Youji Iiguni

According to our database, Youji Iiguni authored at least 80 papers between 1985 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

Complex-Domain Pitch Estimation Algorithm for Narrowband Speech Signals.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

IEEE ACM Trans. Audio Speech Lang. Process., 2023

2022

Artificial Bandwidth Extension for Lower Bandwidth Using Sinusoidal Synthesis based on First Formant Location.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2022

Speech Bandwidth Extension Using Data Hiding Based on Discrete Hartley Transform Domain.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

Circuits Syst. Signal Process., 2022

2021

Real-Time Distant Sound Source Suppression Using Spectral Phase Difference.

Kazuhiro Murakami, Arata Kawamura, Yoh-ichi Fujisaka, Nobuhiko Hiruma, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021

Phase Reconstruction for Artificial Bandwidth Extension toward Musical Instrument Sound Signal.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

Proceedings of the 29th European Signal Processing Conference, 2021

Pitch Estimation Algorithm for Narrowband Speech Signal using Phase Differences between Harmonics.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2021

2020

An Efficient Image to Sound Mapping Method Preserving Speech Spectral Envelope.

Yuya Hosoda, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

2019

Low-Light Image Enhancement via Adaptive Shape and Texture Prior.

Kazuki Kurihara, Hiromi Yoshida, Youji Iiguni

Proceedings of the 15th International Conference on Signal-Image Technology & Internet-Based Systems, 2019

Dehazing with Recovery Level Map: Suppressing Over-Enhancement and Residual Haze.

Kentaro Iwamoto, Hiromi Yoshida, Youji Iiguni

Proceedings of the 15th International Conference on Signal-Image Technology & Internet-Based Systems, 2019

Distant Sound Source Suppression Based on Multichannel Nonnegative Matrix Factorization with Bases Distance Maximization Penalty.

Kazuma Takiguchi, Arata Kawamura, Youji Iiguni

Proceedings of the 2019 International Symposium on Intelligent Signal Processing and Communication Systems, 2019

Adaptive line enhancer-based beat noise suppression for FM radio in motor vehicle.

Kosuke Hasada, Arata Kawamura, Youji Iiguni

Proceedings of the 2019 International Symposium on Intelligent Signal Processing and Communication Systems, 2019

Alveolar fricative consonants detection with easily interpretable feature for speech training.

Kouki Furuya, Arata Kawamura, Youji Iiguni

Proceedings of the 2019 International Symposium on Intelligent Signal Processing and Communication Systems, 2019

2018

Effective Sound Source Separation Using Single Voice Activity Segments for Binaural Sound.

Wataru Noguchi, Arata Kawamura, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

Distant Sound Suppression Using Spectral Phase Variance for Two Channel Blind Source Separation.

Kazuhiro Murakami, Arata Kawamura, Youichi Fujisaka, Nobuhiko Hiruma, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

2017

An Efficient Image to Sound Mapping Method Using Speech Spectral Phase and Multi-Column Image.

Arata Kawamura, Hiro Igarashi, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017

Automatic pencil sketch generation by using canny edges.

Ryota Okawa, Hiromi Yoshida, Youji Iiguni

Proceedings of the Fifteenth IAPR International Conference on Machine Vision Applications, 2017

Impulsive noise suppression using interpolated zero phase signal.

Ryo Takehara, Arata Kawamura, Youji Iiguni

Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

Residual drum sound estimation for RPCA singing voice extraction.

Shiori Mikami, Arata Kawamura, Youji Iiguni

Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

2015

Adaptive feedback canceller with howling detection for hearing aids.

Kakeru Kashima, Arata Kawamura, Masahiro Sunohara, Kazuki Nishiyama, Nobuhiko Hiruma, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

Impact noise suppression using spectral phase estimation.

Kohei Fujikura, Arata Kawamura, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

2014

A Zero Phase Noise Reduction Method with Damped Oscillation Estimator.

Sayuri Kohmura, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

Noise robust speaker identification by dividing MFCC.

Kizuki Matsumoto, Noboru Hayasaka, Youji Iiguni

Proceedings of the 6th International Symposium on Communications, 2014

Robust voice activity detection using selectively energy features.

Junichiro Wakasugi, Noboru Hayasaka, Youji Iiguni

Proceedings of the 21st IEEE International Conference on Electronics, Circuits and Systems, 2014

Noise robust speech recognition selectively using noise adapted HMM set.

Hiroyuki Sakuno, Noboru Hayasaka, Youji Iiguni

Proceedings of the 21st IEEE International Conference on Electronics, Circuits and Systems, 2014

2013

A Comb Filter with Adaptive Notch Gain and Bandwidth.

