公开(公告)号：US11823424B2

公开(公告)日：2023-11-21

申请号：US17722926

申请日：2022-04-18

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T9/40

CPC classification number: G06T9/40

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points of the point cloud data, generating one or more levels of detail (LODs) based on the geometry information and selecting one or more neighbor points of each point to be attribute-encoded based on the one or more LODs, encoding attribute information of each point based on the selected one or more neighbor points of each point, and transmitting the encoded geometry information, the encoded attribute information, and signaling information.

公开(公告)号：US11803986B2

公开(公告)日：2023-10-31

申请号：US17281482

申请日：2020-03-02

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T9/00 ,  G06T9/40 ,  G06T17/20

CPC classification number: G06T9/001 ,  G06T9/40 ,  G06T17/205

Abstract: Disclosed herein is a method for transmitting point cloud data, the method including encoding point cloud data, and transmitting a bitstream containing the point cloud data. Disclosed herein is a method for receiving point cloud data, the method including receiving a bitstream containing point cloud data, decoding the point cloud data, and rendering the point cloud data.

公开(公告)号：US11706397B2

公开(公告)日：2023-07-18

申请号：US17649923

申请日：2022-02-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh ,  Jangwon Lee

IPC: H04N13/133 ,  H04N13/161 ,  H04N13/178 ,  H04N13/183 ,  H04N13/282

CPC classification number: H04N13/183 ,  H04N13/133 ,  H04N13/161 ,  H04N13/178 ,  H04N13/282

Abstract: Provided is a 360-degree image data processing method performed by a 360-degree video reception apparatus. The method includes receiving 360-degree image data, obtaining information on an encoded picture and metadata from the 360-degree image data, decoding a picture based on the information on the encoded picture, rendering the decoded picture and an overlay based on the metadata, in which the metadata includes overlay related metadata, the overlay is rendered based on the overlay related metadata, the overlay related metadata includes information on an alpha plane of the overlay, and the information on the alpha plane of the overlay is included in a image item or a video track.

公开(公告)号：US11483363B2

公开(公告)日：2022-10-25

申请号：US17104612

申请日：2020-11-25

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh ,  Donggyu Sim ,  Joohyung Byeon

IPC: H04L29/06 ,  H04L65/70 ,  G06T3/40 ,  G06T9/00 ,  H04L65/75 ,  G06T9/40

Abstract: Disclosed herein are a point cloud data transmission method including encoding point cloud data, and transmitting a bitstream containing the point cloud data, and a point cloud data reception method including receiving a bitstream containing point cloud data, and decoding the point cloud data.

公开(公告)号：US11328440B2

公开(公告)日：2022-05-10

申请号：US17157198

申请日：2021-01-25

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T7/60 ,  G06T17/00

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points of the point cloud data, generating one or more LODs based on the geometry information and selecting one or more neighbor points of each point to be attribute-encoded based on the one or more LODs, wherein the selected one or more neighbor points of each point are located within a maximum neighbor point distance, encoding attribute information of each point based on the selected one or more neighbor points of each point, and transmitting the encoded geometry information, the encoded attribute information, and signaling information.

公开(公告)号：US11140380B2

公开(公告)日：2021-10-05

申请号：US16432657

申请日：2019-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Sejin Oh ,  Hyejung Hur ,  Jangwon Lee

IPC: H04N13/293 ,  H04N13/282 ,  H04N13/271 ,  H04N19/167 ,  H04N19/597

Abstract: A 360-degree image data processing method performed by a 360-degree video reception apparatus according to the present invention includes: receiving 360-degree image data; obtaining information on an encoded picture and metadata from the 360-degree image data; decoding a picture based on the information on the encoded picture; and rendering the decoded picture and an overlay based on the metadata, wherein the metadata includes group information, the group information includes group type information indicating a group including a main media and the overlay that can be rendered together, the decoded picture includes the main media, and the group information includes information indicating whether a track belonging to the group includes the main media or the overlay.

公开(公告)号：US20210104090A1

公开(公告)日：2021-04-08

申请号：US17062995

申请日：2020-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T15/00 ,  G06T19/00 ,  H04N13/161 ,  H04N13/15

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points in the point cloud data, generating Level Of Details (LODs) based on the geometry information and searching neighbor points of each point to be attribute encoded based on the generated LODs, encoding first attribute information of each point based on the searched neighbor points, encoding second attribute information of each point based on the searched neighbor points, and transmitting the encoded geometry information, the encoded first and second attribute information and signaling information.

公开(公告)号：US12250414B2

公开(公告)日：2025-03-11

申请号：US18008310

申请日：2021-06-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: H04N19/96 ,  H04N19/174 ,  H04N19/597 ,  H04N19/70

Abstract: A point cloud data processing method according to embodiments can encode and transmit point cloud data. A point cloud data processing method according to embodiments can receive and decode point cloud data.

公开(公告)号：US12149751B2

公开(公告)日：2024-11-19

申请号：US17793140

申请日：2020-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: H04N19/96 ,  G06T9/40 ,  H04N19/91

Abstract: A point cloud data processing method according to embodiments may comprise a step of encoding and transmitting point cloud data, wherein said encoding comprises encoding a geometry indicating the positions of one or more points of the point cloud data, the step of encoding a geometry further comprises a step of generating an octree of the geometry, and a step of encoding attributes of the one or more points comprises the steps of: generating Morton codes of the one or more points; and rearranging the one or more points on the basis of the octree to generate one or more levels of detail (LOD). The point cloud data processing method according to embodiments may comprise receiving and decoding point cloud data.

公开(公告)号：US11830212B2

公开(公告)日：2023-11-28

申请号：US17722846

申请日：2022-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T7/60 ,  G06T17/00

CPC classification number: G06T7/60 ,  G06T17/00 ,  G06T2207/10028

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points of the point cloud data, generating one or more LODs based on the geometry information and selecting one or more neighbor points of each point to be attribute-encoded based on the one or more LODs, wherein the selected one or more neighbor points of each point are located within a maximum neighbor point distance, encoding attribute information of each point based on the selected one or more neighbor points of each point, and transmitting the encoded geometry information, the encoded attribute information, and signaling information.