Notes from arXiv:1611.07004v1 [cs.CV] 21 Nov 2016
- Euclidean distance between predicted and ground truth pixels is not a good method of judging similarity because it yields blurry images.
- GANs learn a loss function rather than using an existing one.
- GANs learn a loss that tries to classify if the output image is real or fake, while simultaneously training a generative model to minimize this loss.
- Conditional GANs (cGANs) learn a mapping from observed image
x
and random noise vectorz
toy
:y = f(x, z)
- The generator
G
is trained to produce outputs that cannot be distinguished from "real" images by an adversarially trained discrimintor,D
which is trained to do as well as possible at detecting the generator's "fakes". - The discriminator
D
, learns to classify between real and synthesized pairs. The generator learns to fool the discriminator. - Unlike an unconditional GAN, both th