1 简介 研究目的:为了对医学图像进行基于小波变换的融合.方法:首先通过学习和研究小波理论的有关知识来研究小波理论在图像融合中的应用目的和实现方法,并借助MATLAB平台,通过小波
1 简介
研究目的:为了对医学图像进行基于小波变换的融合.方法:首先通过学习和研究小波理论的有关知识来研究小波理论在图像融合中的应用目的和实现方法,并借助MATLAB平台,通过小波工具箱实现了图像融合,同时比较了使用这两种方法实现图像融合的效果;然后借助MATLAB中的函数,通过编程实现了图像融合算法.结果:由两幅非同源的医学图像(CT图像和MRI图像)的融合结果可见,两种方法得到的融合图像的效果一致,其对于两幅图像中同一部位相对位置偏移量小的融合效果较好,但对偏移量较大以及存在形变情况的融合则效果不好.结论:通过小波工具箱可以实现一些简单的医学图像融合,但是随着医学图像融合技术的进一步发展和医学图像的复杂度的进一步加深,尤其是对于腹部和胸部的医学图像,则要通过非刚性配准之后才能再进行融合显像,其过程更加复杂.
2 部分代码
function varargout = main(varargin)% MAIN MATLAB code for main.fig
% MAIN, by itself, creates a new MAIN or raises the existing
% singleton*.
%
% H = MAIN returns the handle to a new MAIN or the handle to
% the existing singleton*.
%
% MAIN('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in MAIN.M with the given input arguments.
%
% MAIN('Property','Value',...) creates a new MAIN or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before main_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to main_OpeningFcn via varargin.
%
% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one
% instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES
% Edit the above text to modify the response to help main
% Last Modified by GUIDE v2.5 14-Dec-2017 19:28:26
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @main_OpeningFcn, ...
'gui_OutputFcn', @main_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
% --- Executes just before main is made visible.
function main_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% varargin command line arguments to main (see VARARGIN)
% Choose default command line output for main
handles.output = hObject;
handles.imfusion1=[];
handles.imfusion2=[];
axis(handles.axes1,'off');
axis(handles.axes2,'off');
axis(handles.axes3,'off')
movegui(handles.figure1,'center');
% Update handles structure
guidata(hObject, handles);
uiwait(handles.figure1);
% UIWAIT makes main wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = main_OutputFcn(hObject, eventdata, handles)
% varargout cell array for returning output args (see VARARGOUT);
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Get default command line output from handles structure
varargout{1} = handles.output;
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
img =handles.imfusion1;
% img = rgb2gray(img);
% img = img(20:160,140:280);
nn=10;
img=imresize(img,[58*nn 77*nn]);
% --- Executes when uipanel1 is resized.
function uipanel1_ResizeFcn(hObject, eventdata, handles)
% hObject handle to uipanel1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
3 仿真结果
4 参考文献
[1]周朋, 奚日辉, 宋玲玲,等. 基于小波变换的医学图像融合技术的实现[J]. 中国图象图形学报, 2006, 11(11):4.
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