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2006 Fiscal Year Final Research Report Summary

Researches of Real-Time Signal Processing for Blind Source Separation in Convolutive Mixing Environment and Real-Time Signal Processing for Independent Component Analysis

Research Project

Project/Area Number 16500134
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Sensitivity informatics/Soft computing
Research InstitutionThe University of Aizu

Principal Investigator

DING Shuxue  The University of Aizu, Department of Computer Software, Associate Professor, コンピュータ理工学部, 助教授 (80372829)

Co-Investigator(Kenkyū-buntansha) CICHOCKI Andrzej  University of Aizu, RIKEN, Brain Science Institute, Professor, 脳科学総合研究センター, 教授 (40415071)
WEI Daming  University of Aizu, Department of Computer Software, Professor, コンピュータ理工学部, 教授 (20306434)
COHEN Michael  University of Aizu, Department of Computer Software, Professor, コンピュータ理工学部, 教授 (20254063)
HUANG Jie  University of Aizu, Department of Computer Software, Associate Professor, コンピュータ理工学部, 助教授 (10261166)
CHEN Weixi  University of Aizu, Department of Computer Software, Associate Professor, コンピュータ理工学部, 助教授 (60308278)
Project Period (FY) 2004 – 2006
KeywordsBlind Source Separation / Independent Component Analysis / Convolutive Mixture / Blind Acoustic Source Separation
Research Abstract

(1) We present a novel algorithm for independent component analysis (ICA) based on gradient learning with simultaneous perturbation stochastic approximation (SPSA). This algorithm can work well in on-line mode, in a dynamic mixing environment. It converges very fast even for non-stationary, and/or non-identically independent distributed (non-I.I.D.) signals, so that the algorithm is very suitable for most real-time applications.
(2) We present an approach for blind separation of acoustic sources produced from multiple speakers mixed in realistic room environments. We first transform recorded signals into the time-frequency domain. We then separate the sources in each frequency bin based on an ICA algorithm. We choose the complex version of fixed point iteration (CFPI) as the algorithm.
(3) We proposed an algorithm for real-time signal processing of convolutive blind source separation (CBSS). We applied an overlap-and-save strategy, and considered the issue of separating sources in the fr … More equency domain. We introduced a modified correlation matrix and performed CBSS by diagonalization of the matrix. We proposed a method that could diagonalize the modified correlation matrix by solving a so-called normal equation for CBSS. A real-time separation of the convolutive mixtures of sources can be performed.
(4) CBSS that exploits the sparsity of source signals in the frequency domain was addressed. We proposed a novel natural gradient method for complex sparse representation. Moreover, a new CBSS method was further developed based on complex sparse representation. The developed CBSS algorithm works in the frequency domain.
(5) This research presents a new type of algorithm for solving ICA problems. This new algorithm was based on an effective updating scheme in which learning updating acts as a series of orthonormal matrix transformations. One attractive feature of the algorithm is that it does not include any predetermined parameters, such as a learning step size, as do gradient-based algorithms. Less

  • Research Products

    (22 results)

All 2007 2006 2005 2004

All Journal Article (22 results)

  • [Journal Article] Convolutive Blind Source Separation in the Frequency Domain Based on Sparse Representation2007

    • Author(s)
      Zhaoshui He, Shengli Xie, Shuxue Ding, Andrzej Cichocki.
    • Journal Title

      Has been accepted for a publication in IEEE Transactions on Audio, Speech and Language Processing

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Independent Component Analysis via Learning Updating Using a Form of Orthonormal Transformation Based on the Diagonalization Principle2007

    • Author(s)
      Shuxue Ding
    • Journal Title

      Has been accepted for a publication in International Journal of Innovative Computing, Information and Control

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A Near Real-Time Approach for Convolutive Blind Source Separation2006

    • Author(s)
      丁 数学, J.Huang, D.Wei, A.Cichocki
    • Journal Title

      IEEE Transactions on Circuits and Systems, Part I : Regular Papers Vol.53, No.1

      Pages: 114-128

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A Power Iteration Algorithm for ICA Based on Diagonalizations of Non-Linearized Covariance Matrix2006

    • Author(s)
      丁 数学
    • Journal Title

      Proc. ICICIC-06 (International Conference on Innovative Computing, Information and Control 2006) ICICIC-06

      Pages: 730-733

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Independent Component Analysis without Predetermined Learning Parameter2006

    • Author(s)
      丁 数学
    • Journal Title

      Proc. CIT 2006 (2006 IEEE International Conference on Computer and Information Technology) CIT 2006

      Pages: 135-139

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A Near Real-Time Approach for Convolutive Blind Source Separation2006

    • Author(s)
      Shuxue Ding, Jie Huang, Darning Wei, Andrzej Cichocki
    • Journal Title

      IEEE Transactions on Circuits and Systems, Part I : Regular Papers Vol.53, No.1

      Pages: 114-128

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Independent Component Analysis without Predetermined Learning Parameter2006

    • Author(s)
      Shuxue Ding
    • Journal Title

      Proc. 2006 IEEE International Conference on Computer and Information Technology (CIT 2006, IEEE sponsored, Seoul, Korea, Sep. 20-22, 2006)

      Pages: 135-139

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A Power Iteration Algorithm for ICA Based on Diagonalizations of Non-Linearized Covariance Matrix2006

