Updating road graphs for autonomous driving
US11853070B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Apr 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/56
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for updating data of a map. One of the methods includes storing a map of an environment, the map comprising surfels and a road graph; receiving new surfel data for the surfels; adjusting the surfels based on the new surfel data; determining a vector field difference between the surfels of the stored map and the adjusted surfels; adjusting a portion of the road graph based on the vector field difference; generating an updated map comprising the adjusted surfels and the adjusted portion of the road graph; and storing the updated map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.