1 简介
交通标志的检测与识别是智能车无人驾驶的重要组成部分,它也是解决交通安全问题的一种有效方法。在现实中由于分辨率,气象条件,照明强度和运动模糊等干扰,交通标志的图像质量通常很差,很难被检测,所以如何排除以上干扰,提高交通标志的检测和识别准确率是当前这一领域亟待解决的问题。交通标志的检测与识别问题主要包括两个部分:如何在获取的图像中准确找到交通标志,如何对提取的交通标志图片实现准确识别或分类。本文采用不变矩特征模板匹配算法实现交通标志识别。
2 部分代码
function varargout = trsUI(varargin)
% TRSUI M-file for trsUI.fig
% TRSUI, by itself, creates a new TRSUI or raises the existing
% singleton*.
%
% H = TRSUI returns the handle to a new TRSUI or the handle to
% the existing singleton*.
%
% TRSUI('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in TRSUI.M with the given input arguments.
%
% TRSUI('Property','Value',...) creates a new TRSUI or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before trsUI_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to trsUI_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 trsUI
% Last Modified by GUIDE v2.5 19-Feb-2021 15:53:44
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @trsUI_OpeningFcn, ...
'gui_OutputFcn', @trsUI_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 trsUI is made visible.
function trsUI_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 trsUI (see VARARGIN)
% Choose default command line output for trsUI
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes trsUI wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = trsUI_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;
global I1;
global mb1;
global mb2;
global x;
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
%m_file_open (hObject, eventdata, handles);
[FileName,PathName ]= uigetfile({'*.bmp';'*.png';'*.jpg';'*.*'},'Select an image');
axes(handles.axes1);%用axes命令设定当前操作的坐标轴是axes_src
fpath=[PathName FileName];%将文件名和目录名组合成一个完整的路径
%I1 = imread(FileName);
global I1;
I1 = imread(FileName);
imshow(I1);
% 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)
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
global I;
global mb1;
global mb2;
I=imread('禁止停车.bmp');
mb1=tuxiangchuli(I);
I=imread('禁止驶入.bmp');
mb2=tuxiangchuli(I);
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global I1;
global x;
x=tuxiangshibie(I1);
set(handles.xData,'string',num2str(x));
guidata(hObject, handles);
drawnow;
% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
global mb1;
global mb2;
global x;
d1=oushijuli(mb1,x);
d2=oushijuli(mb2,x);
if(d1<2)
resultData='禁止车辆临时或长时停放标志';
set(handles.mbData,'string',num2str(mb1));
%end
else if(d2<2)
resultData='禁止驶入标志';
set(handles.mbData,'string',num2str(mb2));
else
resultData='无法识别';
end
end
set(handles.result,'string',resultData);
guidata(hObject, handles);
drawnow;
% hObject handle to pushbutton4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
function edit2_Callback(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function edit3_Callback(hObject, eventdata, handles)
% hObject handle to edit3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit3 as text
% str2double(get(hObject,'String')) returns contents of edit3 as a double
% --- Executes during object creation, after setting all properties.
function edit3_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
3 仿真结果
4 参考文献
[1]韩毅, 景琳浪, 谷昭斌. 基于MATLAB的交通标志自动识别装置[J]. 2012.
部分理论引用网络文献，若有侵权联系博主删除。