    • Author(s)
      Shuxue Ding
    • Journal Title

      Proc. International Conference on Innovative Computing, Information and Control 2006 (ICICIC-06, IEEE sponsored, Beijing, China, Aug. 30-Sep.1, 2006)

      Pages: 730-733

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Blind Source Separation of Acoustic Signals in Realistic Environments Based on ICA in the Time-Frequency Domain2005

    • Author(s)
      丁 数学, A.Cichocki, J.Huang, D.Wei
    • Journal Title

      Journal of Pervasive Computing and Communications Vol.1, No.2

      Pages: 89-99

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A Scalable Mobile Phone-Based System for Multiple Vital Signs Monitoring and Healthcare2005

    • Author(s)
      W.Chen, D.Wei, 丁 数学, M.Cohen, H.Wang, S Tokinoya, N.Takeda
    • Journal Title

      Journal of Pervasive Computing and Communications Vol.1, No.2

      Pages: 157-163

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Blind Source Separation of Acoustic Signals in Realistic Environments Based on ICA in the Time-Frequency Domain2005

    • Author(s)
      Shuxue Ding, Andrzej Cichocki, Jie Huang, Darning Wei
    • Journal Title

      International of Journal of Pervasive Computing and Communications Vol.1, No.2

      Pages: 89-99

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Shigeru Tokinoya and Naotoshi Takeda, A Scalable Mobile Phone-Based System for Multiple Vital Signs Monitoring and Healthcare2005

    • Author(s)
      Wenxi Chen, Darning Wei, Shuxue Ding, Michael Cohen, Hui Wang
    • Journal Title

      International of Journal of Pervasive Computing and Communications Vol.1, No.2

      Pages: 157-163

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Real-Time Blind Source Separation of Acoustic Signals with a Recursive Approach2004

    • Author(s)
      丁 数学, J.Huang, D.Wei
    • Journal Title

      International Journal. of Computational Intelligence and Applications Vol.4, No.2

      Pages: 193-206

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Derivation of Respiratory Signal from Single-Channel. ECGs Based on Source Statistics2004

    • Author(s)
      丁 数学, X.Zhu, W.Chen, D.Wei
    • Journal Title

      International Journal of Bioelectromagnetism Vol.6, No.2

      Pages: 43-49

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Real-Time Independent Component Analysis Based on Gradient Learning with Simultaneous Perturbation Stochastic Approximation2004

    • Author(s)
      丁 数学, J.Huang, D.Wei, S.Omata
    • Journal Title

      Lecture Notes in Artificial Intelligence 3214 (Subseries of Lecture Notes in Computer Science) 3214

      Pages: 366-374

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] An Algorithm for Real-Time Independent Component Analysis in Dynamic Environments2004

    • Author(s)
      丁 数学, D.Wei, S.Omata
    • Journal Title

      Proc. MWSCAS 2004 (The 2004 IEEE International Midwest Symposium on Circuits and Systems) MWSCAS 2004

      Pages: III-105-III-108

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Combined subband independent component analysis and neural memory for blind speech extraction2004

    • Author(s)
      T.Hanada, T.Hoya, 丁 数学, A.K.Barros, Y.Ishida
    • Journal Title

      Proc. ITC-CSCC 2004 (The 2004 International Technical Conference on Circuits/Systems, Computers and Communications) Proc. ITC-CSCC 2004

      Pages: 6B2L-1-1-6B2L-1-4

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Real-Time Independent Component Analysis Based on Gradient Learning with Simultaneous Perturbation Stochastic Approximation2004

    • Author(s)
      Shuxue Ding, Jie Huang, Darning Wei, Sadao Omata
    • Journal Title

      Lecture Notes in Artificial Intelligence (ISSN : 0302-9743, SCI Master Journal List) 3214 (Subseries of Lecture Notes in Computer Science) Part II

      Pages: 366-374

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Derivation of Respiratory Signal from Single-Channel ECGs Based on Source Statistics2004

    • Author(s)
      Shuxue Ding, Xin Zhu, Wenxi Chen, Daming Wei
    • Journal Title

      International Journal of Bioelectromagnetism Vol.6, No.2

      Pages: 43-49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Real-Time Blind Source Separation of Acoustic Signals with a Recursive Approach2004

    • Author(s)
      Shuxue Ding, Jie Huang, Darning Wei
    • Journal Title

      International Journal of Computational Intelligence and Applications Vol. 4, No. 2

      Pages: 193-206

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Combined subband independent component analysis and neural memory for blind speech extraction2004

    • Author(s)
      Takeshi Hanada, Tetsuya Hoya, Shuxue Ding, Allan Kardec Barros, Yoshihisa Ishida
    • Journal Title

      Proc. ITC-CSCC 2004 (The 2004 International Technical Conference on Circuits/Systems, Computers and Communications)

      Pages: 6B2L-1-1-6B2L-1-4

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] An Algorithm for Real-Time Independent Component Analysis in Dynamic Environments2004

    • Author(s)
      Shuxue Ding Darning Wei, Sadao Omata
    • Journal Title

      Proc. MWSCAS 2004 (The 2004 IEEE International Midwest Symposium on Circuits and Systems, Hiroshima, Japan, July 25-28, 2004)

      Pages: III-105-III-108

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27   Modified: 2021-04-07  

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