Construction zone sign detection
First Claim
1. A method, comprising:
- receiving, at a computing device configured to control a vehicle, from an image-capture device coupled to the vehicle, an image of a vicinity of a road on which the vehicle is travelling;
selecting, from the image, using the computing device, an image portion corresponding to a side of the road at a predetermined height;
detecting, using the computing device, a construction zone sign in the image portion;
determining, using the computing device, a type of the construction zone sign in the image portion;
detecting one or more construction zone cones or barrels on the road;
determining a number and locations of the one or more construction zone cones or barrels;
determining, based on the number and locations of the one or more construction zone cones or barrels, a severity of road changes;
modifying, using the computing device, a control strategy associated with a driving behavior of the vehicle based on (i) the type of the construction zone sign, and (ii) the severity of road changes; and
controlling, using the computing device, the vehicle based on the modified control strategy.
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Accused Products
Abstract
Methods and systems for detection of a construction zone sign are described. A computing device, configured to control the vehicle, may be configured to receive, from an image-capture device coupled to the computing device, images of a vicinity of the road on which the vehicle is travelling. Also, the computing device may be configured to determine image portions in the images that may depict sides of the road at a predetermined height range. Further, the computing device may be configured to detect a construction zone sign in the image portions, and determine a type of the construction zone sign. Accordingly, the computing device may be configured to modify a control strategy associated with a driving behavior of the vehicle; and control the vehicle based on the modified control strategy.
69 Citations
19 Claims
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1. A method, comprising:
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receiving, at a computing device configured to control a vehicle, from an image-capture device coupled to the vehicle, an image of a vicinity of a road on which the vehicle is travelling; selecting, from the image, using the computing device, an image portion corresponding to a side of the road at a predetermined height; detecting, using the computing device, a construction zone sign in the image portion; determining, using the computing device, a type of the construction zone sign in the image portion; detecting one or more construction zone cones or barrels on the road; determining a number and locations of the one or more construction zone cones or barrels; determining, based on the number and locations of the one or more construction zone cones or barrels, a severity of road changes; modifying, using the computing device, a control strategy associated with a driving behavior of the vehicle based on (i) the type of the construction zone sign, and (ii) the severity of road changes; and controlling, using the computing device, the vehicle based on the modified control strategy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer readable medium having stored thereon instructions executable by a computing device of a vehicle to cause the computing device to perform functions comprising:
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receiving from an image-capture device coupled to the vehicle, an image of a vicinity of a road on which the vehicle is travelling; selecting, from the image, an image portion corresponding to a side of the road at a predetermined height; detecting a construction zone sign in the image portion; determining a type of the construction zone sign in the image portion; detecting one or more construction zone cones or barrels on the road; determining a number and locations of the one or more construction zone cones or barrels; determining, based on the number and locations of the one or more construction zone cones or barrels, a severity of road changes; modifying a control strategy associated with a driving behavior of the vehicle based on (i) the type of the construction zone sign, and (ii) the severity of road changes; and controlling the vehicle based on the modified control strategy. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A control system for a vehicle, comprising:
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an image-capture device; and a computing device in communication with the image-capture device, and configured to; receive, from the image-capture device, an image of a vicinity of a road on which the vehicle is travelling; select, from the image, an image portion corresponding to a side of the road at a predetermined height; detect a construction zone sign in the image portion; determine a type of the construction zone sign in the image portion; detect one or more construction zone cones or barrels on the road; determine a number and locations of the one or more construction zone cones or barrels; determine, based on the number and locations of the one or more construction zone cones or barrels, a severity of road changes; modify a control strategy associated with a driving behavior of the vehicle based on (i) the type of the construction zone sign, and (ii) the severity of road changes; and control the vehicle based on the modified control strategy. - View Dependent Claims (17, 18, 19)
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Specification