We introduce MyStyle, a personalized deep generative prior trained with a few
shots of an individual. MyStyle allows to reconstruct, enhance and edit images
of a specific person, such that the output is faithful to the person's key
facial characteristics. Given a small reference set of portrait images of a
person (~100), we tune the weights of a pretrained StyleGAN face generator to
form a local, low-dimensional, personalized manifold in the latent space. We
show that this manifold constitutes a personalized region that spans latent
codes associated with diverse portrait images of the individual. Moreover, we
demonstrate that we obtain a personalized generative prior, and propose a
unified approach to apply it to various ill-posed image enhancement problems,
such as inpainting and super-resolution, as well as semantic editing. Using the
personalized generative prior we obtain outputs that exhibit high-fidelity to
the input images and are also faithful to the key facial characteristics of the
individual in the reference set. We demonstrate our method with fair-use images
of numerous widely recognizable individuals for whom we have the prior
knowledge for a qualitative evaluation of the expected outcome. We evaluate our
approach against few-shots baselines and show that our personalized prior,
quantitatively and qualitatively, outperforms state-of-the-art alternatives.

本文介绍了 MyStyle，这是一种使用少量照片训练的个性化深度生成先验的方法，其可以重建、增强和编辑特定人物的图像，生成的图像忠实于人物的关键面部特征。通过少量照片我们可以调整预训练的 StyleGAN 面部生成器的权重，形成一个本地的、低维的、个性化的流形空间，该流形空间包含与个人不同的各种肖像图片的潜在编码。此外，我们提出了一种统一的方法，将其应用于各种不适定的图像增强问题，例如修复、超分辨率和语义编辑，并取得了优异的定量和定性水平。