Degrees of freedom in a vocal fold inverse problem
Gómez P, Kniesburges S, Schützenberger A, Bohr C, Döllinger M (2017)
Publication Type: Conference contribution
Publication year: 2017
Journal
Publisher: Springer Verlag
Book Volume: 10208 LNCS
Pages Range: 475-484
Conference Proceedings Title: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Event location: Granada
ISBN: 9783319561479
DOI: 10.1007/978-3-319-56148-6_42
Abstract
Experimental research on human phonation is negatively affected by the complexity of the process and the limiting anatomy of the larynx. Numerical simulation of the vocal folds and the formulation of an inverse problem is one way to remedy this. Several studies have explored this choosing different degrees of freedom (DOFs) in a biomechanical Two-Mass-Model (2MM). The selection of the DOFs in an inverse problem has a critical impact on the quality of possible solutions, but also affects the complexity of the problem and convergence speed in solving it. This work compares previous DOF configurations with several new extended configurations in solving the inverse problem for vocal fold recordings of 20 healthy female subjects. Results indicate that, for the 2MM, uncoupled mass and stiffness, and variable collision strength and damping coefficients improve the matching capabilities. They match physiology and lead to up to 50% smaller errors even for a low number of model evaluations.
Authors with CRIS profile
Pablo Gómez
Stefan Kniesburges
Anne Schützenberger Medizinische Fakultät Christopher Bohr Professur für Laryngologie Michael Döllinger Professur für Computational Medicine (DFG-Forschungsprofessur)
Stefan Kniesburges
Anne Schützenberger Medizinische Fakultät Christopher Bohr Professur für Laryngologie Michael Döllinger Professur für Computational Medicine (DFG-Forschungsprofessur)
How to cite
APA:
Gómez, P., Kniesburges, S., Schützenberger, A., Bohr, C., & Döllinger, M. (2017). Degrees of freedom in a vocal fold inverse problem. In Ignacio Rojas, Francisco Ortuno (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (pp. 475-484). Granada, ES: Springer Verlag.
MLA:
Gómez, Pablo, et al. "Degrees of freedom in a vocal fold inverse problem." Proceedings of the 5th International Work-Conference on Bioinformatics and Biomedical Engineering, IWBBIO 2017, Granada Ed. Ignacio Rojas, Francisco Ortuno, Springer Verlag, 2017. 475-484.
BibTeX: Download