Lane departure warning system and method based on monocular camera

A lane departure warning and monocular camera technology, which is applied to vehicle components, registration/instruction of vehicle operation, external condition input parameters, etc., can solve the problems that the traffic management department cannot provide judgment basis, etc., to improve real-time performance and anti-interference Ability, good real-time performance, and high reliability

Inactive Publication Date: 2014-09-10
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a traffic accident occurs, it cannot provide the basis for the judgment of the traffic management department.

Method used

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  • Lane departure warning system and method based on monocular camera
  • Lane departure warning system and method based on monocular camera
  • Lane departure warning system and method based on monocular camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see figure 1 , a lane departure warning system based on a monocular camera, its features include:

[0046] The processor (2) is used to process the collected images to realize the detection of the current lane line and the analysis of the vehicle deviation state, and

[0047] The result is synthesized into the currently collected road image;

[0048] An image acquisition module (3), used for collecting road images ahead of the vehicle;

[0049] A body interaction module (4), configured to obtain a turn signal;

[0050] Violation image storage module (5), used for backing up the currently collected road image to the memory when the driver does not turn on the turn signal, so as to provide the traffic management department with an accident judgment basis when a traffic accident occurs;

[0051] The display (6) is used to display in real time the combined image of the current road image and the detection result, and indicate the direction in which the current vehicle de...

Embodiment 2

[0055] Such as figure 1 As shown, the lane departure warning system based on a monocular camera mainly includes a power supply module 1, an image acquisition module 2, an image processing and analysis module 3, a vehicle body interaction module 4, a violation image storage module 5, a display 6, an alarm 7, and a middle Result cache module8. The image acquisition module is connected to the image processing and analysis module, the vehicle body interaction module is connected to the image processing and analysis module through the vehicle body bus, the illegal image storage module is connected to the image processing and analysis module, and the display The DVI cable is connected to the image processing and analysis module, the alarm is connected to the image processing and analysis module, and the intermediate result buffer module is connected to the image processing and analysis module. The image acquisition module is a digital camera, the image processing and analysis modul...

Embodiment 3

[0066] This lane departure warning method based on a monocular camera uses the above system to operate, and the steps are as follows:

[0067] 1) Image preprocessing step: Obtain a refined road edge image based on the road image collected by the image acquisition module (3);

[0068] 2) Lane line extraction step: use the processor (2) to analyze the edge image obtained in step 1), and extract the current left and right lane line parameters;

[0069] 3) Lane line deviation decision-making step: use the processor (2) to analyze the lane line parameters obtained in step 2), and determine whether the current vehicle is in a state of deviation from the current lane;

[0070]4) Lane line tracking step: use the processor (2) to analyze the lane line parameters extracted in the last 5 consecutive frames, determine the area where the current lane line may exist in the next frame image, and set the dynamic area of ​​​​interest , so that step 2) only extracts the current lane line pa...

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Abstract

The invention relates to a lane departure warning system and a method based on a monocular camera. The system comprises an image collection module, a processor, a vehicle body interaction module, a violation image storage module, a display, a warning device, a synchronous dynamic random access memory (SDRAM) and a power supply module. The system is used for collecting the information of a road and vehicle bodies in a real-time manner, when the system detects that a vehicle has a tendency to deviate from the lane, the early warning system gives out a warning voice signal and a visual signal to remind a driver to timely correct the deviation of the vehicle, and at the same time, when the system judges that the driver performs a violation operation, the system records violation information in the violation image storage module. The method comprises an express lane filtering algorithm and a candidate lane scoring method for overcoming the defects that the real time performance is poor, the method is liable to be interrupted by environment of multiple lanes, railings on two sides of the lanes, and the like when a Hough algorithm is used for detecting the lines of the lanes; according to the detected parameters of the lane lines and the information of the vehicle bodies, the system can judge whether the vehicle deviates from the lane and whether the driver has the violation operation.

Description

technical field [0001] The invention belongs to the field of automobile safety assisted driving, and mainly relates to a lane departure warning system and method based on a monocular camera. Specifically, a fast lane detection algorithm is proposed to realize the detection of the current lane line, and the current vehicle motion state is judged according to the lane line parameters detected in several consecutive frames. When it is judged that the vehicle deviates from the lane, the driver is warned and prompted. Vehicle deviation information. Background technique [0002] In recent years, with the increase in the number of vehicles and the expansion of road network construction, problems such as pollution, noise, and traffic accidents have become increasingly prominent. The safety, comfort and adaptability to the environment of automobile driving have become the topics that people pay more and more attention to. Broadly speaking, safety is the most important factor as any...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/12B60W40/06B60W50/14G07C5/06G07C5/12
CPCB60W30/12B60W50/14B60W2552/00G07C5/06G07C5/12
Inventor 徐美华蒋周龙黄舒平王涛沈华明冉峰
Owner SHANGHAI UNIV
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