0x422 Model

Evaluation

Metric (FID, Fréchet inception distance) Assess the quality of generative datasets (thus its underlying generative model) using Wasserstein metric between

• multi-dim Gaussian fitting to the internal activations of generative model
• multi-dim Gaussian fitting to the activations of real images

Recall the Wasserstein of gaussian has closed form.

Note that FID is not fully aligned with perceptual quality. The low-level image processing (e.g. resizing, compression) might impact it according to this work

Here is an implementation on github