Yosuke Sugiura, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013

An Adaptation Method for Morphological Opening Filters with a Smoothness Penalty on Structuring Elements.

Makoto Nakashizuka, Yu Ashihara, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013

An efficient zero phase noise reduction method for impact noise with damped oscillation.

Sayuri Kohmura, Arata Kawamura, Youji Iiguni

Proceedings of the IEEE International Conference on Acoustics, 2013

2012

Stationary and Non-stationary Wide-Band Noise Reduction Using Zero Phase Signal.

Weerawut Thanhikam, Yuki Kamamori, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

Speech Enhancement Based on Real-Speech PDF in Various Narrow SNR Intervals.

Weerawut Thanhikam, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

An Adaptive Comb Filter with Flexible Notch Gain.

Yosuke Sugiura, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

A Comb Filter Design Method Using Linear Phase FIR Filter.

Yosuke Sugiura, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

Convergence Vectors in System Identification with an NLMS Algorithm for Sinusoidal Inputs.

Yuki Satomi, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

Supervised Single-Channel Speech Separation via Sparse Decomposition Using Periodic Signal Models.

Makoto Nakashizuka, Hiroyuki Okumura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

Feature reduction using PCA with multi-condition training for practical speech recognition systems.

Yudai Kaneda, Noboru Hayasaka, Youji Iiguni

Proceedings of the International Symposium on Communications and Information Technologies, 2012

Experimental evaluation of structure of garbage model generated from in-vocabulary words.

Shuichiro Hirota, Noboru Hayasaka, Youji Iiguni

Proceedings of the International Symposium on Communications and Information Technologies, 2012

A comb filter with adaptive notch gain for periodic noise reduction.

Yosuke Sugiura, Arata Kawamura, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

An adaptive MAP speech spectral amplitude estimator combined with a zero phase noise suppressor.

Sayuri Kohmura, Arata Kawamura, Youji Iiguni

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

2011

A High Speech Quality Distance-Based Howling Canceller with Adaptive Cascade Notch Filter and Silent Pilot Signal.

Akira Sogami, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011

Noise suppression based on replacement of zero phase signal.

Weerawut Thanhikam, Arata Kawamura, Youji Iiguni

Proceedings of the International Symposium on Intelligent Signal Processing and Communications Systems, 2011

A speech enhancement method using adaptive speech PDF.

Weerawut Thanhikam, Arata Kawamura, Youji Iiguni

Proceedings of the International Symposium on Intelligent Signal Processing and Communications Systems, 2011

Morphological regularization for adaptation of image opening.

Makoto Nakashizuka, Yu Ashihara, Youji Iiguni

Proceedings of the 19th European Signal Processing Conference, 2011

2010

Moment Invariants of the Weighted Image.

Ken-ichi Sakaue, Youji Iiguni

IEICE Trans. Inf. Syst., 2010

Learning of structuring elements for morphological image model with a sparsity prior.

Makoto Nakashizuka, Shinji Takenaka, Youji Iiguni

Proceedings of the International Conference on Image Processing, 2010

A speech spectral estimator using adaptive speech probability density function.

Arata Kawamura, Weerawut Thanhikam, Youji Iiguni

Proceedings of the 18th European Signal Processing Conference, 2010

2009

Improvement of Speech Quality in Distance-Based Howling Canceller.

Akira Sogami, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

Shift-Invariant Sparse Image Representations Using Tree-Structured Dictionaries.

Makoto Nakashizuka, Hidenari Nishiura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

Sparse image representations with shift-invariant tree-structured dictionaries.

Makoto Nakashizuka, Hidenari Nishiura, Youji Iiguni

Proceedings of the International Conference on Image Processing, 2009

Single-channel speech separation using a sparse periodic decomposition.

Makoto Nakashizuka, Hiroyuki Okumura, Youji Iiguni

Proceedings of the 17th European Signal Processing Conference, 2009

2008

Image Enlargement by Nonlinear Frequency Extrapolation with Morphological Operators.

Masayuki Shimizu, Makoto Nakashizuka, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

Special Section on Signal Processing.

Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

A sparse periodic decomposition and its application to speech representation.

Makoto Nakashizuka, Hiroyuki Okumura, Youji Iiguni

Proceedings of the 2008 16th European Signal Processing Conference, 2008

2007

Image restoration from a downsampled image by using the DCT.

