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.

本文提出了一种轻量级的GAN结构，通过跳过层通道智能激发模块和自监督判别器训练作为特征编码器，实现少量样本进行高保真度图像的合成与生成。与StyleGAN2相比，本模型在数据和计算预算有限的情况下具有卓越的性能表现。

面向高保真度小样本图像合成的更快更稳定的GAN训练