Table 5 ResNet-50 Layers.

From: Deep‑learning based osteoporosis classification in knee X‑rays using transfer‑learning approach

Layers

Description

Output Shape

Conv1

7*7 convolution, stride 2, 64 filters

112*112*64

Max Pooling

3*3 max pooling, stride 2

56*56*64

Residual Block 1 (Stage 1)

Three Residual Blocks, each consisting of a 1*1,3*3 and 1*1 bottleneck structure, 64 filters

56*56*256

Residual Block 2 (Stage 2)

4 Residual Blocks, 128 filters

28*28*512

Residual Block 3 (Stage 3)

6 Residual Blocks, 256 filters

14*14*1024

Residual Block 4 (Stage 4)

3 Residual Blocks, 512 filters

7*7*2048

Global Average Pooling

Averages each feature map into one value

1*1*2048

Fully Connected Layers

Averages each feature map into one value

Number of classes (e.g., 1000 for ImageNet)