H04N19/597 ,  H04N19/182 ,  H04N19/186

Abstract: An image encoding method according to the present disclosure may include generating an atlas based on at least one two-dimensional or three-dimensional image; and encoding the atlas and metadata for the atlas. In this case, the metadata may include information about a patch packed in the atlas, and the patch information may include information about a three-dimensional point projected on a two-dimensional patch.

公开(公告)号：US20240185504A1

公开(公告)日：2024-06-06

申请号：US18488115

申请日：2023-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Chang SHIN ,  Gwang Soon LEE

IPC: G06T15/04 ,  G06F3/01 ,  G06T3/00 ,  G06T15/50

CPC classification number: G06T15/04 ,  G06F3/011 ,  G06T3/0087 ,  G06T15/506 ,  G06T2215/12

Abstract: A video encoding method according to the present disclosure includes classifying a plurality of view images into basic images and additional images, performing pruning on at least one of the plurality of view images on the basis of the classification result, generating an atlas based on the pruning results, and encoding the atlas and metadata for the atlas.

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.