Yoshinori Abe, Youji Iiguni

Signal Process., 2007

Speech Enhancement Based on MAP Estimation Using a Variable Speech Distribution.

Yuta Tsukamoto, Arata Kawamura, Youji Iiguni

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007

Fast Computation of the High Resolution Image Restoration by using the Discrete Cosine Transform.

Yoshinori Abe, Youji Iiguni

Proceedings of the IEEE International Conference on Acoustics, 2007

2006

Data compression of nonlinear time series using a hybrid linear/nonlinear predictor.

Tetsuya Izumi, Youji Iiguni

Signal Process., 2006

Fast computation of RBF coefficients using FFT.

Yoshinori Abe, Youji Iiguni

Signal Process., 2006

An Adaptive Algorithm with Variable Step-Size for Parallel Notch Filter.

Arata Kawamura, Youji Iiguni, Yoshio Itoh

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006

Adaptive DOA Estimation Using a Database of PARCOR Coefficients.

Eiji Mochida, Youji Iiguni

EURASIP J. Adv. Signal Process., 2006

2005

A Noise Reduction Method Based on Linear Prediction with Variable Step-Size.

Arata Kawamura, Youji Iiguni, Yoshio Itoh

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005

Adaptive Peak Frequency Estimation Using a Database of PARCOR Coefficients.

Tetsuya Watanabe, Youji Iiguni

EURASIP J. Adv. Signal Process., 2005

Adaptive DOA estimation using a database of eigenvectors.

Eiji Mochida, Youji Iiguni

Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005

2004

Radial basis function network with bias compensation for regularly sampled inputs.

Norifumi Kitaura, Youji Iiguni

Signal Process., 2004

A fast regularization parameter selection for regularly sampled 2D inputs.

Kaoru Inoue, Youji Iiguni

Int. J. Syst. Sci., 2004

An Approximate Algorithm for Robust Adaptive Beamforming.

Tomoaki Yoshida, Youji Iiguni

EURASIP J. Adv. Signal Process., 2004

Nonlinear Image Restoration Using a Radial Basis Function Network.

Keiji Icho, Youji Iiguni, Hajime Maeda

EURASIP J. Adv. Signal Process., 2004

DOA estimation based on the database retrieval technique with nonuniform quantization and clustering.

Ivan Setiawan, Youji Iiguni

Digit. Signal Process., 2004

2003

Image restoration using the RBF network with variable regularization parameters.

Kaoru Inoue, Youji Iiguni, Hajime Maeda

Neurocomputing, 2003

2002

2-D DOA estimation method using Zernike moments.

Nobuhiro Kanaya, Youji Iiguni, Hajime Maeda

Signal Process., 2002

1999

Image interpolation for progressive transmission by using radial basis function networks.

T. Sigitani, Youji Iiguni, Hajime Maeda

IEEE Trans. Neural Networks, 1999

Online Recognition of Handwritten Hiragana Characters Based Upon a Complex Autoregressive Model.

Yuichi Nakatani, Daisuke Sasaki, Youji Iiguni, Hajime Maeda

IEEE Trans. Pattern Anal. Mach. Intell., 1999

1997

A nonlinear adaptive estimation method based on local approximation.

Youji Iiguni, Isao Kawamoto, Norihiko Adachi

IEEE Trans. Signal Process., 1997

1996

Hierarchical image coding via cerebellar model arithmetic computers.

Youji Iiguni

IEEE Trans. Image Process., 1996

1992

A real-time learning algorithm for a multilayered neural network based on the extended Kalman filter.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

IEEE Trans. Signal Process., 1992

1991

A nonlinear regulator design in the presence of system uncertainties using multilayered neural network.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

IEEE Trans. Neural Networks, 1991

1990

A regulator design method using multi-layered neural networks.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

Proceedings of the IJCNN 1990, 1990

1988

Block implementation of a recursive least squares estimation algorithm.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

IEEE Trans. Acoust. Speech Signal Process., 1988

1986

An LDU decomposition algorithm for a block Toeplitz matrix having a parallel and pipelined computing structure.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

Inf. Sci., 1986

Rounding error analysis of the triangular lattice and escalator algorithms.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

Proceedings of the IEEE International Conference on Acoustics, 1986

1985

Convergence properties of simplified gradient adaptive lattice algorithms.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

IEEE Trans. Acoust. Speech Signal Process., 1985

A method of eliminating a bias in the normalized circular lattice algorithm.

Youji Iiguni, Hideaki Sakai, Hidekatsu Tokumaru

IEEE Trans. Acoust. Speech Signal Process., 1985