Masakiyo FUJIMOTO


Integration of Spatial Cue-Based Noise Reduction and Speech Model-Based Source Restoration for Real Time Speech Enhancement
Tomoko KAWASE Kenta NIWA Masakiyo FUJIMOTO Kazunori KOBAYASHI Shoko ARAKI Tomohiro NAKATANI 
Publication:   
Publication Date: 2017/05/01
Vol. E100-A  No. 5  pp. 1127-1136
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
microphone arraybeamforming (BF)power spectral density (PSD) estimationGaussian mixture modelWiener filtering
 Summary | Full Text:PDF(2.1MB)

Acoustic Event Detection in Speech Overlapping Scenarios Based on High-Resolution Spectral Input and Deep Learning
Miquel ESPI Masakiyo FUJIMOTO Tomohiro NAKATANI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/10/01
Vol. E98-D  No. 10  pp. 1799-1807
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
acoustic event detection/recognitionhigh-resolution featurespectrogram patchcommunication scene understanding
 Summary | Full Text:PDF(1.5MB)

Noise Robust Voice Activity Detection Based on Switching Kalman Filter
Masakiyo FUJIMOTO Kentaro ISHIZUKA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/03/01
Vol. E91-D  No. 3  pp. 467-477
Type of Manuscript:  Special Section PAPER (Special Section on Robust Speech Processing in Realistic Environments)
Category: Voice Activity Detection
Keyword: 
voice activity detectionstatistical modelswitching Kalman filternoisy environmentCENSREC-1-C
 Summary | Full Text:PDF(1.1MB)

CENSREC-3: An Evaluation Framework for Japanese Speech Recognition in Real Car-Driving Environments
Masakiyo FUJIMOTO Kazuya TAKEDA Satoshi NAKAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/11/01
Vol. E89-D  No. 11  pp. 2783-2793
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
noisy speech recognitioncommon evaluation frameworkin-car speech databaseCENSREC-3
 Summary | Full Text:PDF(1.1MB)

A Non-stationary Noise Suppression Method Based on Particle Filtering and Polyak Averaging
Masakiyo FUJIMOTO Satoshi NAKAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/03/01
Vol. E89-D  No. 3  pp. 922-930
Type of Manuscript:  Special Section PAPER (Special Section on Statistical Modeling for Speech Processing)
Category: Speech Recognition
Keyword: 
noisy speech recognitionnon-stationary noisesequential estimationparticle filterPolyak averaging and feedback
 Summary | Full Text:PDF(1.8MB)

AURORA-2J: An Evaluation Framework for Japanese Noisy Speech Recognition
Satoshi NAKAMURA Kazuya TAKEDA Kazumasa YAMAMOTO Takeshi YAMADA Shingo KUROIWA Norihide KITAOKA Takanobu NISHIURA Akira SASOU Mitsunori MIZUMACHI Chiyomi MIYAJIMA Masakiyo FUJIMOTO Toshiki ENDO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 535-544
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Speech Corpora and Related Topics
Keyword: 
noisy speech recognitionevaluation platformperformance differences over speakersevaluation categories
 Summary | Full Text:PDF(1.7MB)