Title:
POINT CLOUD DECODING METHOD, POINT CLOUD ENCODING METHOD, DECODER, AND ENCODER
Document Type and Number:
WIPO Patent Application WO/2024/077548
Kind Code:
A1
Abstract:
Embodiments of the present application provide a point cloud decoding method, a point cloud encoding method, a decoder, and an encoder. The point cloud decoding method comprises: decoding a code stream of a point cloud, and determining a residual value of attribute information of a target point in the point cloud; on the basis of the residual value of the attribute information of the target point and a predicted value of the attribute information of the target point, determining an initial reconstruction value of the attribute information of the target point; determining a filtering coefficient of the target point; and filtering the initial reconstruction value of the attribute information of the target point on the basis of the filtering coefficient of the target point, and determining a reconstruction value of the attribute information of the target point. According to the present application, the initial reconstruction value of the attribute information of the target point is filtered by using the filtering coefficient of the target point, so that the decoding performance is improved, and the quality of a reconstructed point cloud is enhanced.
Inventors:
YUAN HUI (CN)
GUO TIAN (CN)
CHEN CHEN (CN)
LI MING (CN)
ZOU DAN (CN)
GUO TIAN (CN)
CHEN CHEN (CN)
LI MING (CN)
ZOU DAN (CN)
Application Number:
PCT/CN2022/125110
Publication Date:
April 18, 2024
Filing Date:
October 13, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04N19/593; G06T9/00
Domestic Patent References:
| WO2022067776A1 | 2022-04-07 | |||
| WO2020189876A1 | 2020-09-24 | |||
| WO2022133753A1 | 2022-06-30 | |||
| WO2022067775A1 | 2022-04-07 |
Foreign References:
| CN111242997A | 2020-06-05 | |||
| US20200021856A1 | 2020-01-16 |
Attorney, Agent or Firm:
ZHIFAN & PARTNERS (CN)
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