Method for obtaining precision road maps

A highly precise digital road map and method of producing same are provided for vehicle applications. The method obtains a conventional digital map having traditional segments and nodes, and represents a road network of the precision digital road map as a set of geometric shapes indexed to the tradi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WILSON CHRISTOPHER K.H
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PLANETARIA SEALS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	A highly precise digital road map and method of producing same are provided for vehicle applications. The method obtains a conventional digital map having traditional segments and nodes, and represents a road network of the precision digital road map as a set of geometric shapes indexed to the traditional segments and nodes of the conventional digital map. Branch and merge points are identified on the road network by divergences and convergences from ideal paths of the vehicles traveling thereon. These ideal paths are obtained by statistically combining the actual paths of the vehicles traveling between the same points.