You know, that was my initial reaction reading that comment, but thinking about it a little more made me realise that if you pass the noisey images to humans, t

You know, that was my initial reaction reading that comment, but thinking about it a little more made me realise that if you pass the noisey images to humans, they can validate if the noise is such that the signal is gone. I don't know if that's what they're doing, but it would be a clever way to do data augmentation.