Method for the perspective display of a part of a topographic map, and device suitable for performing such a method
US5161886A · kind A · utility
99Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Nov 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for the perspective display of a portion of topographic coordinate information of points on the surface of the earth proximate to the current position of a vehicle travelling thereon, utilizes a coordinate transformation to generate a perspective image from an apparent point of view above and behind the vehicle in a viewing direction, which, with the direction of travel of the vehicle, defines an imaginary plane which is perpendicular to the surface of the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.