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Patent Searching and Data


Title:
DATA ENCODING METHOD, DATA DECODING METHOD, DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/062768
Kind Code:
A1
Abstract:
A data encoding method, a data decoding method, a device, and a storage medium. The data encoding method comprises: obtaining an attribute residual error of the current point cloud point (S201); binarizing the attribute residual error to obtain a binary code used for indicating a first flag bit and a binary code used for indicating a second flag bit (S202); selecting, from a context model list according to a first condition, a first context model used for encoding the binary code of the first flag bit (S203); selecting, from the context model list according to a second condition, a second context model used for encoding the binary code of the second flag bit (S204), wherein when the first context model and the second context model correspond to the same index in the context model list, the first condition is different from the second condition; using the second context model to encode the binary code of the second flag bit (S205); and using the first context model to encode the binary code of the first flag bit (S206). The present invention improves the encoding efficiency without increasing additional complexity.

Inventors:
YU, Lu (Yuhangtang Road Xihu District,,Hangzho, Zhejiang 8, CN)
CHEN, Jiafeng (Yuhangtang Road Xihu District,,Hangzho, Zhejiang 8, CN)
WANG, Wenyi (Yuhangtang Road Xihu District,,Hangzho, Zhejiang 8, CN)
LI, Pu (No.9 Yuexing 1st Rd Hi-tech Park , Nanshan District,,Shenzhe, Guangdong 7, CN)
ZHENG, Xiaozhen (No.9 Yuexing 1st Rd Hi-tech Park , Nanshan District,,Shenzhe, Guangdong 7, CN)
Application Number:
CN2019/109691
Publication Date:
April 08, 2021
Filing Date:
September 30, 2019
Export Citation:
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Assignee:
ZHEJIANG UNIVERSITY (Yuhangtang Road Xihu District,,Hangzho, Zhejiang 8, CN)
SZ DJI TECHNOLOGY CO., LTD. (No.9 Yuexing 1st Rd Hi-tech Park , Nanshan District,,Shenzhe, Guangdong 7, CN)
International Classes:
H03M7/30
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (Huihua Commercial & Trade BuildingNo.80, XianLie Zhong Road, Yuexiu District,Guangzho, Guangdong 0, CN)
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