Vehicular imaging system and method for determining roadway width
First Claim
Patent Images
1. A vehicular imaging system for determining roadway width comprising:
- an image sensor configured for capturing images;
an image processor configured for receiving captured images;
wherein the image sensor configured to view forward of a vehicle, such that a field of view of the image sensor includes the roadway and roadway marker signs on both the right side and left side of the roadway;
wherein the image processor is configured to determine roadway width by identifying roadway marker signs in processed images that are captured by the image sensor and determine a distance from the roadway marker signs;
wherein the processor is further configured to use the road width for controlling a driver assist function on the vehicle;
wherein the driver assist function is at least one of a headlamp control function, a traffic sign recognition (TSR) function, and a lane departure warning (LDW) function; and
wherein the image processor is one of an application specific integrated circuit (ASIC) and a field programmable gate array (FPGA).
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Abstract
A vehicular imaging system for determining roadway width includes an image sensor for capturing images and an image processor for receiving the captured images. The image processor determines roadway width by identifying roadway marker signs and oncoming traffic in processed images captured by the image sensor and determining the number of lanes, vehicle location on the roadway based on the roadway size and/or width and location of oncoming traffic.
40 Citations
13 Claims
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1. A vehicular imaging system for determining roadway width comprising:
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an image sensor configured for capturing images; an image processor configured for receiving captured images; wherein the image sensor configured to view forward of a vehicle, such that a field of view of the image sensor includes the roadway and roadway marker signs on both the right side and left side of the roadway; wherein the image processor is configured to determine roadway width by identifying roadway marker signs in processed images that are captured by the image sensor and determine a distance from the roadway marker signs; wherein the processor is further configured to use the road width for controlling a driver assist function on the vehicle; wherein the driver assist function is at least one of a headlamp control function, a traffic sign recognition (TSR) function, and a lane departure warning (LDW) function; and wherein the image processor is one of an application specific integrated circuit (ASIC) and a field programmable gate array (FPGA). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An optical imagining system used for identifying the width of a vehicular roadway comprising:
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at least one imager configured to capture images; at least one imaging processor configured to receive images captured from the at least one imager for identifying roadway edge signs in the captured images; wherein the at least one imager is configured to view forward of a vehicle, such that a field of view of the at least one imager includes the roadway and roadway marker signs on both the right side and left side of the roadway; wherein the at least one processor is configured to determine a distance from a roadway edge sign for identifying the size and width of the roadway; wherein the processor is further configured to use the road width for controlling a driver assist function on the vehicle; wherein the driver assist function comprises a headlamp control function, a traffic sign recognition (TSR) function, and a lane departure warning (LDW) function; and wherein the image processor is a field programmable gate array (FPGA). - View Dependent Claims (10, 11, 12, 13)
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Specification