Patent · US Active

Methods, apparatuses, systems, and storage media for storing and loading visual localization maps

US11307049B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

UISEE TECHNOLOGIES (BEIJING) LTD · CN

Inventors

Wei Feng · Beijing, CN
Wei Lin · Taipei, TW
Dan Zhang · San Diego, US
Xin ZHOU · Beijing, CN

Key dates

Filing date	Jul 19, 2018
Grant date	Apr 19, 2022
Priority date	—
Expiry date	Jul 19, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F18/23
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present disclosure provides methods, apparatuses, and storage media for storing and loading visual localization maps. The methods for storing the visual localization maps may include acquiring a visual localization map; extracting key frame abstract information of each key frame from the visual localization map; grouping the key frame abstract information of all key frames of the visual localization map; for each group, generating and storing a sub-map-file of the group using the key frame abstract information of the group; generating key frame space index information based on the key frame abstract information of all groups; and generating and storing a master map file according to the key frame space index information for indexing the sub-map-file.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.