Barrier and guardrail detection using a single camera
First Claim
1. A method for detection of a structural barrier extending along a road, the method performed by a driver assistance system mountable in a host vehicle, wherein the driver assistance system includes a camera operatively connectible to a processor, the method comprising:
- capturing a plurality of image frames in the forward field of view of the camera; and
in the image frames, processing motion of images of the structural barrier thereby detecting the structural barrier, wherein the processing includes;
hypothesizing a plurality of linear image structures as projections of the structural barrier onto a road plane; and
selecting, from the plurality of linear image structures, a linear image structure as a correct hypothesis based on the motion of images.
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Accused Products
Abstract
Driver assistance systems for detecting a structural barrier extending along a road. The driver assistance system may be mountable in a host vehicle. The camera may capture multiple image frames in the forward field of view of the camera. A processor may process motion of images of the barrier in the image frames. The camera may be a single camera. The motion of the images may be responsive to forward motion of the host vehicle and/or the motion of the images may be responsive to lateral motion of the host vehicle.
61 Citations
11 Claims
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1. A method for detection of a structural barrier extending along a road, the method performed by a driver assistance system mountable in a host vehicle, wherein the driver assistance system includes a camera operatively connectible to a processor, the method comprising:
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capturing a plurality of image frames in the forward field of view of the camera; and in the image frames, processing motion of images of the structural barrier thereby detecting the structural barrier, wherein the processing includes; hypothesizing a plurality of linear image structures as projections of the structural barrier onto a road plane; and selecting, from the plurality of linear image structures, a linear image structure as a correct hypothesis based on the motion of images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device mountable in a host vehicle for detection of a structural barrier extending along a road, the electronic device comprises:
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one or more processors; memory; a camera operatively connectible to the one or more processors; one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for; capturing a plurality of image frames in the forward field of view of the camera; and in the image frames, processing motion of images of the structural barrier thereby detecting the structural barrier, wherein the processing includes; hypothesizing a plurality of linear image structures as projections of the structural barrier onto a road plane; and selecting, from the plurality of linear image structures, a linear image structure as a correct hypothesis based on the motion of images.
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11. A non-transitory computer-readable storage medium storing one or more programs for detection of a structural barrier extending along a road, the one or more programs comprising instructions, which when executed by one or more processors of an electronic device with a camera, cause the device to:
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capturing a plurality of image frames in the forward field of view of the camera; and in the image frames, processing motion of images of the structural barrier thereby detecting the structural barrier, wherein the processing includes; hypothesizing a plurality of linear image structures as projections of the structural barrier onto a road plane; and selecting, from the plurality of linear image structures, a linear image structure as a correct hypothesis based on the motion of images.
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Specification