Recent studies have shown that StyleGANs provide promising prior models for downstream tasks on image synthesis and editing. However, since the latent codes of StyleGANs are designed to control global styles, it is hard to achieve a fine-grained control over synthesized images. We present SemanticStyleGAN, where a generator is trained to model local semantic parts separately and synthesizes images in a compositional way. The structure and texture of different local parts are controlled by corresponding latent codes. Experimental results demonstrate that our model provides a strong disentanglement between different spatial areas. When combined with editing methods designed for StyleGANs, it can achieve a more fine-grained control to edit synthesized or real images. The model can also be extended to other domains via transfer learning. Thus, as a generic prior model with built-in disentanglement, it could facilitate the development of GAN-based applications and enable more potential downstream tasks.

通过训练一个生成器来分别对局部语义部分进行建模，控制不同区域的纹理并且实现更加细粒度的合成和编辑，SemanticStyleGAN作为具有内置解缠结的通用先验模型，可以促进基于GAN的应用程序的发展并实现更多的下游任务。

SemanticStyleGAN：学习组合生成先验进行可控图像合成和编辑