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Lane line detection method and system, and lane deviation early warning method and system

A lane line detection and lane line technology, applied in image analysis, instrumentation, calculation, etc., can solve problems such as large amount of calculation and system response delay, and achieve the effect of enhancing vehicle driving safety, reducing system response time, and quick warning

Active Publication Date: 2015-04-15
BYD CO LTD
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a lane line detection method for the problem of system response delay caused by the large amount of calculation in the existing lane line detection method

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  • Lane line detection method and system, and lane deviation early warning method and system
  • Lane line detection method and system, and lane deviation early warning method and system
  • Lane line detection method and system, and lane deviation early warning method and system

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Embodiment Construction

[0057] In order to make the technical problems, technical solutions, and beneficial effects solved by the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0058] Such as figure 1 As shown, an embodiment of the present invention provides a lane line detection method, including the following steps:

[0059] S1. Collect images containing the left and right lane lines of the lane where the vehicle is located;

[0060] S2, extract the target points at the edge of the lane in the above image;

[0061] S3. Perform perspective transformation on the extracted target points at the edge of the lane;

[0062] S4. Detect the straight line formed by the target points at the edge of the lane through the Hough transform to obtain the lane li...

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PUM

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Abstract

Provided is a lane line detection method, comprising the following steps: collecting a lane line image including a left lane line and a right lane line of a lane where a vehicle is located; extracting lane edge target points from the lane line image; conducting perspective transformation on the lane edge target points; and by means of the Hough transformation, detecting a straight line formed by the lane edge target points as a lane line. According to the lane line detection method of the present invention, before the Hough transformation is conducted, the perspective transformation is conducted on the extracted lane edge target points, so that the Hough transformation calculation amount can be reduced, the system reaction time can be reduced, and the travel security of vehicles can be enhanced. In addition, also provided are a lane line detection system, and a method and system for lane deviation prewarning.

Description

Technical field [0001] The invention relates to the technical field of vehicle safety assisted driving, in particular to a lane line detection method and system, and a lane departure warning method and system. Background technique [0002] With the development of society, cars have become a popular means of transportation. Due to fatigue driving or distraction, accidents caused by vehicles deviating from the lane line are also increasing, and such accidents usually occur at higher speeds, so they are more harmful. [0003] Studies have shown that if a driver is given a warning one second before a potential traffic accident occurs, most similar traffic accidents can be avoided. Therefore, real-time detection of lane lines, identification of whether the vehicle has deviated from the lane, and promptly reminding the driver when the driver does not make a lane change operation but the vehicle tends to deviate from the lane can greatly improve driving safety. [0004] There are many situ...

Claims

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Application Information

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IPC IPC(8): G06K9/40G06T7/00B60Q9/00
CPCG06V20/588
Inventor 丁赞徐波
Owner BYD CO LTD
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