Information processing method and device
US10075695B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Feb 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information processing method and device are disclosed. The information processing method is applied to an information processing device in which a 3D map and a spatial topological structure management-based feature library created in advance for a certain environment are contained, and different users in the certain environment can determine their location. The method includes acquiring a first image taken by a first user; extracting one or more first feature points in the first image to obtain first feature descriptors; obtaining 3D locations of the first feature points based on 3D location of the first user, the first image, and the feature library; determining feature descriptors to be updated based on 3D location of the first user, the 3D locations of the first feature points, the first feature descriptors corresponding to the first feature points, and existing feature descriptors in the feature library; and updating the feature library.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.