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Towards Faster and Stabilized GAN Training for High-fidelity Few-shot Image Synthesis

2021-01-12ICLR 2021Code Available1· sign in to hype

Bingchen Liu, Yizhe Zhu, Kunpeng Song, Ahmed Elgammal

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Abstract

Training Generative Adversarial Networks (GAN) on high-fidelity images usually requires large-scale GPU-clusters and a vast number of training images. In this paper, we study the few-shot image synthesis task for GAN with minimum computing cost. We propose a light-weight GAN structure that gains superior quality on 1024*1024 resolution. Notably, the model converges from scratch with just a few hours of training on a single RTX-2080 GPU, and has a consistent performance, even with less than 100 training samples. Two technique designs constitute our work, a skip-layer channel-wise excitation module and a self-supervised discriminator trained as a feature-encoder. With thirteen datasets covering a wide variety of image domains (The datasets and code are available at: https://github.com/odegeasslbc/FastGAN-pytorch), we show our model's superior performance compared to the state-of-the-art StyleGAN2, when data and computing budget are limited.

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Benchmark Results

DatasetModelMetricClaimedVerifiedStatus
ADE-IndoorFastGANFID30.33Unverified
Pokemon 1024x1024FastGANFID56.46Unverified
Pokemon 256x256FastGANFID81.86Unverified

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