torch.nn.ConvTranspose2d vs torch.nn.Upsample

[John1231983]

@justusschock

Transpose is a convolution and has trainable kernels while Upsample is a simple interpolation (bilinear, nearest etc.)

Transpose is learning parameter while Up-sampling is no-learning parameters. Using Up-samling for faster inference or training because it does not require to update weight or compute gradient