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US 11,776,259 B2Granted
Control system of traffic lights and method thereof
AssigneePixord Corporation
InventorsHsun-Jung Cho, Hung-Hsun Chen, Yi-Jung Wu
Life of this patent
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Abstract
A control method for traffic lights includes: acquiring an image at a preset time point before a red light is turned off, wherein the image includes at least one vehicle waiting for the red light; determining a time length according to the image, wherein the time length is generated by an artificial intelligence algorithm; and controlling a green light according to the time length.
Claims18
A control method for traffic lights including a red light and a green light, comprising the steps of:
- A. acquiring a first image at a preset time point before the red light is turned off, wherein the first image includes vehicles stopped at the red light;
- B. preprocessing the first image to generate a second image, wherein the step B comprises classifying and labeling different types of vehicles in the first image;
- C. extracting features from the second image by an artificial intelligence algorithm to generate a feature information, and determining a position relationship between the different types of vehicles on multiple lanes in the second image based on the feature information;
- D. determining a time length by the artificial intelligence algorithm according to the determined position relationship;
- and
- E. controlling the green light according to the time length.
3 more elements
A control system for traffic lights including a red light and a green light, comprising:
- a camera, configured to capture a first image at a preset time point before the red light is turned off, wherein the first image includes vehicles on multiple lanes stopped at the red light;
- and
- an artificial intelligence device, connected to the camera in a wired or wireless manner, comprising:
- an image processing circuit connected to the camera for classifying and labeling the different types of vehicles in the first image to generate a second image;
- and
- an artificial intelligence algorithm configured to perform a set of steps comprising:
- A. extracting features from the second image to generate a feature information, and determining a position relationship between the different types of vehicles on multiple lanes in the second image based on the feature information;
- B. determining a time length for controlling the green light according to the determined position relationship;
- and
- C. controlling the green light according to the time length.
7 more elements
Dependencies are inferred from the claim text.