Hiroshi G. Okuno

教授(任期付)

  • 3883 Citations
  • 29 h-Index
1974 …2019
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Research Output 1974 2019

  • 3883 Citations
  • 29 h-Index
  • 273 Conference contribution
  • 105 Article
  • 9 Chapter
  • 1 Editorial
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Article
2018
3 Citations (Scopus)

A spatiotemporal analysis of acoustic interactions between great reed warblers (Acrocephalus arundinaceus) using microphone arrays and robot audition software HARK

Suzuki, R., Matsubayashi, S., Saito, F., Murate, T., Masuda, T., Yamamoto, K., Kojima, R., Nakadai, K. & Okuno, H. G., 2018 Jan 1, In : Ecology and Evolution. 8, 1, p. 812-825 14 p.

Research output: Contribution to journalArticle

spatiotemporal analysis
robots
song
animal communication
acoustics
1 Citation (Scopus)

Assessment of MUSIC-based noise-robust sound source localization with active frequency range filtering

Hoshiba, K., Nakadai, K., Kumon, M. & Okuno, H. G., 2018 Jun 1, In : Journal of Robotics and Mechatronics. 30, 3, p. 426-435 10 p.

Research output: Contribution to journalArticle

Acoustic noise
Acoustic waves
Processing
Disasters
Microphones
6 Citations (Scopus)

Speech Enhancement Based on Bayesian Low-Rank and Sparse Decomposition of Multichannel Magnitude Spectrograms

Bando, Y., Itoyama, K., Konyo, M., Tadokoro, S., Nakadai, K., Yoshii, K., Kawahara, T. & Okuno, H. G., 2018 Feb 1, In : IEEE/ACM Transactions on Audio Speech and Language Processing. 26, 2, p. 215-230 16 p.

Research output: Contribution to journalArticle

Speech Enhancement
Spectrogram
Speech enhancement
spectrograms
Microphones
2017
14 Citations (Scopus)

Design of UAV-embedded microphone array system for sound source localization in outdoor environments

Hoshiba, K., Washizaki, K., Wakabayashi, M., Ishiki, T., Kumon, M., Bando, Y., Gabriel, D., Nakadai, K. & Okuno, H. G., 2017 Nov 3, In : Sensors (Switzerland). 17, 11, 2535.

Research output: Contribution to journalArticle

Sound Localization
pilotless aircraft
Microphones
Unmanned aerial vehicles (UAV)
microphones
5 Citations (Scopus)

Development, deployment and applications of robot audition open source software HARK

Nakadai, K., Okuno, H. G. & Mizumoto, T., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 16-25 10 p.

Research output: Contribution to journalArticle

Audition
Robots
Acoustic waves
Source separation
Microphones
1 Citation (Scopus)

Development of a robotic pet using sound source localization with the HARK robot audition system

Suzuki, R., Takahashi, T. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 146-153 8 p.

Research output: Contribution to journalArticle

Audition
Robotics
Acoustic waves
Robots
Human robot interaction
4 Citations (Scopus)

Harkbird: Exploring acoustic interactions in bird communities using a microphone array

Suzuki, R., Matsubayashi, S., Hedley, R. W., Nakadai, K. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 213-223 11 p.

Research output: Contribution to journalArticle

Birds
Audition
Microphones
Acoustics
Robots
1 Citation (Scopus)

Influence of different impulse response measurement signals on MUSIC-based sound source localization

Suzuki, T., Otsuka, H., Akahori, W., Bando, Y. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 72-82 11 p.

Research output: Contribution to journalArticle

Impulse response
Acoustic waves
Acoustics
Transfer functions
Source separation
6 Citations (Scopus)

Low latency and high quality two-stage human-voice-enhancement system for a hose-shaped rescue robot

Bando, Y., Saruwatari, H., Ono, N., Makino, S., Itoyama, K., Kitamura, D., Ishimura, M., Takakusaki, M., Mae, N., Yamaoka, K., Matsui, Y., Ambe, Y., Konyo, M., Tadokoro, S., Yoshii, K. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 198-212 15 p.

