Correcting path errors for vehicle navigation
US8825373B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2012 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method are disclosed for performing loop closing on one or more paths to be optimized. The paths may include poses associated with imagery obtained by a vehicle. The apparatus may identify candidate intersections from the paths based on their proximity, and may further determine relative poses from the poses of the paths using structure-from-motion techniques. The apparatus may then apply a partitioning schema to the paths to be optimized to obtain individual partition cells. The partition cells may then be sent to one or more client devices for optimizing the paths included in the partition cells. When the apparatus receives a set of optimized paths from the client devices, the apparatus may re-partition the paths to be optimized to ensure that non-optimized portions of paths are optimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.