Masahito TOGAMI


Separation of Mass Spectra Based on Probabilistic Latent Component Analysis for Explosives Detection
Yohei KAWAGUCHI Masahito TOGAMI Hisashi NAGANO Yuichiro HASHIMOTO Masuyuki SUGIYAMA Yasuaki TAKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/09/01
Vol. E98-A  No. 9  pp. 1888-1897
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing for Sensing and Diagnosis)
Category: 
Keyword: 
mass spectrometryexplosives detectionnon-negative matrix factorizationprobabilistic latent component analysissparsity
 Summary | Full Text:PDF(4.2MB)

Mass Spectra Separation for Explosives Detection by Using an Attenuation Model
Yohei KAWAGUCHI Masahito TOGAMI Hisashi NAGANO Yuichiro HASHIMOTO Masuyuki SUGIYAMA Yasuaki TAKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/09/01
Vol. E98-A  No. 9  pp. 1898-1905
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing for Sensing and Diagnosis)
Category: 
Keyword: 
mass spectrometryexplosives detectionnon-negative matrix factorizationprobabilistic latent component analysis
 Summary | Full Text:PDF(1.9MB)

Multichannel Two-Stage Beamforming with Unconstrained Beamformer and Distortion Reduction
Masahito TOGAMI Yohei KAWAGUCHI Yasunari OBUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/04/01
Vol. E96-A  No. 4  pp. 749-761
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
beamformingmultichannel noise reductionreverberant environmentmicrophone array
 Summary | Full Text:PDF(1.5MB)

Stepwise Phase Difference Restoration Method for DOA Estimation of Multiple Sources
Masahito TOGAMI Yasunari OBUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3269-3281
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
DOA estimationphase differenceacoustic applicationsacoustic arrays
 Summary | Full Text:PDF(451.2KB)