Patent ID: 11893803
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC B  G

Claim 9:
10. A computer program embodied in a memory device, the computer program comprising programming instructions that are configured to cause a processor to:
capture, by a first camera, a first series of images of a traffic signal element of a traffic signal device over a period of time;
capture, by a second camera, a second series of images of the traffic signal element over the period of time;
in each series of images, identify one or more flashing cycles comprising a first time interval when the traffic signal element is in a first state for at least a first minimum duration and not more than a first maximum duration followed by a second time interval when the traffic signal element is in a second state for at least a second minimum duration and not more than a second maximum duration, the first state different than the second state;
compare the identified flashing cycles in each series of images to determine whether the one or more flashing cycles are consistent, wherein to compare the identified flashing cycles comprises programming instructions that are configured to cause the processor to compare intervals of time when the traffic signal element is in the first state in the first series of images to intervals of time when the traffic signal element is in the first state in the second series of images; and
in response to the one or more flashing cycles being inconsistent, classify the traffic signal element as a non-flashing light.