Lane recognition system and method using defog sensor
First Claim
Patent Images
1. A lane recognition system using a defog sensor, comprising:
- a defog sensor mounted in a defogging system of a vehicle;
an imaging unit mounted on a windshield of the vehicle so as to image the front of the vehicle; and
an integrated control unit configured to analyze a defog sensor signal received from the defog sensor, process an image signal received from the imaging unit based on the analyzed defog sensor signal, and acquire lane information,wherein the defog sensor senses the temperature of the windshield and the external temperature, andwherein when processing the image signal, the integrated control unit analyzes the defog sensor signal, and highlights edges of the image in case where a difference between the temperature of the windshield and the external temperature is less than a predetermined value.
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Abstract
Disclosed herein is a lane recognition system using a defog sensor, including: a defog sensor mounted in a defogging system of a vehicle; an imaging unit mounted on a windshield of the vehicle so as to image the front of the vehicle; and an integrated control unit configured to analyze a defog sensor signal received from the defog sensor, process an image signal received from the imaging unit based on the analyzed defog sensor signal, and acquire lane information.
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Citations
14 Claims
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1. A lane recognition system using a defog sensor, comprising:
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a defog sensor mounted in a defogging system of a vehicle; an imaging unit mounted on a windshield of the vehicle so as to image the front of the vehicle; and an integrated control unit configured to analyze a defog sensor signal received from the defog sensor, process an image signal received from the imaging unit based on the analyzed defog sensor signal, and acquire lane information, wherein the defog sensor senses the temperature of the windshield and the external temperature, and wherein when processing the image signal, the integrated control unit analyzes the defog sensor signal, and highlights edges of the image in case where a difference between the temperature of the windshield and the external temperature is less than a predetermined value. - View Dependent Claims (8, 9)
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2. A lane recognition system using a defog sensor, comprising:
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a defog sensor mounted in a defogging system of a vehicle; an imaging unit mounted on a windshield of the vehicle so as to image the front of the vehicle; and an integrated control unit configured to analyze a defog sensor signal received from the defog sensor, process an image signal received from the imaging unit based on the analyzed defog sensor signal, and acquire lane information, wherein when processing the image signal, the integrated control unit analyzes the defog sensor signal, and sets a reference vanishing point region such that only an edge corresponding to a vanishing point in a predetermined region is recognized as a lane edge, in case where a difference between the temperature of the windshield and the external temperature is less than a predetermined value. - View Dependent Claims (4, 5, 6, 7)
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3. A lane recognition system using a defog sensor, comprising:
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a defog sensor mounted in a defogging system of a vehicle; an imaging unit mounted on a windshield of the vehicle so as to image the front of the vehicle; and an integrated control unit configured to analyze a defog sensor signal received from the defog sensor, process an image signal received from the imaging unit based on the analyzed defog sensor signal, and acquire lane information, wherein when processing the image signal, the integrated control unit analyzes the defog sensor signal, and highlights edges of the image or sets a reference vanishing point region such that only an edge corresponding to a vanishing point in a predetermined region is recognized as a lane edge, in case where a difference between the temperature of the windshield and the external temperature is less than a predetermined value.
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10. A lane recognition method using a defog sensor, comprising:
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a signal reception step of receiving a defog sensor signal from a defog sensor provided in a defogging system of a vehicle, and receiving an image signal from an imaging unit which is mounted on a windshield of the vehicle so as to image the front of the vehicle; an image processing step of analyzing the defog sensor signal received at the signal reception step and processing the image signal based on the analyzed defog sensor signal; and acquiring lane information from the image processed at the image processing step, wherein the image processing step comprises; a processing reference setting step of analyzing the defog sensor signal and highlighting edges of the image or setting a reference vanishing point region when a difference between the temperature of the windshield and the external temperature is less than a predetermined reference value; an edge extraction step of extracting edges expected as lanes on the basis of the reference set at the processing reference setting step; a clustering step of clustering the edges extracted at the edge extraction step through a predetermined algorithm; and a filtering step of removing unnecessary edge groups which do not correspond to the lane information among the edge groups formed at the clustering step. - View Dependent Claims (11, 12, 13, 14)
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Specification