A method includes accessing information stored for positions along a road and using the accessed information to identify an expected trajectory for a vehicle. Position information for the vehicle is received from a global positioning system for two different time points and is used to determine a trajectory of the vehicle. The trajectory of the vehicle and the expected trajectory are used to determine a lateral offset of the vehicle from the expected trajectory and the lateral offset is used to determine when to issue a lane departure warning for the vehicle.
Real-time lane departure detection using map shape points and trajectory histories
2022-05-03
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS |
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