Systems and methods for generating, updating and enhancing large-scale high-precision 3D road maps and multi-level road graphs
US11725962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2019 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3848
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods involving obtaining point cloud data from one or more sources corresponding to one or more zones within a real-world space, the point cloud data representing surface features of structures detected within the one or more zones; defining a plurality of first-level nodes based on the point cloud data, individual first-level nodes corresponding to obtained point cloud data corresponding to individual zones of the one or more zones; identifying connections between two or more first-level nodes, the connections between the two or more first-level nodes based on connections between the point cloud data for the zones corresponding to the two or more first-level nodes; and defining a plurality of second-level nodes, individual second-level nodes corresponding to aggregated subsets of first-level nodes for which connections are identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.