Detecting a vehicle signal through image differencing and filtering

摘要

Methods and systems for detecting a vehicle signal through image differencing and filtering are described. A computing device may be configured to receive a sequence of images of an identified vehicle in a vicinity of a given vehicle. The computing device may be configured to determine, based on a comparison of a first image of a pair of images of the sequence of images to a second image of the pair of images, a portion of image data exhibiting a change in color and a change in brightness between the first image and the second image of the pair of images. The computing device may be configured to determine that the portion indicates a light signal for the identified vehicle; and provide instructions to control the given vehicle based on the light signal of the identified vehicle.

主权项

1. A method, comprising:
receiving, at a computing device, a sequence of images of an identified vehicle in a vicinity of a given vehicle, wherein the sequence of images is captured by an image-capture device coupled to the given vehicle; determining, based on a comparison of a first image of a pair of images of the sequence of images to a second image of the pair of images, a portion of image data exhibiting a change in color and a change in brightness between the first image and the second image of the pair of images; determining one or more temporal characteristics indicative of a frequency of the change in brightness of the portion in the sequence of images; determining, based on the one or more temporal characteristics, that the portion indicates a light signal for the identified vehicle; providing, by the computing device, instructions to control the given vehicle based on the light signal of the identified vehicle.