System And Method For Generating Digital Road Models From Aerial Or Satellite Images And From Data Captured By Vehicles

A method for creating a digital road model for at least one road section, comprising:

• receiving at least one trajectory of a vehicle for the at least one road section and storing the least one trajectory in a database outside the vehicle;
• receiving at least one image that shows at least parts of the at least one road section, wherein the image has a perspective that corresponds to an image recorded from an elevated position substantially vertically downward and storing the least one image in the database;
• superimposing the at least one image on the at least one trajectory such that the at least one trajectory corresponds to a course of a road in the at least one image;
• analyzing the at least one image in a corridor that extends along the trajectory and encloses the trajectory, and identifying driving-relevant or positioning-relevant features of the road section in the corridor;
• and
• generating the digital road model from the driving-relevant or positioning-relevant features identified in the at least one image, aligned on the basis of the at least one trajectory and in the corridor enclosing the trajectory.

A system for creating a digital road model for at least one road section, comprising:

• a database configured to retrievably store trajectories and images;
• a first module configured to receive at least one trajectory of a vehicle for the at least one road section and for storing the at least one trajectory in the database;
• a second module configured to receive at least one image that shows at least parts of the at least one road section, wherein the image has a perspective that corresponds to an image recorded from an elevated position substantially vertically downward, and for storing the at least one image in the database;
• a third module configured to superimpose the at least one image on the at least one trajectory such that the at least one trajectory corresponds to the course of a road in the at least one image;
• a fourth module configured to analyze the at least one image in a corridor that extends along the trajectory and encloses the trajectory, and configured to identify driving-relevant or positioning-relevant features of the road section in the corridor;
• and
• a fifth module configured to generate the digital road model from the driving-relevant or positioning-relevant features that have been identified in the at least one image, aligned on the basis of the at least one trajectory and in the corridor enclosing the trajectory.