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Lane line detection method

A detection method and lane line technology are applied in the field of image processing technology and intelligent transportation, which can solve the problems of inability to guarantee the real-time performance of the system, difficulty in applying vehicles, and complex detection algorithms, so as to improve detection accuracy, robustness, and high real-time performance. , the effect of wide applicability

Active Publication Date: 2015-05-27
厦门麦克玛视电子信息技术有限公司
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Problems solved by technology

Because the environment of the road is affected by various factors such as weather, light and road conditions, it is difficult for conventional low-complexity detection algorithms to find features that adapt to environmental changes and accurately fit lane lines. Many improvements have been made, such as Chinese open patents: CN102592114A, CN104268860A and CN103473762A. The improved detection algorithm has strong anti-interference ability, high robustness and recognition accuracy, and can better fit the lane line, but the improved detection algorithm is complicated , the amount of calculation is large, the calculation time is long, the detection efficiency is slow, the real-time performance of the system cannot be guaranteed, and it is difficult to apply to high-speed vehicles

Method used

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Embodiment Construction

[0045] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0046] like figure 1 As shown, a detection method of a lane line includes the following steps:

[0047] (1) Lane line modeling to determine the detection area:

[0048] In practical applications, due to the difference in the angle of the camera erection or the change of the camera angle due to the vibration of the vehicle, the width of the captured lane line changes. If the detection is performed according to the previously set model, the wrong result will appear, so It needs to be calibrated according to the width of the lane line in the actual shooting scene of the camera before use, the specific method:

[0049] First, collect a camera image ImageColor through a CCD camera or a COMS camera;

[0050] Then, specify the distance and near lane line width L inside the image ImageColor min and L max ,like figure 2 shown. L here min and L max I...

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Abstract

The invention discloses a lane line detection method which comprises the following steps: firstly, acquiring a lane line image through a camera, and calibrating a lane line width; secondly, performing lane line modeling to obtain a detection area; thirdly, detecting edge point pairs to obtain a lane line edge point pair picture; and finally, performing least square linear fitting on the two biggest connected regions in the lane line edge point pair picture to obtain a lane line. According to the method, accurate lane line detection can be completed under a complicated background, the interference resistance is high, the calculation process is simple, the calculated quantity is small, the algorithm is quick, the real-time performance is strong, and the popularization and application values are high.

Description

technical field [0001] The invention relates to the field of image processing technology and intelligent transportation, in particular to a detection method of lane lines. Background technique [0002] With the development of the economy and the advancement of science and technology, people's living standards are getting higher and higher. When automobiles enter every household as an indispensable consumer product, safety issues also follow. In many traffic accidents, accidents due to lane departure are an important part. Therefore, research on lane departure warning systems to assist drivers to keep vehicles in lanes in monotonous driving environments has become a research focus at home and abroad. [0003] An important part of the lane departure warning system is lane line detection. The key issue of lane line detection is how to extract the features of the lane line and which model to use to fit the lane line. Because the environment of the road is affected by various f...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46
Inventor 赖明钟吴敬
Owner 厦门麦克玛视电子信息技术有限公司
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