Blind Separation of TMJ Sounds by Incorporating Fractional Delay Estimation

Clive Cheong Took, Kianoush Nazarpour, Saeid Sanei, Jonathon Chambers

Research output: Contribution to conferencePaperpeer-review

Abstract

Temporomandibular joint (TMJ) sounds are generated from the two joints holding the lower jaw and the temporal bone (the skull) in patients suffering from temporomandibular disorder (TMD). In this study, we shall show how the inherent fractional delay between a pair of TMJ sources can be estimated by time localised sparse component analysis. In effect, the active periods of one of the sources will assist us in estimating the delay by employing modified versions of either the maximum likelihood (MLE) delay estimator or the mixed modulated Lagrange explicit time delay estimator (MMLETDE). Thereafter, we consider a strategy based on delaying the mixtures to solve the blind source separation of the TMJ sources. Simulation studies confirm the efficacy of the proposed scheme.
Original languageEnglish
Number of pages4
Publication statusPublished - 20 Dec 2006
Event7th International Conference on Mathematics of Signal Processing - Cirencester, United Kingdom
Duration: 18 Dec 200620 Dec 2006

Conference

Conference7th International Conference on Mathematics of Signal Processing
CountryUnited Kingdom
CityCirencester
Period18/12/0620/12/06

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