Research output: Contribution to journalArticle

Hose
Robots
Microphones
Principal component analysis
Acoustic waves

Size effect on call properties of japanese tree frogs revealed by audio-processing technique

Aihara, I., Takeda, R., Mizumoto, T., Otsuka, T. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 247-254 8 p.

Research output: Contribution to journalArticle

Ecosystems
Independent component analysis
Audition
Processing
Mechanics
1 Citation (Scopus)

Swarm of sound-to-light conversion devices to monitor acoustic communication among small nocturnal animals

Mizumoto, T., Aihara, I., Otsuka, T., Awano, H. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 255-267 13 p.

Research output: Contribution to journalArticle

Animals
Acoustics
Acoustic waves
Communication
Biocommunications
1 Citation (Scopus)

Visualizing Phonotactic Behavior of Female Frogs in Darkness

Aihara, I., Bishop, P. J., Ohmer, M. E. B., Awano, H., Mizumoto, T., Okuno, H. G., Narins, P. M. & Hero, J. M., 2017 Dec 1, In : Scientific Reports. 7, 1, 10539.

Research output: Contribution to journalArticle

frogs
phonotaxis
Chloris
animals
Hylidae
2016
1 Citation (Scopus)

Call alternation between specific pairs of male frogs revealed by a sound-imaging method in their natural habitat

Aihara, I., Mizumoto, T., Awano, H. & Okuno, H. G., 2016, In : Unknown Journal. 08-12-September-2016, p. 2597-2601 5 p.

Research output: Contribution to journalArticle

frogs
habitats
Statistical tests
Alternation
alternations
7 Citations (Scopus)

Localizing bird songs using an open source robot audition system with a microphone array

Suzuki, R., Matsubayashi, S., Nakadai, K. & Okuno, H. G., 2016, In : Unknown Journal. 08-12-September-2016, p. 2626-2630 5 p.

Research output: Contribution to journalArticle

Microphone Array
birds
Birds
Audition
Microphones
2015
9 Citations (Scopus)
Mirrors
Robots
Neurons
Experiments
Temperature
103 Citations (Scopus)

Audio-visual speech recognition using deep learning

Noda, K., Yamaguchi, Y., Nakadai, K., Okuno, H. G. & Ogata, T., 2015 Jun 1, In : Applied Intelligence. 42, 4, p. 722-737 16 p.

Research output: Contribution to journalArticle

Hidden Markov models
Speech recognition
Labels
Signal to noise ratio
Neural networks
5 Citations (Scopus)

Automatic Speech Recognition for Mixed Dialect Utterances by Mixing Dialect Language Models

Hirayama, N., Yoshino, K., Itoyama, K., Mori, S. & Okuno, H. G., 2015 Feb 1, In : IEEE/ACM Transactions on Speech and Language Processing. 23, 2, p. 373-382 10 p., 7001195.

Research output: Contribution to journalArticle

Automatic Speech Recognition
Language Model
speech recognition
Speech recognition
dialect
2 Citations (Scopus)

Bayesian audio-to-score alignment based on joint inference of Timbre, Volume, Tempo, and note onset timings

Maezawa, A. & Okuno, H. G., 2015 Mar 27, In : Computer Music Journal. 39, 1, p. 74-87 14 p.

Research output: Contribution to journalArticle

Dynamical systems
Musical instruments
Reverberation
Inference
Onset
6 Citations (Scopus)

Beat Tracking for Interactive Dancing Robots

Oliveira, J. L., Ince, G., Nakamura, K., Nakadai, K., Okuno, H. G., Gouyon, F. & Reis, L. P., 2015 Dec 1, In : International Journal of Humanoid Robotics. 12, 4, 1550023.

Research output: Contribution to journalArticle

Robots
Audition
Speech recognition
Acoustics
Recovery
1 Citation (Scopus)

HMM-based attacks on Google’s ReCAPTCHA with continuous visual and audio symbols

Sano, S., Otsuka, T., Itoyama, K. & Okuno, H. G., 2015 Nov 15, In : Journal of Information Processing. 23, 6, p. 814-826 13 p.

