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arXiv 1802.07421cs.CV
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三维人脸动作单元的条件对抗合成

Conditional Adversarial Synthesis of 3D Facial Action Units

Tianjin University(天津大学);Nanyang Technological University(南洋理工大学);University of Science and Technology of China(中国科学技术大学)

Zhilei Liu, Guoxian Song, Jianfei Cai, Tat-Jen Cham, Juyong Zhang

摘要:

采用基于深度学习的方法进行细粒度面部表情分析(诸如涉及动作单元(AU)强度估计的那些)是困难的,这是由于缺乏具有足够多样化的AU标签的真实面部的大规模数据集以用于训练。在本文中,我们考虑如何使用AU级面部图像合成来大幅增强这样的数据集。我们提出了一个AU合成框架,结合了著名的3D变形模型(3DMM),它本质上解开其他面部属性的表达参数,与模型,对抗生成3DMM表达参数的条件下给定的目标AU标签,在对比更传统的方法直接生成面部图像。通过这种方式,我们能够从所需的AU标签合成表情参数和面部图像的新组合。在基准DISFA数据集上的大量定量和定性结果证明了我们的方法在基于深度学习的AU强度估计的3DMM面部表情参数合成和数据增强上的有效性。

英文摘要:

Employing deep learning-based approaches for fine-grained facial expression analysis, such as those involving the estimation of Action Unit (AU) intensities, is difficult due to the lack of a large-scale dataset of real faces with sufficiently diverse AU labels for training. In this paper, we consider how AU-level facial image synthesis can be used to substantially augment such a dataset. We propose an AU synthesis framework that combines the well-known 3D Morphable Model (3DMM), which intrinsically disentangles expression parameters from other face attributes, with models that adversarially generate 3DMM expression parameters conditioned on given target AU labels, in contrast to the more conventional approach of generating facial images directly. In this way, we are able to synthesize new combinations of expression parameters and facial images from desired AU labels. Extensive quantitative and qualitative results on the benchmark DISFA dataset demonstrate the effectiveness of our method on 3DMM facial expression parameter synthesis and data augmentation for deep learning-based AU intensity estimation.

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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