Input for different training iterations

[xuwh15]

Hello I have a little doubt about the paper. Since the training set only consist of one image, I believe the same image is downsampled and fed into the discriminator over and over again in different iterations? So is there any special tricks to make the network learn patch distribution from the same input over different iterations?

[tamarott]

In all the scales we use a patch-discriminator which has a small receptive field of 11x11, therefore the discriminator never sees the full image, but only 11x11 patches from it, and return a discrimination score for each patch. This means that practically, our training set is the set of all overlapping patches within the real image across multiple scales.