IEEE Signal Processing Society Japan Chapter 会員各位

     IEEE Signal Processing Society Japan Chapter
             Chair      杉山昭彦(NEC)
             Vice Chair 嵯峨山茂樹(東京大学)

IEEE Signal Processing Society Japan Chapterの主催で下記のとおり
筑波大学の牧野昭二先生によるDistinguished Lecturer講演会を電子情報
通信学会応用音響研究会の終了後に引き続き実施いたします．奮ってご参
加いただきますようお願いいたします。


                        記

          IEEE SPS Japan Chapter DL講演会

(1) 講演者: 牧野昭二 先生（筑波大学　教授，IEEE Signal Processing
            Society Distinguished Lecturer）

(2) 開催日時:2010年12月10日(金) 16:00-17:00

(3) 会  場:筑波大学 先端学際領域研究センター　A棟セミナー室

　　つくばエクスプレスつくば駅より筑波大学循環バスに乗車し，
　　TARAセンター前で下車，徒歩１分


　　※本講演会に先立ち電子情報通信学会応用音響研究会が開催されます．
　　　詳細は下記のホームページをご参照ください．

　　http://wwwsoc.nii.ac.jp/asj/EA/index-j.html

(4) 講演題目
独立成分分析に基づくブラインド音源分離

(5) 講演概要
This talk describes a state-of-the-art method for the blind source
separation (BSS) of convolutive mixtures of audio signals, especially
speech. A statistical and computational technique, called independent
component analysis (ICA), is examined. We provide examples to show
how ICA criteria change as the number of audio sources increases. By
achieving nonlinear decorrelation, nonstationary decorrelation, or
time-delayed decorrelation, we can find source signals only from
observed mixed signals. We then discuss a frequency-domain approach
where simple instantaneous ICA is employed in each frequency bin.
Particular attention is paid to the physical interpretation of BSS
from the acoustical signal processing point of view. Frequency-domain
BSS is shown to be equivalent to two sets of frequency domain
adaptive microphone arrays, i.e., adaptive beamformers (ABFs).
Although BSS makes spatial notch to a jammer as well as ABF, BSS has
a strong advantage over ABF. BSS can be regarded as an intelligent
version of ABF in the sense that it can adapt without any information
on the array manifold or the target direction, and sources can be
simultaneously active in BSS. 

(6) 講演者紹介
Shoji Makino (F) received B. E., M. E., and Ph. D. degrees from
Tohoku University, Japan, in 1979, 1981, and 1993, respectively. He
joined NTT in 1981. He is now a Professor at University of Tsukuba.
His research interests include adaptive filtering technologies, the
realization of acoustic echo cancellation, blind source separation of
convolutive mixtures of speech, and acoustic signal processing for
speech and audio applications.

He received the ICA Unsupervised Learning Pioneer Award in 2006, the
IEEE MLSP Competition Award in 2007, the TELECOM System Technology
Award in 2004, the Achievement Award of the Institute of Electronics,
Information, and Communication Engineers (IEICE) in 1997, and the
Outstanding Technological Development Award of the Acoustical Society
of Japan (ASJ) in 1995, the Paper Award of the IEICE in 2005 and
2002, the Paper Award of the ASJ in 2005 and 2002. He is the author
or co-author of more than 200 articles in journals and conference
proceedings and is responsible for more than 150 patents. He was a
Keynote Speaker at ICA2007, a Tutorial speaker at ICASSP2007.

He has served on IEEE SPS Awards Board (2006-08) and IEEE SPS
Conference Board (2002-04). He is a member of the James L. Flanagan
Speech & Audio Processing Award Committee. He was an Associate Editor
of the IEEE Transactions on Speech and Audio Processing (2002-05) and
is an Associate Editor of the EURASIP Journal on Advances in Signal
Processing. He is a member of SPS Audio and Electroacoustics
Technical Committee and the Chair of the Blind Signal Processing
Technical Committee of the IEEE Circuits and Systems Society. He was
the Vice President of the Engineering Sciences Society of the IEICE
(2007-08), and the Chair of the Engineering Acoustics Technical
Committee of the IEICE (2006-08). He is a member of the International
IWAENC Standing committee and a member of the International ICA
Steering Committee. He was the General Chair of WASPAA2007, the
General Chair of IWAENC2003, the Organizing Chair of ICA2003, and is
the designated Plenary Chair of ICASSP2012.

Dr. Makino is an IEEE SPS Distinguished Lecturer (2009-10), an IEEE
Fellow, an IEICE Fellow, a council member of the ASJ, and a member of 
EURASIP. 

主催：IEEE Signal Processing Society Japan Chapter
協賛：電子情報通信学会応用音響研究会，日本音響学会電気音響研究会

       問い合わせ先: 梶川嘉延 (Secretary)
            564-8680 吹田市山手町3-3-35
            関西大学 システム理工学部 電気電子情報工学科
            Tel: 06-6368-1121    Fax: 06-6330-3770
            E-mail : kaji  kansai-u.ac.jp