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Title:
POINT CLOUD DATA TRANSMISSION DEVICE, POINT CLOUD DATA TRANSMISSION METHOD, POINT CLOUD DATA RECEPTION DEVICE, AND POINT CLOUD DATA RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/242064
Kind Code:
A1
Abstract:
A point cloud data transmission method according to embodiments may comprise the steps of: acquiring point cloud data; encoding, by application of a geometry tree, geometry information including positions of points of the point cloud data; encoding attribute information including attribute values of the points of the point cloud data on the basis of the geometry tree; and transmitting the encoded geometry information, the encoded attribute information, and signaling information, wherein the step of encoding the attribute information comprises: a step of generating level of details (LoDs) on the basis of the geometry tree and a step of compressing the attribute information on the basis of the LoDs.

Inventors:
OH HYUNMOOK (KR)
OH SEJIN (KR)
Application Number:
PCT/KR2021/006726
Publication Date:
December 02, 2021
Filing Date:
May 31, 2021
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/119; G06T9/40; H04N19/597; H04N19/70; H04N19/96
Domestic Patent References:
WO2020072665A12020-04-09
Foreign References:
US20200021856A12020-01-16
US20200105025A12020-04-02
Other References:
D. FLYNN (APPLE), K. MAMMOU (APPLE): "G-PCC: Combined octree-predictive geometry coding", 129. MPEG MEETING; 20200113 - 20200117; BRUSSELS; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 11 January 2020 (2020-01-11), XP030225211
MAMMOU, Khaled et al. G-PCC codec description v2. INTERNATIONAL ORGANISATION FOR STANDARDISATION ISO/IEC JTC1/SC29/WG11 N18189. January 2019 [Retrieved on 31 August 2021]. Retrieved from .
Attorney, Agent or Firm:
KBK & ASSOCIATES (KR)
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