GAN Inversion: A Survey

TL;DR

This survey reviews recent algorithms and applications of GAN inversion, highlighting its role in real image editing, interpretation of latent space, and future challenges in the field.

Contribution

It provides a comprehensive overview of GAN inversion techniques, their applications, and discusses future trends and challenges in the area.

Findings

GAN inversion enables effective real image editing.

It offers insights into GANs' latent space interpretation.

GAN inversion techniques improve image restoration and manipulation.

Abstract

GAN inversion aims to invert a given image back into the latent space of a pretrained GAN model, for the image to be faithfully reconstructed from the inverted code by the generator. As an emerging technique to bridge the real and fake image domains, GAN inversion plays an essential role in enabling the pretrained GAN models such as StyleGAN and BigGAN to be used for real image editing applications. Meanwhile, GAN inversion also provides insights on the interpretation of GAN's latent space and how the realistic images can be generated. In this paper, we provide an overview of GAN inversion with a focus on its recent algorithms and applications. We cover important techniques of GAN inversion and their applications to image restoration and image manipulation. We further elaborate on some trends and challenges for future directions.