Research Article

[Retracted] Deep Learning Model for Automatic Classification and Prediction of Brain Tumor

Table 2

(a) Different architectures of CNN: DenseNet121 and DenseNet201

LayersOutput sizeDenseNet121DenseNet201

Convolution, stride 2, stride 2
Pooling maxpool, stride 2 maxpool, stride 2
Dense block 1
Transitional layer 1
Dense block 2
Transitional layer 2
Dense block 3
Transitional layer 3
Dense block 4
Classification layer
1000Fully connected, SoftmaxFully connected, Softmax

(b) Different architectures of CNN: VGG 16 and VGG 19

LayersOutput sizeVGG 16VGG 19

Convolution Block1224×224
112×112Max pooling 2DMax pooling 2D
Convolution Block2112×112
56×56Max pooling 2DMax pooling 2D
Convolution Block356×56
28×28Max pooling 2DMax pooling 2D
Convolution Block428×28
14×14Max pooling 2DMax pooling 2D
Convolution Block514×14
7×7Max pooling 2DMax pooling 2D
Classification layer4096

(c) Different architectures of CNN and parameters of all the models

Name of modelSize of input layerSize of output layerNumber of layersTrainable parameters (millions)

VGG16(224, 224, 3)(4,1)16138
VGG19(224, 224, 3)(4,1)19143
DenseNet121(224, 224, 3)(4,1)1218
DenseNet201(224, 224, 3)(4,1)20110.2