arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.03251cs.CVeess.IV
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一次面部重现

One-shot Face Reenactment

SenseTime Research(商汤科技研究院);Nanyang Technological University(南洋理工大学);The Chinese University of Hong Kong(香港中文大学)

Yunxuan Zhang, Siwei Zhang, Yue He, Cheng Li, Chen Change Loy, Ziwei Liu

摘要:

为了实现逼真的形状(例如姿势和表情)转移,现有的面部重现方法依赖于一组目标面部来学习特定于主题的特征。然而,在现实世界的情况下,最终用户往往只有一个目标的脸在手,使现有的方法不适用。在这项工作中,我们提出了一种新颖的一次性面部重演学习框架,以弥补这一差距。我们的关键见解是,一次性学习器应该能够解开和组成的外观和形状信息,有效的建模。具体地,目标面部外观和源面部形状首先利用其对应的编码器被投影到潜在空间中。然后通过学习一个共享的解码器将这两个潜在空间关联起来,该解码器聚合多级特征以产生最终的重演结果。为了进一步提高胡子和头发区域的合成质量,我们还提出了FusionNet,它结合了我们学习的解码器和传统的扭曲方法的优点。大量的实验表明,我们的一杆脸重演系统实现了优越的传输保真度以及身份保护能力比替代品。更值得注意的是,我们的方法训练每个主题只有一个目标图像实现了竞争力的结果,那些使用一组目标图像,证明了这项工作的实际价值。代码,模型和一组额外的重新制定的面孔已经在项目页面上公开发布。

英文摘要:

To enable realistic shape (e.g. pose and expression) transfer, existing face reenactment methods rely on a set of target faces for learning subject-specific traits. However, in real-world scenario end-users often only have one target face at hand, rendering existing methods inapplicable. In this work, we bridge this gap by proposing a novel one-shot face reenactment learning framework. Our key insight is that the one-shot learner should be able to disentangle and compose appearance and shape information for effective modeling. Specifically, the target face appearance and the source face shape are first projected into latent spaces with their corresponding encoders. Then these two latent spaces are associated by learning a shared decoder that aggregates multi-level features to produce the final reenactment results. To further improve the synthesizing quality on mustache and hair regions, we additionally propose FusionNet which combines the strengths of our learned decoder and the traditional warping method. Extensive experiments show that our one-shot face reenactment system achieves superior transfer fidelity as well as identity preserving capability than alternatives. More remarkably, our approach trained with only one target image per subject achieves competitive results to those using a set of target images, demonstrating the practical merit of this work. Code, models and an additional set of reenacted faces have been publicly released at the project page.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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