1 简介

针对视频监视的复杂背景,提出了一种基于帧间差分法和不变矩特征的运动目标检测与识别方法。在运动目标检测算法中,首先对定义的象素区域进行数据分析,然后通过帧间的数据差异产生运动信号,捕捉到场景中的运动目标。在目标识别方法中,首先提取运动目标区域的小变矩特征,并对其矢量进行标准化,然后利用遗传小波神经网络作为模式识别器,实现运动目标的自动识别。为验证本文方法及网络模型的泛化能力,在Matlab中对模型进行了仿真。仿真实验表明,这是一种快速有效的运动目标检测与识别方法。

2 部分代码

function varargout = MainFrame(varargin)
% MAINFRAME MATLAB code for MainFrame.fig
%     MAINFRAME, by itself, creates a new MAINFRAME or raises the existing
%     singleton*.
%
%     H = MAINFRAME returns the handle to a new MAINFRAME or the handle to
%     the existing singleton*.
%
%     MAINFRAME('CALLBACK',hObject,eventData,handles,...) calls the local
%     function named CALLBACK in MAINFRAME.M with the given input arguments.
%
%     MAINFRAME('Property','Value',...) creates a new MAINFRAME or raises the
%     existing singleton*. Starting from the left, property value pairs are
%     applied to the GUI before MainFrame_OpeningFcn gets called. An
%     unrecognized property name or invalid value makes property application
%     stop. All inputs are passed to MainFrame_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 MainFrame% Last Modified by GUIDE v2.5 30-Mar-2014 17:05:13% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...'gui_Singleton', gui_Singleton, ...'gui_OpeningFcn', @MainFrame_OpeningFcn, ...'gui_OutputFcn', @MainFrame_OutputFcn, ...'gui_LayoutFcn', [] , ...'gui_Callback',   []);
if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});
endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
elsegui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT% --- Executes just before MainFrame is made visible.
function MainFrame_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 MainFrame (see VARARGIN)% Choose default command line output for MainFrame
handles.output = hObject;
warning off all;
clc;
handles.videoFilePath = 0;
handles.videoInfo = 0;
handles.videoImgList = 0;
handles.videoStop = 1;
handles.videoTrackFlag = 0;
handles.pts = 0;
handles.tms = 0;
% Update handles structure
guidata(hObject, handles);% UIWAIT makes MainFrame wait for user response (see UIRESUME)
% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = MainFrame_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 pushbuttonPlay.
function pushbuttonPlay_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonPlay (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 播放按钮
if isequal(handles.videoFilePath, 0) || isequal(handles.videoInfo, 0)msgbox('请先获取视频信息', '提示信息');return;
end
[pathstr, name, ext] = fileparts(handles.videoFilePath);
set(handles.pushbuttonPause, 'Enable', 'On');
set(handles.pushbuttonPause, 'tag', 'pushbuttonPause', 'String', '暂停');
set(handles.sliderVideoPlay, 'Max', handles.videoInfo.NumberOfFrames, 'Min', 0, 'Value', 1);
set(handles.editSlider, 'String', sprintf('%d/%d', 0, handles.videoInfo.NumberOfFrames));
for i = 1 : handles.videoInfo.NumberOfFrameswaitfor(handles.pushbuttonPause,'tag','pushbuttonPause');I = imread(fullfile(pwd, sprintf('%s_images\\%04d.jpg', name, i)));tryimshow(I, [], 'Parent', handles.axesVideo);set(handles.sliderVideoPlay, 'Value', i);set(handles.editSlider, 'String', sprintf('%d/%d', i, handles.videoInfo.NumberOfFrames));catchreturn;enddrawnow;
end
set(handles.pushbuttonPause, 'Enable', 'Off');% --- Executes on button press in pushbuttonOpenVideoFile.
function pushbuttonOpenVideoFile_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonOpenVideoFile (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 打开视频文件按钮
videoFilePath = OpenVideoFile();
if videoFilePath == 0return;
end
set(handles.edit_videowidth, 'String', '');
set(handles.editVideoFilePath, 'String', videoFilePath);
msgbox('打开视频文件成功！', '提示信息');
handles.videoFilePath = videoFilePath;
guidata(hObject, handles);% --- Executes on button press in pushbuttonkemspgz.
function pushbuttonkemspgz_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonkemspgz (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
videoFilePath = handles.videoFilePath;
if videoFilePath == 0return;
end
% [Xpoints1, Ypoints1, Xpoints2, Ypoints2, tms, yc] = ProcessVideo(videoFilePath);
load tmp.mat
handles.pts = {[Ypoints1' Xpoints1'], [Ypoints2' Xpoints2']};
handles.tms = tms;
handles.yc = yc;% Update handles structure
guidata(hObject, handles);
msgbox('定位成功！', '提示信息');% --- Executes on button press in pushbuttonImageList.
function pushbuttonImageList_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonImageList (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 获取图像序列按钮
if isequal(handles.videoFilePath, 0) || isequal(handles.videoInfo, 0)msgbox('请先获取视频信息', '提示信息');return;
end
Video2Images(handles.videoFilePath);
% Update handles structure
guidata(hObject, handles);
msgbox('获取图像序列成功！', '提示信息');% --- Executes on button press in pushbuttonStopCheck.
