Detecting and recognizing traffic signs
First Claim
1. A method identifying a traffic sign using a computerized system mounted on a moving vehicle, the system including a camera mounted on the moving vehicle, wherein the camera captures in real time a plurality of image frames of the environment in the field of view of the camera and transfers the image frames to an image processor, the method comprising the steps of:
- (a) programming the processor for performing the detecting of the traffic sign and for performing another driver assistance function;
(b) first partitioning a first portion of the image frames to the image processor for the detecting of the traffic sign and second partitioning a second portion of the image frames for said other driver assistance function; and
(c) upon detecting an image suspected to be of the traffic sign in at least one of said image frames of said first portion, tracking said image in at least one of said image frames of said second portion.
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Accused Products
Abstract
A method for detecting and identifying a traffic sign in a computerized system mounted on a moving vehicle. The system includes a camera mounted on the moving vehicle. The camera captures in real time multiple image frames of the environment in the field of view of the camera and transfers the image frames to an image processor. The processor is programmed for performing the detection of the traffic sign and for performing another driver assistance function. The image frames are partitioned into the image processor into a first portion of the image frames for the detection of the traffic sign and into a second portion of the image frames for the other driver assistance function. Upon detecting an image suspected to be of the traffic sign in at least one of said image frames of the first portion, the image is tracked in at least one of the image frames of the second portion.
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Citations
13 Claims
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1. A method identifying a traffic sign using a computerized system mounted on a moving vehicle, the system including a camera mounted on the moving vehicle, wherein the camera captures in real time a plurality of image frames of the environment in the field of view of the camera and transfers the image frames to an image processor, the method comprising the steps of:
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(a) programming the processor for performing the detecting of the traffic sign and for performing another driver assistance function; (b) first partitioning a first portion of the image frames to the image processor for the detecting of the traffic sign and second partitioning a second portion of the image frames for said other driver assistance function; and (c) upon detecting an image suspected to be of the traffic sign in at least one of said image frames of said first portion, tracking said image in at least one of said image frames of said second portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for identifying a traffic sign, using a computerized system mounted on a moving vehicle, the system including a camera mounted on the moving vehicle, wherein the camera captures in real time a plurality of image frames of the environment in the field of view of the camera and transfers the image frames to an image processor, the method comprising the steps of:
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(a) programming the processor for performing the detecting of the traffic sign and for performing another driver assistance function; (b) first partitioning a first portion of the image frames to the image processor for the detecting of the traffic sign and second partitioning a second portion of the image frames for said other driver assistance function, wherein said first partitioning includes first setting a camera parameter for the detecting of the traffic sign while capturing said image frames of said first portion, and wherein said second partitioning includes second setting said camera parameter for said other driver assistance function while capturing said image frames of said second portion; and (c) upon detecting an image suspected to be of the traffic sign in at least one of said image frames of both said first and said second portions, tracking said image in at least one of said image frames from either said first or from said second portions, whereby said tracking is performed without altering said camera parameter by the driver assistance system which performs said other driver assistance function.
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13. A method performed using a computerized system mounted on a moving vehicle, the system including a camera mounted on the moving vehicle, wherein the camera captures in real time a plurality of image frames of the environment in the field of view of the camera and transfers the image frames to an image processor, the method comprising the steps of:
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programming the image processor for detecting a traffic sign and for performing another driver assistance function; partitioning a subset of the image frames for said other driver assistance function; and upon said detecting an image suspected to be of a traffic sign in at least one of said image frames not in said subset, classifying the image selectably either as a traffic sign or not as a traffic sign by using said subset of the image frames partitioned for said other driver assistance function.
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Specification