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Creative Sketch Generation

ICLR 2021 · Image generation › GANs · approach: GAN-based image manipulation · 21 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use part-based generation with a part selectorDoodlerGAN · Creative BirdsFID: 71.05 -> 39.95Helped
use part-based generation with a part selectorDoodlerGAN · Creative CreaturesCS: 0.48 -> 0.55Helped
use part-based generation with a part selectorDoodlerGAN · Creative CreaturesGD: 16.11 -> 14.57Hurt
use part-based generation rather than 20% stroke-order chunksDoodlerGAN · Creative BirdsFID: 103.79 -> 39.95Helped
use part-wise channels instead of conditioning on the entire partial sketch without part channels (ablation)DoodlerGAN part generator · Creative Birdseye containment failure rate: 57.4% -> 88.7%Mixed
remove U-Net connections and concatenate encoder output directly with noise (ablation)DoodlerGAN part generator · Creative Birds and Creative Creaturespart composition qualityHurt
replace the learned part selector with a fixed most-common part order (ablation)DoodlerGAN · Creative Birds and Creative Creaturessketch qualityHurt
apply conditioning perturbation by translating the partial sketch before generation (ablation)DoodlerGAN part generator · Creative Birdspart generation diversityHelped
use larger affine transformations during part-generator training (ablation)DoodlerGAN · Creative Birdsgenerated part qualityHurt
use larger affine transformations and longer training for creature part generators (ablation)DoodlerGAN · Creative Creaturesgenerated part qualityHelped
sample and rank 10 candidate eyes by pixel sum and distance to the initial stroke (ablation)DoodlerGAN inference · Creative Birdsgeneration qualityHelped
sample and rank candidate eyes by pixel sum and distance to the initial stroke (ablation)DoodlerGAN inference · Creative Creaturesgeneration qualityNo clear effect

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