Method for operating an assistance system of a motor vehicle and assistance system
First Claim
Patent Images
1. A method for operating an assistance system of a motor vehicle comprisingdetecting an image with a camera of the assistance system;
- determining a traffic sign within the detected image;
determining an alignment of the determined traffic sign with respect to the motor vehicle, wherein the alignment indicates an angle formed between a straight line parallel to a longitudinal direction of the motor vehicle and a plane parallel to the traffic sign, andtriggering a signal device of the assistance system as a function of the alignment, wherein the signal device is triggered if the alignment of the traffic sign with respect to the motor vehicle is within a determined angular range;
wherein alignment of the determined traffic sign is determined by dividing an image of a traffic sign within a detected image, into a number of areas and, assigning a particular value to each area depending on at least one of;
a brightness and a color of an area,wherein a gradient line extends between two of said areas that differ from each other by a determined value and that are above a predetermined threshold, the gradient line representing an edge and thus an angle of the traffic sign relative to the straight line parallel to the longitudinal direction of the motor vehicle.
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Abstract
The invention relates to a method for operating an assistance system of a motor vehicle. An image is detected by means of a camera of the assistance system and a traffic sign is determined within the detected image. An alignment of the determined traffic sign is determined with respect to the motor vehicle, and a signal device of the assistance system is triggered by the alignment.
7 Citations
18 Claims
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1. A method for operating an assistance system of a motor vehicle comprising
detecting an image with a camera of the assistance system; -
determining a traffic sign within the detected image; determining an alignment of the determined traffic sign with respect to the motor vehicle, wherein the alignment indicates an angle formed between a straight line parallel to a longitudinal direction of the motor vehicle and a plane parallel to the traffic sign, and triggering a signal device of the assistance system as a function of the alignment, wherein the signal device is triggered if the alignment of the traffic sign with respect to the motor vehicle is within a determined angular range; wherein alignment of the determined traffic sign is determined by dividing an image of a traffic sign within a detected image, into a number of areas and, assigning a particular value to each area depending on at least one of;
a brightness and a color of an area,wherein a gradient line extends between two of said areas that differ from each other by a determined value and that are above a predetermined threshold, the gradient line representing an edge and thus an angle of the traffic sign relative to the straight line parallel to the longitudinal direction of the motor vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An assistance system of a motor vehicle comprising:
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a camera for the vehicle, which detects an image;
a signal device; andelectronic control unit with instructions for; determining a traffic sign within the detected image; determining an alignment of the determined traffic sign with respect to the motor vehicle, wherein the alignment indicates an angle formed between a straight line parallel to a longitudinal direction of the motor vehicle and a plane parallel to the traffic sign, and triggering the signal device of the assistance system as a function of the alignment, wherein the signal device is triggered if the alignment of the traffic sign with respect to the motor vehicle is within a determined angular range; wherein alignment of the determined traffic sign is determined by the electronic control unit dividing an image of a traffic sign within a detected image, into a number of areas and, assigning a particular value to each area depending on at least one of;
a brightness and a color of an area; andwherein the electronic control unit determines that a gradient line extends between two of said areas that differ from each other by a determined value and that are above a predetermined threshold, the gradient line representing an edge and thus an angle of the traffic sign relative to the straight line parallel to the longitudinal direction of the motor vehicle. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification