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Finding an Unsupervised Image Segmenter in each of your Deep Generative Models

ICLR 2022 · Image generation › GANs · approach: GAN-based image manipulation · 20 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Automatically discover a generator-specific foreground/background direction and train a segmenter on generated image-mask pairsPretrained GANs · DUTSIoUHelped
Combine foreground-light and foreground-dark latent directions rather than use either direction alone (ablation)BigBiGAN segmentation pipeline · CUBIoU: 0.601 -> 0.664 (vl); 0.631 -> 0.664 (vd)Helped
Combine foreground-light and foreground-dark latent directions rather than use either direction alone (ablation)BigBiGAN segmentation pipeline · DUTSIoU: 0.486 -> 0.528 (vl); 0.478 -> 0.528 (vd)Helped
Combine foreground-light and foreground-dark latent directions rather than use either direction alone (ablation)BigBiGAN segmentation pipeline · ECSSDIoU: 0.663 -> 0.713 (vl); 0.672 -> 0.713 (vd)Helped
Use both directions rather than only the foreground-light direction (ablation)BigBiGAN segmentation pipeline · FlowersIoU: 0.479 -> 0.541Mixed
Set λ to 0.2 rather than 0.1 during latent-direction optimization (ablation)BigBiGAN segmentation pipeline · CUBIoU: 0.631 -> 0.658Helped
Increase λ from 0.2 to 0.4 during latent-direction optimization (ablation)BigBiGAN segmentation pipeline · CUBIoU: 0.658 -> 0.418Hurt
Set perturbation length ε to 2 rather than 4 (ablation)BigBiGAN segmentation pipeline · FlowersIoU: 0.435 -> 0.479Helped
Increase perturbation length ε from 2 to 6 (ablation)BigBiGAN segmentation pipeline · DUTSIoU: 0.486 -> 0.238Hurt
Replace one trained segmentation network with an ensemble of networks trained on each latent direction (ablation)BigBiGAN segmentation pipeline · CUBIoU: 0.664 -> 0.650No clear effect

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