Enhancing basic roadway-intersection models using high intensity image data
US9081383B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2014 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jan 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/164
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Systems and methods are provided that may optimize basic models of an intersection in a roadway with high intensity image data of the intersection of the roadway. More specifically, parameters that define the basic model of the intersection in the roadway may be adjusted to more accurately define the intersection. For example, by comparing a shape of the intersection predicted by the basic model with extracted curbs and lane boundaries from elevation and intensity maps, the intersection parameters can be optimized to match real intersection-features in the environment. Once the optimal intersection parameters have been found, roadgraph features describing the intersection may be extracted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.