Tetsunori KOBAYASHI


Class-Distance-Based Discriminant Analysis and Its Application to Supervised Automatic Age Estimation
Tetsuji OGAWA Kazuya UEKI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/08/01
Vol. E94-D  No. 8  pp. 1683-1689
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
FDALFDACDDALCDDAdimensionality reductionautomatic age estimation
 Summary | Full Text:PDF(394.5KB)

Speech Enhancement Using a Square Microphone Array in the Presence of Directional and Diffuse Noise
Tetsuji OGAWA Shintaro TAKADA Kenzo AKAGIRI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Vol. E93-A  No. 5  pp. 926-935
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
directional noise reductiondiffuse noise reductionsquare microphone arrayspeech recognitionmobile devices
 Summary | Full Text:PDF(2.1MB)

Influence of Lombard Effect: Accuracy Analysis of Simulation-Based Assessments of Noisy Speech Recognition Systems for Various Recognition Conditions
Tetsuji OGAWA Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/11/01
Vol. E92-D  No. 11  pp. 2244-2252
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
Lombard effectsimulationassessmentnoisy speech recognition
 Summary | Full Text:PDF(443.7KB)

Ears of the Robot: Direction of Arrival Estimation Based on Pattern Recognition Using Robot-Mounted Microphones
Naoya MOCHIKI Tetsuji OGAWA Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/05/01
Vol. E91-D  No. 5  pp. 1522-1530
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
robot auditiondirection-of-arrival estimationpattern recognitionmultiple signal classificationcrosspower-spectrum phase
 Summary | Full Text:PDF(489.7KB)

Mutual Information Based Dynamic Integration of Multiple Feature Streams for Robust Real-Time LVCSR
Shoei SATO Akio KOBAYASHI Kazuo ONOE Shinichi HOMMA Toru IMAI Tohru TAKAGI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/03/01
Vol. E91-D  No. 3  pp. 815-824
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
speech recognitionstream integrationentropymutual informationactive hypotheses
 Summary | Full Text:PDF(777.1KB)

Ears of the Robot: Three Simultaneous Speech Segregation and Recognition Using Robot-Mounted Microphones
Naoya MOCHIKI Tetsuji OGAWA Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/09/01
Vol. E90-D  No. 9  pp. 1465-1468
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
robot auditionsound source segregationspeech recognitionSAFIAspectral subtraction
 Summary | Full Text:PDF(772.7KB)

Fusion-Based Age-Group Classification Method Using Multiple Two-Dimensional Feature Extraction Algorithms
Kazuya UEKI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/06/01
Vol. E90-D  No. 6  pp. 923-934
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
2DPCA2DLDAage-group classificationface recognitionpattern recognitionz-scoremin-max normalizationsum ruleproduct rulemax rulemin ruleclassification combination
 Summary | Full Text:PDF(1.1MB)

Hybrid Voice Conversion of Unit Selection and Generation Using Prosody Dependent HMM
Tadashi OKUBO Ryo MOCHIZUKI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/11/01
Vol. E89-D  No. 11  pp. 2775-2782
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
voice conversionspeech synthesisHMMunit selectionMLLR
 Summary | Full Text:PDF(419.3KB)

Genetic Algorithm Based Optimization of Partly-Hidden Markov Model Structure Using Discriminative Criterion
Tetsuji OGAWA Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/03/01
Vol. E89-D  No. 3  pp. 939-945
Type of Manuscript:  Special Section PAPER (Special Section on Statistical Modeling for Speech Processing)
Category: Speech Recognition
Keyword: 
acoustic modelhidden Markov modelpartly-hidden Markov modelweighted likelihood-ratio maximization criteriongenetic algorithmlecture talk speech recognition
 Summary | Full Text:PDF(602.5KB)

Extension of Hidden Markov Models for Multiple Candidates and Its Application to Gesture Recognition
Yosuke SATO Tetsuji OGAWA Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/06/01
Vol. E88-D  No. 6  pp. 1239-1247
Type of Manuscript:  PAPER
Category: Image Recognition, Computer Vision
Keyword: 
gesture recognitionHidden Markov Modelmultiple candidates of feature vectormobile robot
 Summary | Full Text:PDF(485.5KB)

A Low-Band Spectrum Envelope Reconstruction Method for PSOLA-Based F0 Modification
Ryo MOCHIZUKI Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/10/01
Vol. E87-D  No. 10  pp. 2426-2429
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
F0 modificationspectrum envelopePSOLAspeech synthesis
 Summary | Full Text:PDF(253.8KB)

Conversation Robot Participating in Group Conversation
Yosuke MATSUSAKA Tsuyoshi TOJO Tetsunori KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/01/01
Vol. E86-D  No. 1  pp. 26-36
Type of Manuscript:  INVITED PAPER (Special Issue on the 2001 IEICE Excellent Paper Award)
Category: 
Keyword: 
spoken dialogue systemgroup conversationface-to-face conversation systemmultimodal system
 Summary | Full Text:PDF(791.3KB)

High Quality Synthetic Speech Generation Using Synchronized Oscillators
Kenji HASHIMOTO Takemi MOCHIDA Yasuaki SATO Tetsunori KOBAYASHI Katsuhiko SHIRAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/11/25
Vol. E76-A  No. 11  pp. 1949-1956
Type of Manuscript:  Special Section PAPER (Special Section on Speech Synthesis: Current Technologies and Thier Application)
Category: 
Keyword: 
speech synthesissinusoidal modelnon-linear differential equationpitch control
 Summary | Full Text:PDF(652.3KB)

Phrase Recognition in Conversational Speech Using Prosodic and Phonemic Information
Shigeki OKAWA Takashi ENDO Tetsunori KOBAYASHI Katsuhiko SHIRAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/01/25
Vol. E76-D  No. 1  pp. 44-50
Type of Manuscript:  Special Section PAPER (Special Issue on Speech and Discourse Processing in Dialogue Systems)
Category: 
Keyword: 
phrase recognitionprosodyDP matchinginformation criteria
 Summary | Full Text:PDF(548.4KB)

Design and Creation of Speech and Text Corpora of Dialogue
Satoru HAYAMIZU Shuichi ITAHASHI Tetsunori KOBAYASHI Toshiyuki TAKEZAWA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/01/25
Vol. E76-D  No. 1  pp. 17-22
Type of Manuscript:  INVITED PAPER (Special Issue on Speech and Discourse Processing in Dialogue Systems)
Category: 
Keyword: 
dialoguespeech corpustext corpus
 Summary | Full Text:PDF(633KB)