Akira IWATA


Design of a Compact Sound Localization Device on a Stand-Alone FPGA-Based Platform
Mauricio KUGLER Teemu TOSSAVAINEN Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/11/01
Vol. E99-D  No. 11  pp. 2682-2693
Type of Manuscript:  PAPER
Category: Computer System
Keyword: 
sound localizationtime difference of arrivalcompact devicereal-timefield-programmable gate arrays
 Summary | Full Text:PDF(2.6MB)

Real-Time Hardware Implementation of a Sound Recognition System with In-Field Learning
Mauricio KUGLER Teemu TOSSAVAINEN Miku NAKATSU Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/07/01
Vol. E99-D  No. 7  pp. 1885-1894
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
environmental sound recognitionbinary featuresfield-programmable gate arraysin-field learning
 Summary | Full Text:PDF(5MB)

An Approach for Sound Source Localization by Complex-Valued Neural Network
Hirofumi TSUZUKI Mauricio KUGLER Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/10/01
Vol. E96-D  No. 10  pp. 2257-2265
Type of Manuscript:  PAPER
Category: Biocybernetics, Neurocomputing
Keyword: 
sound source directioncomplex-valued neural networksbinaural sound localizationamplitude-phase function
 Summary | Full Text:PDF(2.1MB)

CombNET-III with Nonlinear Gating Network and Its Application in Large-Scale Classification Problems
Mauricio KUGLER Susumu KUROYANAGI Anto Satriyo NUGROHO Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/02/01
Vol. E91-D  No. 2  pp. 286-295
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
large-scale classification problemssupport vector machinesgating networksdivide-and-conquer
 Summary | Full Text:PDF(532.3KB)

CombNET-III: A Support Vector Machine Based Large Scale Classifier with Probabilistic Framework
Mauricio KUGLER Susumu KUROYANAGI Anto Satriyo NUGROHO Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/09/01
Vol. E89-D  No. 9  pp. 2533-2541
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
large scale classification problemssupport vector machinesprobabilistic frameworkdivide-and-conquer
 Summary | Full Text:PDF(584.8KB)

A Solution for Imbalanced Training Sets Problem by CombNET-II and Its Application on Fog Forecasting
Anto Satriyo NUGROHO Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/07/01
Vol. E85-D  No. 7  pp. 1165-1174
Type of Manuscript:  PAPER
Category: Biocybernetics, Neurocomputing
Keyword: 
neural networkCombNET-IIself-growing algorithmimbalanced training sets problemfog forecasting
 Summary | Full Text:PDF(962.3KB)

Robust Method for Recovering Sign of Gaussian Curvature from Multiple Shading Images
Shinji FUKUI Yuji IWAHORI Robert J. WOODHAM Kenji FUNAHASHI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/12/01
Vol. E84-D  No. 12  pp. 1633-1641
Type of Manuscript:  Special Section PAPER (Special Issue on Machine Vision Applications)
Category: 
Keyword: 
Gaussian curvatureshape representation and recoveryphysics-based visionprincipal component analysis
 Summary | Full Text:PDF(3.7MB)

Hand Gesture Recognition Using T-CombNET: A New Neural Network Model
Marcus Vinicius LAMAR Md. Shoaib BHUIYAN Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/11/25
Vol. E83-D  No. 11  pp. 1986-1995
Type of Manuscript:  PAPER
Category: Biocybernetics, Neurocomputing
Keyword: 
neural networkslocal model neural networksgesture recognitionsign language recognitioncomputer vision
 Summary | Full Text:PDF(901KB)

A Character-Based Postprocessing System for Handwritten Japanese Address Recognition
Keiji YAMANAKA Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1999/02/25
Vol. E82-D  No. 2  pp. 468-474
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
neural networkLexiconhandwritten kanjicharacter recognitionword recognitionpostprocessing
 Summary | Full Text:PDF(232.6KB)

Classification of Surface Curvature from Shading Images Using Neural Network
Yuji IWAHORI Shinji FUKUI Robert J. WOODHAM Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/08/25
Vol. E81-D  No. 8  pp. 889-900
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
shape representation and recoveryphysics-based visionphotometric stereoradial basis function neural networkcurvature
 Summary | Full Text:PDF(1.2MB)

Handwritten Postal Code Recognition by Neural Network --A Comparative Study --
Ahmad Fadzil ARIF Hidekazu TAKAHASHI Akira IWATA Toshio TSUTSUMIDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/05/25
Vol. E79-D  No. 5  pp. 443-449
Type of Manuscript:  Special Section PAPER (Special Issue on Character Recognition and Document Understanding)
Category: Comparative Study
Keyword: 
handwritten numeral recognitionfeature extractionneural network
 Summary | Full Text:PDF(537.3KB)

Edge Detection Using Neural Network for Non-uniformly Illuminated Images
Md. Shoaib BHUIYAN Hiroshi MATSUO Akira IWATA Hideo FUJIMOTO Makoto SATOH 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/02/25
Vol. E79-D  No. 2  pp. 150-160
Type of Manuscript:  PAPER
Category: Bio-Cybernetics and Neurocomputing
Keyword: 
neural networkedge detectionline process energy function coefficientsimage processingedge growth
 Summary | Full Text:PDF(1.2MB)

Auditory Pulse Neural Network Model to Extract the Inter-Aural Time and Level Difference for Sound Localization
Susumu KUROYANAGI Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/04/25
Vol. E77-D  No. 4  pp. 466-474
Type of Manuscript:  Special Section PAPER (Special Issue on Neurocomputing)
Category: Audition
Keyword: 
neural networkpulse neuron modelauditory nervous systemsuperior olivessound localization
 Summary | Full Text:PDF(784.4KB)

Data Compression of Long Time ECG Recording Using BP and PCA Neural Networks
Yasunori NAGASAKA Akira IWATA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/12/25
Vol. E76-D  No. 12  pp. 1434-1442
Type of Manuscript:  Special Section PAPER (Special Section on ECG Data Compression)
Category: 
Keyword: 
electrocardiogramdata compressionneural networkback propagationprincipal component analysis
 Summary | Full Text:PDF(777.3KB)