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摘要：科学研究发现人类绝大部分的信息都来自眼睛的视觉成像，图像的所含的信息很大有着其他信息媒介所不能比拟的优势，而在计算机运用越来越普遍的今天，依靠计算机及相关硬件来检测特定目标也越来越流行，图像处理也变得越来越普遍，比如说机场里通过检测人脸来排除潜在的威胁，再比如通过对高速路上所拍摄的照片来找到违章车辆。而且还在诸如资源的探测，航空航天 日常工农业生产发挥着重要的作用。人们的生活越来越来离不开图像信息的处理，而这些最最基础的部分就是要检测出自然界几个基本的几何形状，直线，圆，以及椭圆。23357
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本论文的主要研究内容有以下三点：第一是研究常用的检测图像中直线，圆，椭圆的方法，并且简单介绍了国内外研究的现状。其中以hough 变换检测直线，圆，椭圆为重点研究对象。第二是了解这些基本几何形状检测过程中出现的常见问题。第三点是研究如何利用Matlab实现相关图形的检测算法并仿真验证。
毕业论文关键词: 霍夫变换；图像检测；直线；圆；椭圆
The basic research of the image detection algorithm
Abstract: the scientific study has found that most of the information comes from the human eye visual imaging, image contains much information have advantages can't be matched by other information media, and in more and more common to use computer today, relying on the computer and related hardware to detect specific targets is becoming more and more popular, the image processing are becoming more common, for example in the airport to exclude potential threat by detecting human face, for example through the highway images to find peccancy vehicles. Detection but also in areas such as resource, aerospace daily industrial and agricultural production plays an important role. The life of people more and more to leave the image information processing, and the most basic part is to detect the nature of a few basic geometric shapes, lines, circles, and ellipses.
The main research content of this paper has the following three points: the first is the study of commonly used detection images in a straight line, circle, ellipse method, and introduced the present situation of the research at home and abroad. With hough transform to detect line,circle, ellipse as key research object. The second is to understand the basic geometry common problems appeared in the process of testing. The third point is to study how to use Matlab related graphic detection algorithm and simulation.
Key words: hough transform; Image detection; A straight line; circle; The ellipse
目 录
第1章 绪论
1.1 课题背景与研究意义1
1.1.1 课题背景1
1.1.2 课题研究意义1
1.2 国内外研究现状与水平 .1
1.2.1 发展趋势3
1.3 本文研究的主要内容3
第2章 常用的直线，圆，椭圆检测技术
2.1 直线检测技术及优缺点5
2.2 圆检测技术及优缺点5
2.3 椭圆检测技术及优缺点5
第3章 图像预处理
3.1 图像灰度化7
3.1.1 灰度图7
3.1.2 RGB图像灰度化7
3.2 图像滤波8
第4章 图像分割
4.1 图像分割原理9
4.2 图像分割的方法9
4.2.1 阈值分割.10
4.2.2 边缘检测法.11
第5章 hough变换检测基本几何形状的原理
5.1 霍夫变换检测直线原理.14
5.2 霍夫变换检测圆形原理.15 5.3 霍夫变换检测椭圆原理.15
第6章 实验结果及分析
6.1 Matlab介绍.17
6.2 基于 Matlab的仿真程序及分析17
6.2.1 程序设计流程图.17
6.2.2 检测直线程序设计.18
6.2.3 检测直线结果分析.20