Brake light detection
First Claim
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1. A method comprising:
- selecting a night mode or a day mode based on a pixel brightness in an image frame;
detecting an image region corresponding to a vehicle based on range sensor data when in the night mode or based on camera image data when in the day mode;
converting the range sensor data into luminosity and two-color channel (LAB) color space when in the night mode;
converting the camera image data into hue, saturation, and value (HSV) color space when in the day mode;
determining at least one region of interest within the image region corresponding to a brake light of the vehicle based on the converted range sensor data or the converted camera image data;
classifying the brake light of the vehicle as on or off based on the at least one region of interest to generate a brake light classification; and
executing a driving maneuver based on the brake light classification.
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Abstract
Systems, methods, and devices for detecting brake lights are disclosed herein. A system includes a mode component, a vehicle region component, and a classification component. The mode component is configured to select a night mode or day mode based on a pixel brightness in an image frame. The vehicle region component is configured to detect a region corresponding to a vehicle based on data from a range sensor when in a night mode or based on camera image data when in the day mode. The classification component is configured to classify a brake light of the vehicle as on or off based on image data in the region corresponding to the vehicle.
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Citations
20 Claims
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1. A method comprising:
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selecting a night mode or a day mode based on a pixel brightness in an image frame;
detecting an image region corresponding to a vehicle based on range sensor data when in the night mode or based on camera image data when in the day mode;converting the range sensor data into luminosity and two-color channel (LAB) color space when in the night mode; converting the camera image data into hue, saturation, and value (HSV) color space when in the day mode; determining at least one region of interest within the image region corresponding to a brake light of the vehicle based on the converted range sensor data or the converted camera image data; classifying the brake light of the vehicle as on or off based on the at least one region of interest to generate a brake light classification; and
executing a driving maneuver based on the brake light classification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising a processor that is programmable to execute instructions stored in non-transitory computer readable storage media, the instructions comprising:
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selecting a night mode or a day mode based on a pixel brightness in an image frame; detecting an image region corresponding to a vehicle based on range sensor data when in the night mode or based on camera image data when in the day mode; converting the range sensor data into luminosity and two-color channel (LAB) color space when in the night mode; converting the camera image data into hue, saturation, and value (HSV) color space when in the day mode; determining at least one region of interest within the image region corresponding to a brake light of the vehicle based on the converted range sensor data or the converted camera image data; classifying the brake light of the vehicle as on or off based on the at least one region of interest to generate a brake light classification; and executing a driving maneuver based on the brake light classification. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. Non-transitory computer readable storage media storing instructions that, when executed by one or more processors, cause the one or more processors to:
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select a night mode or a day mode based on a pixel brightness in an image frame; detect an image region corresponding to a vehicle based on range sensor data when in the night mode or based on camera image data when in the day mode; convert the range sensor data into luminosity and two-color channel (LAB) color space when in the night mode; convert the camera image data into hue, saturation, and value (HSV) color space when in the day mode; determine at least one region of interest within the image region corresponding to a brake light of the vehicle based on the converted range sensor data or the converted camera image data; classify the brake light of the vehicle as on or off based on the at least one region of interest to generate a brake light classification; and execute a driving maneuver based on the brake light classification. - View Dependent Claims (17, 18, 19, 20)
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Specification