MAP CONSTRUCTION METHOD AND APPARATUS, REPOSITIONING METHOD AND APPARATUS, STORAGE MEDIUM, AND ELECTRONIC DEVICE

摘要

Provided are a map construction method, a repositioning method, a map construction apparatus, a repositioning apparatus, a computer-readable storage medium, and an electronic device, which relate to the technical field of augmented reality. The map construction method comprises: acquiring a target key frame, performing feature extraction on the target key frame to obtain feature point information of the target key frame, and determining semantic information corresponding to the feature point information of the target key frame (S32); acquiring feature point information of a key frame previous to the target key frame and corresponding semantic information (S34); determining feature matching results of semantic information matching and feature point information matching between the target key frame and the previous key frame (S36); and according to the feature matching results, generating local map point information, so as to construct a map in view of the local map point information (S38). According to the methods and apparatuses, the precision of feature matching in an augmented reality scheme can be improved, thereby improving the accuracy of map construction and repositioning processes.