I am reading a paper named " IEA: Inner ensemble average within a convolutional neural network"https://arxiv.org/abs/1808.10350 1  and the author proposed a structure as followed

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And  I am unable to understand the IEA method, because I think the average of the three conv, bn, and relu operations is the same result of one conv, bn, and relu operation.
Can anyone explain it for me? Or give me some sample code to make me understand
THANK YOU!!!