High resolution tracking of mobile assets
US6920391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2002 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Sep 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/05
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for describing local area geo-reference features and landmarks in providing high resolution asset location information. Geo-image data is integrated to a mapping application and geo-reference data to add more detailed scale levels to the map. The geo-image data includes geo-images and its features to provide more detailed references to the asset and support the larger references of the geo-reference data. To describe a geo-reference landmark, an original landmark representation is selected with a center point and a radius. The asset location points located at the original landmark representation are compiled along with the asset location points generated by events occurring at the landmark to create a point set. The point set replaces the original landmark representation when a prescribed number of points is reached. The asset location points that are within a specified distance from any of the points in the point set are added to the point set to complete the landmark representation. The geo-image data and landmark representation data are combined to provide high resolution asset location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.