VEHICLE VISION SYSTEM WITH TRAFFIC SIGN COMPREHENSION
First Claim
1. A vision system of a vehicle, said vision system comprising:
- a camera disposed at a vehicle and having a field of view forward of the vehicle;
wherein said camera comprises a two dimensional imaging array of a plurality of photosensing pixels;
wherein said camera is operable to capture image data;
a control comprising an image processor operable to process image data captured by said camera; and
wherein said control, responsive at least in part to processing by said image processor of captured image data, is operable to determine road signs ahead of the vehicle, and wherein said control uses a matrix algorithm for determining road signs for display of sign information to the driver of the vehicle.
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Accused Products
Abstract
A vision system of a vehicle includes a camera disposed at a vehicle and having a field of view forward of the vehicle. The camera includes a two dimensional imaging array of a plurality of photosensing pixels and is operable to capture image data. A control includes an image processor that is operable to process image data captured by the camera. The image processor, responsive at least in part to processing of captured image data, is operable to determine road signs ahead of the vehicle, and the image processor uses a matrix algorithm for determining road signs along the road and for determining road sign information for displaying to the driver of the vehicle. The road signs may include speed limit signs and the control may, responsive at least in part to a determination of weather conditions, determine the appropriate speed limit to display to the driver.
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Citations
20 Claims
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1. A vision system of a vehicle, said vision system comprising:
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a camera disposed at a vehicle and having a field of view forward of the vehicle; wherein said camera comprises a two dimensional imaging array of a plurality of photosensing pixels; wherein said camera is operable to capture image data; a control comprising an image processor operable to process image data captured by said camera; and wherein said control, responsive at least in part to processing by said image processor of captured image data, is operable to determine road signs ahead of the vehicle, and wherein said control uses a matrix algorithm for determining road signs for display of sign information to the driver of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A vision system of a vehicle, said vision system comprising:
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a camera disposed at a vehicle and having a field of view forward of the vehicle; wherein said camera comprises a two dimensional imaging array of a plurality of photosensing pixels; wherein said camera is operable to capture image data; a control comprising an image processor operable to process image data captured by said camera; wherein said control, responsive at least in part to processing by said image processor of captured image data, is operable to determine road signs ahead of the vehicle, and wherein said control uses a matrix algorithm for determining road signs for display of sign information to the driver of the vehicle; and wherein, responsive at least in part to image processing of captured image data, said control determines the presence of a first road sign and a second road sign, wherein said first road sign indicates first information that is applicable during dry road conditions and wherein said second road sign indicates second information that is applicable during wet road conditions, and wherein said control is operable to determine which of the first and second road signs is applicable to a determined current road condition and is operable to display the determined appropriate information for viewing by the driver of the vehicle. - View Dependent Claims (17, 18)
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19. A vision system of a vehicle, said vision system comprising:
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a camera disposed at a vehicle and having a field of view forward of the vehicle; wherein said camera comprises a two dimensional imaging array of a plurality of photosensing pixels; wherein said camera is operable to capture image data; a control comprising an image processor operable to process image data captured by said camera; wherein said control, responsive at least in part to processing by said image processor of captured image data, is operable to determine speed limit signs ahead of the vehicle, and wherein said control uses a matrix algorithm for determining speed limit signs for display of an appropriate speed limit to the driver of the vehicle; wherein, responsive at least in part to image processing of captured image data and responsive at least in part to a determination of a weather condition at the vehicle'"'"'s current location, said control determines the appropriate speed limit for the vehicle at the vehicle'"'"'s current location; and wherein said control generates an output for displaying the appropriate speed limit at a display screen that is viewable by the driver of the vehicle. - View Dependent Claims (20)
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Specification