Patent ID: 11935309
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of training a classifier to identify traffic signal states in images, the method comprising:
by a vehicle while traveling in an environment:
using a camera to capture images of the environment,
determining that a traffic signal is within a field of view of the camera, and
saving a plurality of the images to a data store along with a time of capture of each saved image; and

by a processor:
processing the saved images to identify an image that includes the traffic signal, determining the time of capture of the identified image,
receiving signal data, from a roadside unit, that indicates signal phase and timing of the traffic signal,
analyzing the signal data received to determine a state of the traffic signal at the time of capture,
labeling the identified image with a label of determined state, and
passing the identified image and the label to a classifier; and by the classifier, using the identified image and the label to train the classifier.