FourierMellin变换图像配准算法研究.doc

SJ006-1
CHANGZHOU INSTITUTE OF TECHNOLOGY
毕业设计说明书
题目: Fourier-Mellin变换图像配准算法研究
二级学院: 电气与光电工程学院
专业: 电子信息工程
班级: 12信Y2
学生姓名: 马俊鑫
学号: 12120615
指导教师: 吴峰
职称: 副教授
评阅教师:
职称:
2016年 5 月
摘要
图像配准技术如今在许多方面都有应用而且已经成为了不可或缺的一种技术。本文基于傅立叶梅林变换的研究,通过对图像进行平移、旋转、缩放等一系列变换对两幅或几幅待配准的图像进行配准的方法。
首先本文介绍了图像配准技术的意义、目的、研究背景及国内外发展现状。此外,还简略介绍了图像配准技术的基本原理及关键步骤。
其次讨论傅立叶变换的基本原理。研究傅立叶梅林变换的相关算法,介绍相位相关算法和频域配准算法,图像的边缘检测和提取的算法。
接着论述了与图像配准相关的傅立叶变换特性如:平移变换、旋转变换以及缩放变换等。
然后分析基于Fourier-Mellin变换的图像配准的原理以及主要技术,针对在配准的过程中配准精度降低的情况,讨论改进的方法,给出了图像配准的流程。
最后开展Fourir-Mellin变换的图像配准仿真、分析、仿真结果。给出通过高通滤波以及加窗提高图像的信噪比,提高了图像的配准精度。
关键词:傅立叶梅林;图像配准;相位相关算法;傅立叶变换
Abstract
Image registration technology has been applied in many aspects and has e an indispensable this paper, based on the research of Fourier-Mellin transform,Through the image translation, rotation, scaling, and a series of transformation of two or a few images to be registered for the registration method.
First of all, this paper introduces the significance, purpose, research background and development status of the image registration addition, the basic principles and key steps of image registration are briefly introduced.
Secondly, the basic principle of Fu Liye transform is -mellin transform correlation algorithm, introduced the phase correlation algorithm and frequency domain registration algorithm, image edge detection and extraction algorithm.
Then it discusses the characteristics of Fourier transform, such as translation transformation, rotation transformation and scaling transformation, and so on.
Then, the principle and main technology of image registration based on Fourier-Mellin transform are analyzed,In the process of registration, the registration accuracy is reduced,The improved method is discussed, and the flow of image registration is given.
Finally, the simulation, analysis and simulation results of Fourir-Mellin transform are carried signal to noise ratio of the image