Indirect Verification of Speed Limits Based on Contextual Information For Autonomous and Semi-Autonomous Driving Systems

A system comprising at least one processor configured to:

• obtain, from a camera system of a vehicle, a direct indication of a speed limit for a road on which the vehicle is traveling;
• obtain, from at least one additional sensor of the vehicle, contextual information for the road or nearby vehicles on the road;
• determine, by a processor of the vehicle and based on the contextual information, at least one indirect indication of the speed limit for the road;
• determine, by the processor, whether the direct indication of the speed limit is consistent with the indirect indication of the speed limit;
• and
• in response to a determination that the direct indication of the speed limit is consistent with the indirect indication of the speed limit, control, by the processor, the vehicle based on the direct indication of the speed limit.

A computer-readable storage medium comprising instructions that, when executed, cause at least one processor of a system to:

• obtain, from a camera system of a vehicle, a direct indication of a speed limit for a road on which the vehicle is traveling;
• obtain, from at least one additional sensor of the vehicle, contextual information for the road or nearby vehicles on the road;
• determine, based on the contextual information, at least one indirect indication of the speed limit for the road;
• determine, by the processor, whether the direct indication of the speed limit is consistent with the indirect indication of the speed limit;
• and
• in response to a determination that the direct indication of the speed limit is consistent with the indirect indication of the speed limit, control, by the processor, the vehicle based on the direct indication of the speed limit.