Patent ID: 11881031
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 0:
1. A method of determining an overall state of a group of traffic signal devices, the method comprising, by a processor of a vehicle:
accessing one or more images, taken concurrently, that each depict at least a subset of a group of traffic signal devices, the images corresponding to a plurality of classes used to segregate devices of different types;
identify a plurality of states including a red state and non-red state within each of the classes in the one or more images:
generating a confidence score for each of the states within each of the classes, and
selecting, from the plurality of states, a state having a confidence score that exceeds a threshold, wherein the red state is associated with a first threshold, and the non-red state is associated with a second threshold higher than the first threshold;
using the selected state to assign an overall state to the group of traffic signal devices; and
using the overall state to generate a signal that will cause the vehicle to perform an action.