Title:
POINT CLOUD ENCODING METHOD, POINT CLOUD DECODING METHOD, ENCODER, DECODER, AND COMPUTER STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/120594
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present application are a point cloud encoding method, a point cloud decoding method, an encoder, a decoder, and a computer storage medium. The point cloud encoding method comprises: an encoder determining n target neighbor points of a current point; determining a target prediction mode from k prediction modes on the basis of geometric information of the n target neighbor points; determining a prediction value of attribute information of the current point according to the target prediction mode and attribute information of the n target neighbor points; and encoding the current point according to the prediction value. The point cloud decoding method comprises: a decoder parsing a code stream, and determining mode parameters, wherein the mode parameters are used for indicating that attribute information of a current point is predicted by using a target prediction mode; if the target prediction mode is the kth mode among k prediction modes, determining n target neighbor points of the current point, and determining model parameters of a prediction model according to geometric information and attribute information of the n target neighbor points; and determining, on the basis of the model parameters and geometric information of the current point, a prediction value of the attribute information of the current point by using the prediction model.
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Inventors:
YUAN HUI (CN)
WANG XIAOHUI (CN)
WANG LU (CN)
LIU QI (CN)
WANG XIAOHUI (CN)
WANG LU (CN)
LIU QI (CN)
Application Number:
PCT/CN2020/134654
Publication Date:
June 16, 2022
Filing Date:
December 08, 2020
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04N19/103
Domestic Patent References:
| WO2020191260A1 | 2020-09-24 |
Foreign References:
| CN110996098A | 2020-04-10 | |||
| CN109889840A | 2019-06-14 | |||
| CN111145090A | 2020-05-12 | |||
| CN111242997A | 2020-06-05 | |||
| US20190311499A1 | 2019-10-10 | |||
| US20200021856A1 | 2020-01-16 |
Other References:
See also references of EP 4262201A4
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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