Research output: Contribution to journalArticle

Hidden Markov models
Audio systems
Learning algorithms
Learning systems
Cracks
5 Citations (Scopus)

Posture estimation of hose-shaped robot by using active microphone array

Bando, Y., Otsuka, T., Mizumoto, T., Itoyama, K., Konyo, M., Tadokoro, S., Nakadai, K. & Okuno, H. G., 2015 Jan 2, In : Advanced Robotics. 29, 1, p. 35-49 15 p.

Research output: Contribution to journalArticle

Hose
Microphones
Robots
Loudspeakers
Reverberation
1 Citation (Scopus)

Preferential training of neurodynamical model based on predictability of target dynamics

Nishide, S., Nobuta, H., Okuno, H. G. & Ogata, T., 2015 May 3, In : Advanced Robotics. 29, 9, p. 587-596 10 p.

Research output: Contribution to journalArticle

Robots
Recurrent neural networks
Backpropagation
Experiments
End effectors
4 Citations (Scopus)

Toward a quizmaster robot for speech-based multiparty interaction

Nishimuta, I., Itoyama, K., Yoshii, K. & Okuno, H. G., 2015 Sep 17, In : Advanced Robotics. 29, 18, p. 1205-1219 15 p.

Research output: Contribution to journalArticle

Robots
Speech recognition
Microphones
Experiments
2014
29 Citations (Scopus)

Bayesian nonparametrics for microphone array processing

Otsuka, T., Ishiguro, K., Sawada, H. & Okuno, H. G., 2014, In : IEEE Transactions on Audio, Speech and Language Processing. 22, 2, p. 493-504 12 p.

Research output: Contribution to journalArticle

Array processing
Microphones
microphones
Acoustic waves
acoustics
Audition
Robustness (control systems)
Speech recognition
Robotics
Robots
10 Citations (Scopus)

Improved sound source localization in horizontal plane for binaural robot audition

Kim, U. H., Nakadai, K. & Okuno, H. G., 2014, In : Applied Intelligence. 42, 1, p. 63-74 12 p.

Research output: Contribution to journalArticle

Audition
Acoustic waves
Robots
Amplification
Time delay
8 Citations (Scopus)

Multichannel sound source dereverberation and separation for arbitrary number of sources based on Bayesian nonparametrics

Otsuka, T., Ishiguro, K., Yoshioka, T., Sawada, H. & Okuno, H. G., 2014 Dec 1, In : IEEE/ACM Transactions on Speech and Language Processing. 22, 12, p. 2218-2232 15 p., 6926796.

Research output: Contribution to journalArticle

Bayesian Nonparametrics
Uncertainty
Acoustic waves
uncertainty
Microphones
5 Citations (Scopus)

Nonparametric bayesian dereverberation of power spectrograms based on infinite-order autoregressive processes

Maezawa, A., Itoyama, K., Yoshii, K. & Okuno, H. G., 2014 Dec 1, In : IEEE/ACM Transactions on Speech and Language Processing. 22, 12, p. 1918-1930 13 p., 6894190.

Research output: Contribution to journalArticle

autoregressive processes
Spectrogram
Bayesian Nonparametrics
spectrograms
Autoregressive Process
22 Citations (Scopus)

Spatio-temporal dynamics in collective frog choruses examined by mathematical modeling and field observations

Aihara, I., Mizumoto, T., Otsuka, T., Awano, H., Nagira, K., Okuno, H. G. & Aihara, K., 2014 Jan 27, In : Scientific Reports. 4, 3891.

Research output: Contribution to journalArticle

frog
breeding site
modeling
simulation
imaging method
4 Citations (Scopus)
Robots
Sensors
Factor analysis
15 Citations (Scopus)

The MEI robot: Towards using motherese to develop multimodal emotional intelligence

Lim, A. & Okuno, H. G., 2014, In : IEEE Transactions on Autonomous Mental Development. 6, 2, p. 126-138 13 p., 6798757.

Research output: Contribution to journalArticle

Robots
Display devices
Controllers
Experiments
2013
21 Citations (Scopus)

A real-time super-resolution robot audition system that improves the robustness of simultaneous speech recognition

Nakamura, K., Nakadai, K. & Okuno, H. G., 2013 Aug 1, In : Advanced Robotics. 27, 12, p. 933-945 13 p.

