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Patent Searching and Data


Title:
DATA ENCODING METHOD AND DEVICE, DATA DECODING METHOD AND DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/000334
Kind Code:
A1
Abstract:
Disclosed are a data encoding method and device, a data decoding method and device, and a storage medium. The method comprises: determining a value of a syntax element of point cloud data; when it is determined, according to the value of the syntax element, that a search range is not 0, performing prediction processing on an attribute value of a point cloud to obtain a residual of the attribute value of the point cloud; encoding the residual of the attribute value of the point cloud to obtain first code stream data, wherein the first code stream data comprises identifier information, and the identifier information is used for indicating that a residual of an attribute value of at least one point in the point cloud is 0 (S902); and when it is determined, according to the value of the syntax element, that the search range is 0, skipping the step of "performing prediction processing on an attribute value of the point cloud", and encoding the attribute value of the point cloud to obtain second code stream data, wherein the second code stream data does not comprise a first identifier (S903). By means of the method, the complexity of encoding and decoding algorithms can be reduced, thereby improving the efficiency of encoding and decoding.

Inventors:
LI, Pu (CN)
ZHENG, Xiaozhen (CN)
CHEN, Jiafeng (CN)
WANG, Wenyi (CN)
YU, Lu (CN)
Application Number:
CN2019/094764
Publication Date:
January 07, 2021
Filing Date:
July 04, 2019
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO., LTD. (CN)
ZHEJIANG UNIVERSITY (CN)
International Classes:
H04N19/169
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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