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3D joint speaker position and orientation tracking with particle filters

Sensors (Basel, Switzerland), 2014-01, Vol.14 (2), p.2259-2279 [Peer Reviewed Journal]

Copyright MDPI AG 2014 ;Attribution-NonCommercial-NoDerivs 3.0 Spain info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ;2014 by the authors; licensee MDPI, Basel, Switzerland. 2014 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s140202259 ;PMID: 24481230

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  • Title:
    3D joint speaker position and orientation tracking with particle filters
  • Author: Segura, Carlos ; Hernando, Javier
  • Subjects: Acoustic source localization ; Algorithms ; Arrays ; Enginyeria de la telecomunicació ; Head pose ; Inertial ; Localization ; Mouth ; Orientation ; Position (location) ; Processament del senyal ; Signal processing ; Speaker orientation ; Three dimensional ; Tractament del senyal ; Àrees temàtiques de la UPC
  • Is Part Of: Sensors (Basel, Switzerland), 2014-01, Vol.14 (2), p.2259-2279
  • Description: This paper addresses the problem of three-dimensional speaker orientation estimation in a smart-room environment equipped with microphone arrays. A Bayesian approach is proposed to jointly track the location and orientation of an active speaker. The main motivation is that the knowledge of the speaker orientation may yield an increased localization performance and vice versa. Assuming that the sound produced by the speaker is originated from his mouth, the center of the head is deduced based on the estimated head orientation. Moreover, the elevation angle of the head of the speaker can be partly inferred from the fast vertical movements of the computed mouth location. In order to test the performance of the proposed algorithm, a new multimodal dataset has been recorded for this purpose, where the corresponding 3D orientation angles are acquired by an inertial measurement unit (IMU) provided by accelerometers, magnetometers and gyroscopes in the three-axes. The proposed joint algorithm outperforms a two-step approach in terms of localization and orientation angle precision assessing the superiority of the joint approach.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s140202259
    PMID: 24481230
  • Source: Recercat
    Geneva Foundation Free Medical Journals at publisher websites
    PubMed Central
    Directory of Open Access Journals
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central

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