Self-localization device and movable body
US9881379B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2016 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Jul 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A self-localization device including a storage unit that associates and stores a plurality of reference images and imaging positions of the plurality of respective reference images and an operation unit that periodically estimates a self-location of a movable body based on information obtained from a sensor included in the movable body, wherein the operation unit determines, when estimation of the self-location fails, a moving distance from a latest self-location obtained from successful estimation of the self-location before the estimation fails using the information from the sensor and extracts a plurality of the reference images belonging to a range of the moving distance from the latest self-location and searches the plurality of extracted reference images for images similar to a current image captured by an imaging device included in the movable body to estimate the self-location of the movable body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.