Method of generating a database for a navigation device, method of outputting a three-dimensional map, and navigation device
US9574897B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2012 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method of generating a database for use in outputting three- dimensional maps, a projection of a two-dimensional road vector onto a three-dimensional surface defined by digital terrain model data is determined. At least one three-dimensional road vector (94, 95, 98, 99) is determined based on the established projection and is stored in the database. The database is generated before it is deployed to a navigation device for use in outputting three-dimensional maps. A method of outputting three-dimensional maps and a navigation device may use the thus generated database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.