function pushbuttonStopCheck_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonStopCheck (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 视频分析
if isequal(handles.pts, 0)msgbox('请先获取定位信息', '提示信息');return;
end
pts = handles.pts;
pts1 = pts{1}; pts2 = pts{2};
[pathstr, name, ext] = fileparts(handles.videoFilePath);
set(handles.pushbuttonPause, 'Enable', 'On');
set(handles.pushbuttonPause, 'tag', 'pushbuttonPause', 'String', '暂停');
set(handles.sliderVideoPlay, 'Max', handles.videoInfo.NumberOfFrames, 'Min', 0, 'Value', 1);
set(handles.editSlider, 'String', sprintf('%d/%d', 0, handles.videoInfo.NumberOfFrames));for i = 1 : min(handles.videoInfo.NumberOfFrames, size(pts1, 1))waitfor(handles.pushbuttonPause,'tag','pushbuttonPause');I = imread(fullfile(pwd, sprintf('%s_images\\%04d.jpg', name, i)));imshow(I, [], 'Parent', handles.axesVideo);set(handles.sliderVideoPlay, 'Value', i);set(handles.editSlider, 'String', sprintf('%d/%d', i, handles.videoInfo.NumberOfFrames));axes(handles.axesVideo); hold on;plot(pts1(i, 1), pts1(i, 2), 'go-', 'MarkerFaceColor', 'g');plot(pts2(i, 1), pts2(i, 2), 'bo-', 'MarkerFaceColor', 'b');hold off;drawnow;
end
set(handles.pushbuttonPause, 'Enable', 'Off');% --- Executes on button press in pushbuttonPause.
function pushbuttonPause_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonPause (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
str = get(handles.pushbuttonPause, 'tag');if strcmp(str, 'pushbuttonPause') == 1set(handles.pushbuttonPause, 'tag', 'pushbuttonContinue', 'String', '继续');pause on;
elseset(handles.pushbuttonPause, 'tag', 'pushbuttonPause', 'String', '暂停');pause off;
end
endfunction editFrameHeight_Callback(hObject, eventdata, handles)
% hObject   handle to editFrameHeight (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 editFrameHeight as text
%       str2double(get(hObject,'String')) returns contents of editFrameHeight as a double% --- Executes during object creation, after setting all properties.
function editFrameHeight_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editFrameHeight (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');
endfunction editFrameRate_Callback(hObject, eventdata, handles)
% hObject   handle to editFrameRate (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 editFrameRate as text
%       str2double(get(hObject,'String')) returns contents of editFrameRate as a double% --- Executes during object creation, after setting all properties.
function editFrameRate_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editFrameRate (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');
endfunction editVideoFilePath_Callback(hObject, eventdata, handles)
% hObject   handle to editVideoFilePath (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 editVideoFilePath as text
%       str2double(get(hObject,'String')) returns contents of editVideoFilePath as a double% --- Executes during object creation, after setting all properties.
function editVideoFilePath_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editVideoFilePath (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% --- Executes on button press in pushbuttonGetVideoInfo.
function pushbuttonGetVideoInfo_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonGetVideoInfo (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 获取视频信息按钮
if handles.videoFilePath == 0msgbox('请载入视频文件！', '提示信息');return;
end
videoInfo = VideoReader(handles.videoFilePath);
handles.videoInfo = videoInfo;
guidata(hObject, handles);
set(handles.editFrameNum, 'String', sprintf('%d', videoInfo.NumberOfFrames));
set(handles.editFrameWidth, 'String', sprintf('%d px', videoInfo.Width));
set(handles.editFrameHeight, 'String', sprintf('%d px', videoInfo.Height));
set(handles.editFrameRate, 'String', sprintf('%.1f f/s', videoInfo.FrameRate));
set(handles.editDuration, 'String', sprintf('%.1f s', videoInfo.Duration));
set(handles.editVideoFormat, 'String', sprintf('%s', videoInfo.VideoFormat));
temp = read(videoInfo, 1);
imshow(temp, [], 'Parent', handles.axesVideo);
msgbox('获取视频文件信息成功！', '提示信息');function editDuration_Callback(hObject, eventdata, handles)
% hObject   handle to editDuration (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 editDuration as text
%       str2double(get(hObject,'String')) returns contents of editDuration as a double% --- Executes during object creation, after setting all properties.
function editDuration_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editDuration (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');
endfunction editVideoFormat_Callback(hObject, eventdata, handles)
% hObject   handle to editVideoFormat (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 editVideoFormat as text
