This fast dense feature extraction method (FDFE) seems not equal to the common one in terms of different receptive field.

[proteus1991]

This fast dense feature extraction method (FDFE) seems not equal to the common one in terms of different receptive field.

[proteus1991]

In my use case, the patch size is strictly limited to 24 * 24, which means the receptive field in CNN cannot exceed this size. Therefore, could you please enlighten me on how I can change your code accordingly to satisfy this requirement?

[erezposner]

The receptive field equals the patch size. The proposed method simply eliminates repeated calculations and does not change the receptive field.

You can also perform a simple experiment to evaluate the equality of the two approached and that is to inspect both outcomes.