Applied Bionics and Biomechanics

Applied Bionics and Biomechanics / 2013 / Article

Open Access

Volume 10 |Article ID 463235 | https://doi.org/10.3233/ABB-130076

Qiang Zhang, Xiaoying Liang, Xiaopeng Wei, "Scattered Data Processing Approach Based on Optical Facial Motion Capture", Applied Bionics and Biomechanics, vol. 10, Article ID 463235, 13 pages, 2013. https://doi.org/10.3233/ABB-130076

Scattered Data Processing Approach Based on Optical Facial Motion Capture

Abstract

In recent years, animation reconstruction of facial expressions has become a popular research field in computer science and motion capture-based facial expression reconstruction is now emerging in this field. Based on the facial motion data obtained using a passive optical motion capture system, we propose a scattered data processing approach, which aims to solve the common problems of missing data and noise. To recover missing data, given the nonlinear relationships among neighbors with the current missing marker, we propose an improved version of a previous method, where we use the motion of three muscles rather than one to recover the missing data. To reduce the noise, we initially apply preprocessing to eliminate impulsive noise, before our proposed three-order quasi-uniform B-spline-based fitting method is used to reduce the remaining noise. Our experiments showed that the principles that underlie this method are simple and straightforward, and it delivered acceptable precision during reconstruction.

Copyright © 2013 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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