基于HOUGH变换的圆检测

JIMI

论文编号ZXX402  论文字数:10753,页数:25
摘要
 我们知道，圆是一个简单的几何图形，是构成图像的一个基本要素。因此，在数字图像处理技术不断发展的今天，能够快速，准确地对圆进行检测，在图像处理特别是工业图像处理中显得尤为重要。本文所要研究的是基于HOUGH变换的圆检测，即通过HOUGH变换提取出被检测圆的一些特征值，如圆的半径及圆心所在的坐标。
 总结了圆检测的常用方法。提出了一种改进的Hough变换用于圆检测，该方法先对图像进行预处理，然后进行变换。结果表明，使用我们提出的算法仍能基本保留传统HOUGH变换的优点，并且对图像场景中的干扰不敏感,在圆周残缺不全的情况下仍能进行正确检测。
 
关键字： 图像处理 圆检测 HOUGH变换
Abstract
 We know that circle is a simple sketch, and also is an essential element that constitutes the picture. Therefore, being able to detect the circle accurately and quickly seems to be very importance in picture processing, especially in the industry picture processing. What is studied in this text is based on the detection of the Hough shift of circle, namely some round characteristic value will be drawn though the Hough transformation, like the round radius and the center of a circle.
  Summarized the circle examination commonly used method. Proposed an improved Hough Transformation used in the round inspection. This method of image preprocesses and then transforms. The result expresses that the method that we used can still reserve the advantage of the traditional transformation of HOUGH, and is not sensitive to the interference in the picture, still can carry on the right detection when the circumference is incomplete.
 Keywords:   picture processing, detection of circle, HOUGH transformation
  
目录
摘要 I
ABSTRACT II
第一章  绪论 1
1.1研究意义 1
1.2 研究现状 1
1.3 文本组织 2
第二章  数字图像处理概述 3
2.1 数字图像处理的概念 3
2.2 数字图像处理的技术与应用 3
2.3 数字图像的前景及展望 4
本章小结 4
第三章  系统开发工具介绍 6
3.1 Visual C++ 6.0 介绍 6
3.2 MFC类库介绍 6
3.3 Visual C++ 6.0的优点 9
3.4 Visual C++ 6.0不足 10
本章小结 10
第四章  基于HOUGH变换的圆检测 11
4.1研究意义 11
4.2基于HOUGH变换的圆检测 11
4.3基于HOUGH变换的圆检测的算法实现 11
4.3.1预处理 11
4.3.2 HOUGH变换 13
4.3.3 流程图 15
4.4 对结果的分析 15
4.5 HOUGH变换的应用 16
本章小结 17
第五章 不足与展望 18
5.1 目前存在的不足 18
5.2 对未来的展望 18
致谢 20
参考文献 21