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)
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:
Assignee:
HONOR DEVICE CO LTD (CN)
International Classes:
H04N19/50; G06T9/00
Domestic Patent References:
WO2020026846A1 | 2020-02-06 |
Foreign References:
US20190156520A1 | 2019-05-23 | |||
US20200107033A1 | 2020-04-02 | |||
CN111739111A | 2020-10-02 | |||
CN112153391A | 2020-12-29 | |||
CN202110172789A | 2021-02-08 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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