The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Dec. 01, 2023
Huawei Technologies Co., Ltd., Shenzhen, CN;
Xiaoran Cao, Hangzhou, CN;
Kangying Cai, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A 3D map retrieval method is provided. The method for retrieving a 3D map includes: obtaining binary data of S 3D map descriptors; performing stage-i retrieval in the binary data of the S 3D map descriptors based on binary data of a retrieval descriptor, to obtain P 3D map descriptors through screening; performing stage-m decompression on compressed data of the P 3D map descriptors to obtain reconstructed data of the P 3D map descriptors; and performing stage-j retrieval in the reconstructed data of the P 3D map descriptors based on partial data or all data of the retrieval descriptor, to obtain Q 3D map descriptors.