%       str2double(get(hObject,'String')) returns contents of editVideoFormat as a double% --- Executes during object creation, after setting all properties.
function editVideoFormat_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editVideoFormat (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% --- Executes on button press in pushbuttonSnap.
function pushbuttonSnap_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonSnap (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 抓图按钮响应函数
SnapImage();% --- Executes on slider movement.
function sliderVideoPlay_Callback(hObject, eventdata, handles)
% hObject   handle to sliderVideoPlay (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,'Value') returns position of slider
%       get(hObject,'Min') and get(hObject,'Max') to determine range of slider% --- Executes during object creation, after setting all properties.
function sliderVideoPlay_CreateFcn(hObject, eventdata, handles)
% hObject   handle to sliderVideoPlay (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   empty - handles not created until after all CreateFcns called% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor',[.9 .9 .9]);
endfunction editSlider_Callback(hObject, eventdata, handles)
% hObject   handle to editSlider (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 editSlider as text
%       str2double(get(hObject,'String')) returns contents of editSlider as a double% --- Executes during object creation, after setting all properties.
function editSlider_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editSlider (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');
endfunction editInfo_Callback(hObject, eventdata, handles)
% hObject   handle to editInfo (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 editInfo as text
%       str2double(get(hObject,'String')) returns contents of editInfo as a double% --- Executes during object creation, after setting all properties.
function editInfo_CreateFcn(hObject, eventdata, handles)
% hObject   handle to editInfo (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');
endfunction edit11_Callback(hObject, eventdata, handles)
% hObject   handle to edit11 (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 edit11 as text
%       str2double(get(hObject,'String')) returns contents of edit11 as a double% --- Executes during object creation, after setting all properties.
function edit11_CreateFcn(hObject, eventdata, handles)
% hObject   handle to edit11 (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% --- Executes on button press in pushbuttonExit.
function pushbuttonExit_Callback(hObject, eventdata, handles)
% hObject   handle to pushbuttonExit (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 退出系统按钮
choice = questdlg('确定要退出系统?', ...'退出', ...'确定','取消','取消');
switch choicecase '确定'close;case '取消'return;
end% --------------------------------------------------------------------
function File_Callback(hObject, eventdata, handles)
% hObject   handle to File (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)% --------------------------------------------------------------------
function Exist_Callback(hObject, eventdata, handles)
% hObject   handle to Exist (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
% 退出菜单
choice = questdlg('确定要退出系统?', ...'退出', ...'确定','取消','取消');
switch choicecase '确定'close;case '取消'return;
end% --------------------------------------------------------------------
function About_Callback(hObject, eventdata, handles)
% hObject   handle to About (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
str = '视频处理系统V1.0';
msgbox(str, '提示信息');function edit_videowidth_Callback(hObject, eventdata, handles)
% hObject   handle to edit_videowidth (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 edit_videowidth as text
%       str2double(get(hObject,'String')) returns contents of edit_videowidth as a double% --- Executes on button press in pushbutton16.
function pushbutton16_Callback(hObject, eventdata, handles)
% hObject   handle to pushbutton16 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles   structure with handles and user data (see GUIDATA)
if isequal(handles.pts, 0)msgbox('请先获取定位信息', '提示信息');return;
end
pts = handles.pts;
pts1 = pts{1}; pts2 = pts{2};
[ptsr1, ptsr2] = GetRealLocation();
t = 1 : length(pts1(:, 1));
xt1 = spline(t, pts1(:, 1), t);
yt1 = spline(t, pts1(:, 2), t);
xt2 = spline(t, pts2(:, 1), t);
yt2 = spline(t, pts2(:, 2), t);
v1 = diff(yt1)./diff(xt1); v1 = mat2gray(v1);
v2 = diff(yt2)./diff(xt2); v2 = mat2gray(v2);
axis(handles.axesVideo); cla reset; axis off; box on;
hold on;
plot(1:length(v1), v1, 'r-', 1:length(v2), v2, 'g-');
legend({'速度曲线1', '速度曲线2'}, 'Location', 'Best');
hold off;

3 仿真结果

4 参考文献

[1]肖本贤等. "基于帧间差分法和不变矩特征的运动目标检测与识别." 第27届中国控制会议 0.

**部分理论引用网络文献，若有侵权联系博主删除。**