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User-Invariant Facial Animation with Convolutional Neural Network

  • Shuiquan Wang
  • Zhengxin Cheng
  • Liang Chang
  • Xuejun Qiao
  • Fuqing DuanEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11301)

Abstract

In this paper, we propose a robust approach for real-time user-invariant and performance-based face animation system using a single ordinary RGB camera with convolutional neural network (CNN), where the facial expression coefficients are used to drive the avatar. Existing shape regression algorithms usually take a two-step procedure to estimate facial expressions: The first is to estimate the 3D positions of facial landmarks, and the second is computing the head poses and expression coefficients. The proposed method directly regresses the face expression coefficients by using CNN. This single-shot regressor for facial expression coefficients is faster than the state-of-the-art single web camera based face animation system. Moreover, our method can avoid the user-specific 3D blendshapes, and thus it is user-invariant. Three different input size CNN architectures are designed and combined with Smoothed L1 and Gaussian loss functions to regress the expression coefficients. Experiments validate the proposed method.

Keywords

Facial animation CNN Face tracking Expression regression 

Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China under Grant No. 61572078.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Shuiquan Wang
    • 1
  • Zhengxin Cheng
    • 1
  • Liang Chang
    • 1
  • Xuejun Qiao
    • 2
  • Fuqing Duan
    • 1
    Email author
  1. 1.College of Information Science and TechnologyBeijing Normal UniversityBeijingChina
  2. 2.School of ScienceXi’an University of Architecture and TechnologyXi’anChina

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