公开(公告)号：US20240070890A1

公开(公告)日：2024-02-29

申请号：US18498755

申请日：2023-10-31

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.

公开(公告)号：US20240020885A1

公开(公告)日：2024-01-18

申请号：US18036644

申请日：2021-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Sooyeon LEE ,  Hansol CHOI ,  Donggyu SIM ,  Sejin OH

IPC: G06T9/00 ,  G06T7/60 ,  H04N19/597

CPC classification number: G06T9/001 ,  G06T7/60 ,  H04N19/597

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream including the point cloud data. Furthermore, a point cloud data transmission device according to embodiments may comprise: an encoder which encodes point cloud data; and a transmitter which transmits a bitstream including the point cloud data. Furthermore, a point cloud data reception method according to embodiments may comprise the steps of: receiving a bitstream including point cloud data; and decoding the point cloud data. Furthermore, a point cloud data reception device according to embodiments may comprise: a receiver which receives a bitstream including point cloud data; and a decoder which decodes the point cloud data.

公开(公告)号：US20230412837A1

公开(公告)日：2023-12-21

申请号：US18035266

申请日：2021-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook OH ,  Donggyu SIM ,  Joohyung BYEON ,  Sejin OH

IPC: H04N19/597 ,  H04N19/124 ,  H04N19/136

CPC classification number: H04N19/597 ,  H04N19/124 ,  H04N19/136

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream including the point cloud data. Further, a point cloud data transmission device according to embodiments may comprise: an encoder for encoding point cloud data; and a transmitter for transmitting a bitstream including the point cloud data. Further, a point cloud data reception method according to embodiments may comprise the steps of: receiving a bitstream including point cloud data; and decoding the point cloud data. Further, a point cloud data reception device according to embodiments may comprise: a receiver for receiving a bitstream including point cloud data; and a decoder for decoding the point cloud data.

公开(公告)号：US20230386088A1

公开(公告)日：2023-11-30

申请号：US18034310

申请日：2021-11-01

Applicant: LG Electronics Inc.

Inventor： Hyunmook OH ,  Sejin OH

IPC: G06T9/00 ,  H04N19/174 ,  H04N19/30 ,  H04N19/597 ,  H04N19/91

CPC classification number: G06T9/001 ,  H04N19/174 ,  H04N19/30 ,  H04N19/597 ,  H04N19/91

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding geometry data of point cloud data; encoding attribute data of the point cloud data on the basis of the geometry data; and transmitting the encoded geometry data, the encoded attribute data, and signaling data.

公开(公告)号：US20230328285A1

公开(公告)日：2023-10-12

申请号：US18026926

申请日：2021-09-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook OH ,  Sejin OH

IPC: H04N19/60 ,  H04N19/597 ,  H04N19/17 ,  H04N19/70

CPC classification number: H04N19/60 ,  H04N19/597 ,  H04N19/17 ,  H04N19/70 ,  H04N19/13

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream including the point cloud data. In addition, a point cloud data transmission device according to embodiments may comprise: an encoder for encoding point cloud data; and a transmitter for transmitting a bitstream including the point cloud data. In addition, a point cloud data reception method according to embodiments may comprise the steps of: receiving a bitstream including point cloud data; and decoding the point cloud data. In addition, a point cloud data reception device according to embodiments may comprise: a reception unit for receiving a bitstream including point cloud data; and a decoder for decoding the point cloud data.

公开(公告)号：US20230328270A1

公开(公告)日：2023-10-12

申请号：US18025139

申请日：2021-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Sooyeon LEE ,  Sejin OH

IPC: H04N19/52 ,  H04N19/597 ,  H04N19/119

CPC classification number: H04N19/52 ,  H04N19/597 ,  H04N19/119 ,  H04N19/124

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream containing the point cloud data. In addition, a point cloud data transmission device according to embodiments may comprise: an encoder for encoding point cloud data; and a transmitter for transmitting a bitstream containing the point cloud data.

公开(公告)号：US20230291895A1

公开(公告)日：2023-09-14

申请号：US18016771

申请日：2021-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Sooyeon LEE ,  Sejin OH ,  Donggyu SIM ,  Joohyung BYEON ,  Hansol CHOI

IPC: H04N19/107 ,  H04N19/136 ,  H04N19/105 ,  H04N19/423 ,  H04N19/13 ,  H04N19/167 ,  H04N19/597

CPC classification number: H04N19/107 ,  H04N19/136 ,  H04N19/105 ,  H04N19/423 ,  H04N19/13 ,  H04N19/167 ,  H04N19/597

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: acquiring point cloud data; encoding geometry information including the positions of points of the point cloud data by applying inter-prediction or intra-prediction; encoding attribute information including attribute values of the points of the point cloud data on the basis of the geometry information by applying the inter-prediction or intra-prediction; and transmitting the encoded geometry information, the encoded attribute information, and signaling information.

公开(公告)号：US20230281878A1

公开(公告)日：2023-09-07

申请号：US18008347

申请日：2021-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook OH ,  Sejin OH

IPC: G06T9/00 ,  G06T9/40

CPC classification number: G06T9/001 ,  G06T9/40

Abstract: A point cloud data transmission method according to embodiments may comprise the steps of: encoding point cloud data; and transmitting a bitstream comprising the point cloud data. A point cloud data reception method according to embodiments may comprise the steps of: receiving a bitstream including point cloud data; and decoding the point cloud data.

公开(公告)号：US20230103016A1

公开(公告)日：2023-03-30

申请号：US17911263

申请日：2021-02-04

Applicant: LG Electronics Inc.

Inventor： Sejin OH

IPC: G06T9/00 ,  H04L65/70

Abstract: A point cloud data transmission method, according to embodiments, may comprise the steps of: encoding point cloud data; and/or transmitting the point cloud data. A point cloud data reception method, according to embodiments, may comprise the steps of: receiving point cloud data; decoding the point cloud data; and/or rendering the point cloud data.

公开(公告)号：US20230059625A1

公开(公告)日：2023-02-23

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.