m基于深度学习的肉类新鲜度检测系统matlab仿真,带GUI操作界面

简介: MATLAB 2022a中使用GoogleNet模型对肉类新鲜度检测进行了仿真,展示了多个阶段的结果图像。该模型依赖Inception模块来捕捉不同尺度特征,通过堆叠的Inception模块、批量归一化和ReLU激活实现特征提取。训练目标是优化交叉熵损失函数。核心代码段设置训练选项并用训练数据训练网络。

1.算法仿真效果
matlab2022a仿真结果如下:

1.jpeg
2.jpeg
3.jpeg
4.jpeg
5.jpeg
6.jpeg
7.jpeg

2.算法涉及理论知识概要
数据采集:获取肉类样品在不同新鲜度阶段的图像数据,通常使用高分辨率相机拍摄并标注对应的新鲜度等级。

  GoogleNet模型因其独特的“ inception ”模块而得名,这种模块设计旨在同时利用不同尺度的特征。传统的卷积层在同一层面上使用固定大小的滤波器,而Inception模块则在一个模块内部集成多种大小的卷积核以捕获多尺度信息。

Inception模块
一个基本的Inception模块可以包括1x1、3x3和5x5卷积层,以及一个最大池化层,所有层的输出都会进行线性组合。例如,对于一个通道数为c 的输入特征图,其经过1x1卷积层(用于减少计算量和维度),3x3和5x5卷积层进行特征提取,以及最大池化层后,各层输出分别记作 a,b,c,d,尺寸分别为′a′,b′,c′,d′,则总输出O 可以表示为:

c653063bce0898da351325f4980c2e04_watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=.png

GoogLeNet模型结构
整个GoogLeNet模型由一系列堆叠的Inception模块构成,还包括了辅助分类器以增强梯度传播和模型训练。每一层都有批量归一化(Batch Normalization)和ReLU激活函数进行非线性变换。

肉类新鲜度检测应用
在应用于肉类新鲜度检测时,首先将肉类图像输入到GoogLeNet模型中,通过多个层级的特征提取,模型最终会在顶层生成一个表示新鲜度等级的概率分布。假设我们有 K 类新鲜度级别,则输出层通过softmax函数给出各个级别的概率:

3909ab6225343b0072fbea7e93c79caa_watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=.png

训练过程
模型的训练目标是最小化交叉熵损失函数:

ea5ba920831b0d1056d360d6339cdee5_watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=.png

3.MATLAB核心程序
```% 设置训练选项
maxEpochs = NEpochs;
Minibatch_Size = NMB;
Validation_Frequency = floor(numel(Resized_Training_Dataset.Files)/Minibatch_Size);
Training_Options = trainingOptions('sgdm', ...
'MiniBatchSize', Minibatch_Size, ...
'MaxEpochs', maxEpochs, ...
'InitialLearnRate', LR, ...
'Shuffle', 'every-epoch', ...
'ValidationData', Resized_Validation_Dataset, ...
'ValidationFrequency', Validation_Frequency, ...
'Verbose', false, ...
'Plots', 'training-progress');

% 使用训练选项训练网络
net = trainNetwork(Resized_Training_Dataset, New_Network, Training_Options);
% 保存训练后的网络
save gnet.mat net

function edit7_Callback(hObject, eventdata, handles)
% hObject handle to edit7 (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 edit7 as text
% str2double(get(hObject,'String')) returns contents of edit7 as a double

% --- Executes during object creation, after setting all properties.
function edit7_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit7 (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 edit8_Callback(hObject, eventdata, handles)
% hObject handle to edit8 (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 edit8 as text
% str2double(get(hObject,'String')) returns contents of edit8 as a double

% --- Executes during object creation, after setting all properties.
function edit8_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit8 (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 edit9_Callback(hObject, eventdata, handles)
% hObject handle to edit9 (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 edit9 as text
% str2double(get(hObject,'String')) returns contents of edit9 as a double

% --- Executes during object creation, after setting all properties.
function edit9_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit9 (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 edit10_Callback(hObject, eventdata, handles)
% hObject handle to edit10 (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 edit10 as text
% str2double(get(hObject,'String')) returns contents of edit10 as a double

% --- Executes during object creation, after setting all properties.
function edit10_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit10 (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 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
```

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