Method of generating a geodetic reference database product
US8958980B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 2008 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Nov 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C11/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of generating a geodetic reference database product is disclosed The method comprises acquiring mobile mapping data captured by means of digital cameras, range sensors and position determination means including GPS and IMU mounted to a vehicle driving across the earth surface, the mobile mapping data comprising simultaneously captured image data, range data and associated position data in a geographic coordinate system. Linear stationary earth surface features are derived from the mobile mapping data by processing the image data, range data and associated position data. 3D-models are generated for the linear stationary earth surface features in the geographic coordinate system from the image data, range data and associated position data and stored in a database to obtain the geodetic reference database product. A 3D-model could include an image representing the colors of the surface of the 3D model or a set of smaller images representing photo-identifiable objects along the model. The 3D-models could be used to rectify aerial imagery, to correct digital elevation models and to improve the triangulation of digital elevation models.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.