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Title:
POINT CLOUD ENCODING/DECODING METHOD AND APPARATUS BASED ON TWO-DIMENSIONAL REGULARIZATION PLANE PROJECTION
Document Type and Number:
WIPO Patent Application WO/2022/166966
Kind Code:
A1
Abstract:
Disclosed are a point cloud encoding/decoding method and apparatus based on two-dimensional regularization plane projection. The encoding method comprises: obtaining original point cloud data; performing two-dimensional regularization plane projection on the original point cloud data to obtain a two-dimensional projection plane structure; obtaining several pieces of two-dimensional map information according to the two-dimensional projection plane structure; and encoding the several pieces of two-dimensional map information to obtain code stream information. According to the present invention, a strong correlation representation of a point cloud on the two-dimensional projection plane structure is obtained by means of a two-dimensional regularization plane projection technology, so that the spatial correlation of the point cloud is better reflected, and when a placeholder information map obtained for the two-dimensional regularization projection plane structure is subsequently encoded, the spatial correlation of the point cloud can be greatly utilized, thus improving encoding efficiency of the point cloud; moreover, when the placeholder information map is encoded, blank row and blank column elements are not encoded, so that the encoding efficiency is further improved.

Inventors:
YANG FUZHENG (CN)
ZHANG WEI (CN)
DU YUXIN (CN)
SUN ZEXING (CN)
YU YOUGUANG (CN)
CHEN TIAN (CN)
ZHANG KE (CN)
Application Number:
PCT/CN2022/075407
Publication Date:
August 11, 2022
Filing Date:
February 07, 2022
Export Citation:
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Assignee:
HONOR DEVICE CO LTD (CN)
International Classes:
H04N19/50; G06T9/00
Domestic Patent References:
WO2020026846A12020-02-06
Foreign References:
US20190156520A12019-05-23
US20200107033A12020-04-02
CN111739111A2020-10-02
CN112153391A2020-12-29
CN202110172789A2021-02-08
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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