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基于霍夫变换的车道线偏离预警算法的设计与实现_论文.doc
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基于霍夫变换的车道线偏离预警算法的设计与实现_论文.doc
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开题时间
2015 年 3 月 5 日
答辩时间
2015 年 5 月 30 日
指导教师
鹿玉红
职 称 副教授
基于霍夫变换的车道线偏离预警算法的设计与实现
作 者: 陈勇强
指导教师: 鹿玉红
摘要 随着汽车产业的快速发展以及汽车保有量的增加,因此所带来的交通事故的发生率持续上
涨,交通安全已经严重影响了人们的日常出行。事故调查发现,由车道偏离所导致的交通事故约占
事故总量的三分之一,于是车道线偏离预警便有了设计的意义及价值。
本文主要针对车道线检测、识别及车道线偏离预警等模块进行了深刻的研究。首先,介绍了本课
题的研究背景以及意义,国内外研究现状的介绍等;第二,阐述了图片的获取方法及图像的预处理 ,
为之后的车道线提取做准备;第三,详细介绍了霍夫变换及基于该方法的车道线的检测与识别;第
四,描述了车道线偏离模型的建立。
最终,利用 MATLAB 实现了车道线偏离预警算法,用来验证本文设计的的车道线识别及偏离预
警。
关键词:车道线偏离预警; 霍夫变换;MATLAB
Design and Achievement of the Lane Line Departure Warning
Algorithm Based on Hough Transform
Author: Chen Yongqiang
Instructor: LuYuhong
Abstract With the rapid development of automobile industry and the increased car ownership,the rate
of traffic accidents is continually rising,traffic safety has influenced the daily life of people.According to
the investigation about traffic accident ,it is found that traffic accidents are caused by Lane Departure
which occupy one third of the total amount of traffic accidents.so the early warning of the Lane Line
Departure has contrivable significance and value.
This thesis does profound research to the detection and identification of the Lane Line Departure and
each module about the early warning of the Lane Line Departure.First,it introduces the research
background,significance and among domestic and overseas research current situation of this task.Second,it
states the way of obtaining picture and preprocesses picture,preparing for subsequent collection of the Lane
Line Departure.Third,it introduces the Hough Transform in detail and bases on the way of detection and
identification of the Lane Line Departure.Fourth,it describes the establishment of the Lane Line Departure
model.
At last,in order to confirming the identification of the Lane Line and Departure Warning Algorithm is
achieved through MATLAB.
Keywords:Lane Line Departure Warning;Hough Transform;MATLAB
目 录
1 引言....................................................................................................................1
1.1 研究背景及意义..........................................................................................................1
1.2 国内外技术发展状况..................................................................................................1
1.3 本文研究内容..............................................................................................................4
1.4 本章小结......................................................................................................................5
2 图像的获取及预处理........................................................................................5
2.1 概述..............................................................................................................................6
2.2 图像的获取..................................................................................................................6
2.3 图像预处理算法结构..................................................................................................8
2.4 本章小结....................................................................................................................11
3 基于霍夫变换的车道线检测与识别..............................................................12
3.1 概述...........................................................................................................................12
3.2 霍夫变换的简介.......................................................................................................12
3.3 霍夫变换....................................................................................................................13
3.4 本章小结....................................................................................................................15
4 车道线偏离预警模式建立..............................................................................16
4.1 概述............................................................................................................................16
4.2 车道偏离常用模型....................................................................................................16
4.3 车道偏离模型的选择................................................................................................17
4.4 本章小结....................................................................................................................18
结论.....................................................................................................................18
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