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Why concatenate lowres before last conv? #369

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ifeherva opened this issue Nov 3, 2023 · 0 comments

ifeherva commented Nov 3, 2023

This line: https://github.com/lucidrains/imagen-pytorch/blob/main/imagen_pytorch/imagen_pytorch.py#L1720

shows that before the last conv we concatenate the low-res (again). Where does this idea come from? Can someone link a paper/repository?

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