Stage

Output

ResNeXt-50 (32 × 4d)

Conv1

112 × 112

7 × 7, 64, stride 2

Conv2

56 × 56

3 × 3 max pool, stride 2

$\left[\begin{array}{l}1\times 1,128\\ 3\times 3,128,C=32\\ 1\times 1,256\end{array}\right]\times 3$

Conv3

28 × 28

$\left[\begin{array}{l}1\times 1,256\\ 3\times 3,256,C=32\\ 1\times 1,512\end{array}\right]\times 4$

Conv4

14 × 14

$\left[\begin{array}{l}1\times 1,512\\ 3\times 3,512,C=32\\ 1\times 1,1024\end{array}\right]\times 6$

Conv5

7 × 7

$\left[\begin{array}{l}1\times 1,1024\\ 3\times 3,1024,C=32\\ 1\times 1,2048\end{array}\right]\times 3$

1 × 1

Global average pool 1000-d fc, softmax

# params.

25.0 × 10⁶

FLOPs

4.2 × 10⁹