1 帧差法原理
火灾运动区域主要包括烟雾和火焰两个部分.基于视频图像的火灾检测中,为了提高火灾识别率,火灾区域的提取最为关键.针对火灾检测的实时性和准确性,并通过分析烟雾与火焰特征,本文提出了一种结合帧差法和区域填充来提取火灾运动区域,继后利用颜色模型区分烟雾及火焰,再根据烟雾或火焰蔓延时面积大小以及火焰闪烁特征等信息来识别,判断是否有火灾发生.通过MATLAB仿真实验表明本文方法较为准确,有效地提取出图像序列中火灾的运动区域,从而可以降低火灾监控系统误报率.
2 部分代码
function varargout = zznb(varargin)
% ZZNB MATLAB code for zznb.fig
% ZZNB, by itself, creates a new ZZNB or raises the existing
% singleton*.
%
% H = ZZNB returns the handle to a new ZZNB or the handle to
% the existing singleton*.
%
% ZZNB('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in ZZNB.M with the given input arguments.
%
% ZZNB('Property','Value',...) creates a new ZZNB or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before zznb_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to zznb_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 zznb
% Last Modified by GUIDE v2.5 06-Jun-2020 11:14:09
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @zznb_OpeningFcn, ...
'gui_OutputFcn', @zznb_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 zznb is made visible.
function zznb_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 zznb (see VARARGIN)
% Choose default command line output for zznb
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes zznb wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = zznb_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;
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (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 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
% --- 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)
obj = VideoReader(uigetfile('*.mp4','选择视频'));%输入视频位置
setappdata(0,'obj',obj);%设置全局变量
Show_Frames=read(obj,1);%显示第一帧作为封面
axes(handles.axes1);
imshow(Show_Frames);
set(handles.text16,'String','视频待识别…请稍等！');
3 运行结果
4 参考文献
[1]李金兰, & 邓兴. 基于帧差法和区域填充的火灾运动区域检测. 中国科技博览(27), 1.
部分理论引用网络文献，若有侵权联系博主删除。
5 MATLAB代码与数据下载地址
见博客主页
