Comments (3)
Pix2pix training on convergence curves on Facades dataset using batch sizes of 1, 16, 32, respectively.
from pytorch-cyclegan-and-pix2pix.
Thanks! Also note that batchsize=1 is instance norm (aka contrast normalization), which has qualitatively different properties from batchnorm. Batchnorm achieves invariance to mean and variance of features across a bunch of images. Instance norm achieves invariance to mean and variance of features in a single image. As a result, instance norm will be (nearly) invariant to image-level operations like changing the exposure or contrast of a photo, whereas batchnorm will not. Batchnorm is only invariant to batch-level operations.
*caveat, these statements are only strictly true if the momentum parameter is set to zero, which we don't do in practice
from pytorch-cyclegan-and-pix2pix.
We haven't compared the quality of results with different batch sizes. It would be great if someone can look at it. We use batchSize=1 mainly because we would like to train a model on images with higher resolution.
from pytorch-cyclegan-and-pix2pix.
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from pytorch-cyclegan-and-pix2pix.