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Title:
METHOD AND DEVICE FOR ENCODING AND DECODING POINT CLOUD ON THE BASIS OF TWO-DIMENSIONAL REGULARIZATION PLANAR PROJECTION
Document Type and Number:
WIPO Patent Application WO/2022/166963
Kind Code:
A1
Abstract:
Disclosed are a method and device for encoding and decoding point cloud on the basis of a two-dimensional regularization planar projection. Said encoding method comprises: acquiring original point cloud data; performing a two-dimensional regularization planar projection on the original point cloud data to obtain a two-dimensional projection planar structure; obtaining several pieces of two-dimensional image information according to the two-dimensional projection planar structure; and encoding the several pieces of two-dimensional image information to obtain code stream information. According to the present invention, a point cloud in a three-dimensional space is projected into a corresponding two-dimensional regularization projection planar structure, the point cloud is regularly corrected in both vertical and horizontal directions, and a strong correlation representation of the point cloud on the two-dimensional projection planar structure is obtained, thereby better reflecting the spatial correlation of the point cloud; so that when several pieces of two-dimensional image information are encoded subsequently, the spatial correlation of the point cloud can be greatly utilized, reducing the space redundancy, thereby further improving the encoding efficiency of the point cloud.

Inventors:
YANG FUZHENG (CN)
ZHANG WEI (CN)
Application Number:
PCT/CN2022/075397
Publication Date:
August 11, 2022
Filing Date:
February 07, 2022
Export Citation:
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Assignee:
HONOR DEVICE CO LTD (CN)
International Classes:
H04N19/46; G06T9/00; H04N19/597
Domestic Patent References:
WO2019162567A12019-08-29
WO2020187140A12020-09-24
WO2020013631A12020-01-16
Foreign References:
US20190311500A12019-10-10
CN202110172795A2021-02-08
Other References:
See also references of EP 4184917A4
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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