US Patent Issued to Huawei Technologies on July 14 for "Method and apparatus for retrieving 3D map" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,961, issued on July 14, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Method and apparatus for retrieving 3D map" was invented by Xiaoran Cao (Hangzhou, China) and Kangying Cai (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 reconstruc...