A lane line detection method in a complex traffic environment

A technology for lane line detection and traffic environment. It is used in instruments, character and pattern recognition, computer parts, etc. It can solve problems such as lane line wear, affecting the accuracy of lane line detection results, and lane line occlusion.

Active Publication Date: 2019-06-28
SICHUAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the changes in the number of lanes in the prior art, lane line occlusion, lane line wear, and shadows projected on the road surface, which...

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  • A lane line detection method in a complex traffic environment
  • A lane line detection method in a complex traffic environment
  • A lane line detection method in a complex traffic environment

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Embodiment Construction

[0093] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0094] The method for detecting lane markings in a complex traffic environment provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0095] The method for detecting lane lines in a complex traffic environment provided by the present invention includes the following steps in order:

[0096] Step 1: Use the back projection method to map the video sequence captured by the camera to a bird's-eye view containing road information.

[0097] In this implementation, the driving video sequence is obtained th...

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Abstract

The invention discloses a lane line detection method in a complex traffic environment. Firstly, mapping a video sequence obtained by a vehicle-mounted camera to a bird's-eye view containing road surface information; then, converting the color overhead view into a gray level image through a gradient enhancement method to achieve the purpose of increasing the contrast ratio between lane line pixelsand ground pixels; generating lane line candidate pixels by utilizing an edge extraction method; and then fitting lane lines by using an RANSC method, cutting out candidate lane line images from the overhead view for verification and semantic recognition, feeding back verified lane line parameters as geometric constraints of the RANSC, and finally estimating a vanishing point position so as to update external parameters of the vehicle-mounted camera. The method has the advantages of small influence of complex traffic environment and high detection precision.

Description

technical field [0001] The invention relates to the field of image processing target detection, in particular to a method for lane line detection in complex traffic environments. Background technique [0002] Lane lines are marking lines on the road surface that are used to guide vehicles to travel along prescribed routes and ensure the order of traffic flow. Lane line detection in the image captured by the car camera can help the computer understand the driving environment (such as the geometry of the road ahead and the lateral position of the host vehicle on the road), which is an important step in the realization of ADAS and automatic driving systems. It is also the supporting technology of the lane departure warning system and the driver intention prediction system. [0003] Like traffic signs, lane markings are designed to guide drivers to drive safely and obey traffic laws. Different forms of lane markings (solid lines, dashed lines, and yellow or white lines) repres...

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Application Information

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IPC IPC(8): G06K9/00G06K9/46
Inventor 钟羽中张建伟王茂宁李迎江李钟麒
Owner SICHUAN UNIV
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