Abstract

We explore marker-less tracking methods for the purpose ofevaluating the efficacy of facial re-constructive surgery on patients withfacial palsies. After experimenting with several optical flow methods, wechoose an approach that results in less than 2 pixels in tracking error for15 markers tracked on the face. A novel method is presented that utilizesthe non-rigid deformation observed on facial skin tissue to visualize theseverity of facial paralysis. Results are given on a dataset that containsthree videos of an individual recorded using a standard definition cameraboth before and after undergoing facial reconstructive surgery over aperiod of three years.

Reference

Shreve, M., Jain, N., Goldgof, D., Sarkar, S., & Kropatsch, W. (2011). Evaluation of Facial Reconstructive Surgery on Patients with Facial Palsy using Optical Strain. In The 14th International Conference on Computer Analysis of Images and Patterns (CAIP), volume 6854 of Lecture Notes in Computer Science (pp. 512–519). Proc. CAIP 2011 - 14th International Conference on Computer Analysis of Images and Patterns, LNCS 6854, Ainhoa Berciano et al. Eds./Springer. http://hdl.handle.net/20.500.12708/53906