Methods and systems for map matching
US11118914B2 · kind B2 · utility
4Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Nov 15, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3844
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An advanced map matching algorithm is disclosed, which embeds the road topology inherently in a set of path candidates. Road connectivity is maintained even in special situations such as U-turns, reverse driving, and tunnels. Careful path candidate management is designed to reduce the candidate count while preserving well-matching candidates. Paths are treated and evaluated independently using multiple criteria, which makes the algorithm reliable and robust in different scenarios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.