Research output: Contribution to journalArticle

Audition
Speech recognition
Acoustic waves
Robots
Source separation
7 Citations (Scopus)

Improved binaural sound localization and tracking for unknown time-varying number of speakers

Kim, U. H. & Okuno, H. G., 2013 Jul, In : Advanced Robotics. 27, 15, p. 1161-1173 13 p.

Research output: Contribution to journalArticle

Acoustic waves
Robots
Correlation methods
Audition
Microphones
1 Citation (Scopus)
factor analysis
Blind source separation
permutations
Factor analysis
ambiguity

Robust multipitch analyzer against initialization based on latent harmonic allocation using overtone corpus

Sakaue, D., Itoyama, K., Ogata, T. & Okuno, H. G., 2013 Apr, In : Journal of Information Processing. 21, 2, p. 246-255 10 p.

Research output: Contribution to journalArticle

Musical instruments
Frequency estimation
2012
3 Citations (Scopus)

A multimodal tempo and beat-tracking system based on audiovisual information from live guitar performances

Itohara, T., Otsuka, T., Mizumoto, T., Lim, A., Ogata, T. & Okuno, H. G., 2012, In : Eurasip Journal on Audio, Speech, and Music Processing. 2012, 1, 6.

Research output: Contribution to journalArticle

Pattern matching
synchronism
Hough transforms
Optical flows
Trajectories
4 Citations (Scopus)

A musical robot that synchronizes with a coplayer using non-verbal cues

Lim, A., Mizumoto, T., Ogata, T. & Okuno, H. G., 2012, In : Advanced Robotics. 26, 3-4, p. 363-381 19 p.

Research output: Contribution to journalArticle

Robots
Visual communication
Synchronization
Agglomeration
Communication
5 Citations (Scopus)

Automated violin fingering transcription through analysis of an audio recording

Maezawa, A., Itoyama, K., Komatani, K., Ogata, T. & Okuno, H. G., 2012 Sep, In : Computer Music Journal. 36, 3, p. 57-72 16 p.

Research output: Contribution to journalArticle

Audio recordings
Transcription
Hidden Markov models
Ergonomics
Cost functions

Automatic allocation of training data for speech understanding based on multiple model combinations

Komatani, K., Nakano, M., Katsumaru, M., Funakoshi, K., Ogata, T. & Okuno, H. G., 2012 Sep, In : IEICE Transactions on Information and Systems. E95-D, 9, p. 2298-2307 10 p.

Research output: Contribution to journalArticle

Speech recognition
Statistical methods
7 Citations (Scopus)

Efficient blind dereverberation and echo cancellation based on independent component analysis for actual acoustic signals

Takeda, R., Nakadai, K., Takahashi, T., Komatani, K., Ogata, T. & Okuno, H. G., 2012, In : Neural Computation. 24, 1, p. 234-272 39 p.

Research output: Contribution to journalArticle

Acoustics
Costs and Cost Analysis
Fourier Analysis
Hand
Observation
20 Citations (Scopus)

Tool-body assimilation of humanoid robot using a neurodynamical system

Nishide, S., Tani, J., Takahashi, T., Okuno, H. G. & Ogata, T., 2012, In : IEEE Transactions on Autonomous Mental Development. 4, 2, p. 139-149 11 p., 6095595.

Research output: Contribution to journalArticle

Robots
Recurrent neural networks
Feature extraction
Self organizing maps
Brain
10 Citations (Scopus)
emotions
music
robots
Robots
Robotics
2011
18 Citations (Scopus)

A multi-expert model for dialogue and behavior control of conversational robots and agents

Nakano, M., Hasegawa, Y., Funakoshi, K., Takeuchi, J., Torii, T., Nakadai, K., Kanda, N., Komatani, K., Okuno, H. G. & Tsujino, H., 2011 Mar, In : Knowledge-Based Systems. 24, 2, p. 248-256 9 p.

Research output: Contribution to journalArticle

Robots
Robot
Switching models
Module
Charge
74 Citations (Scopus)

Blind separation and dereverberation of speech mixtures by joint optimization

Yoshioka, T., Nakatani, T., Miyoshi, M. & Okuno, H. G., 2011, In : IEEE Transactions on Audio, Speech and Language Processing. 19, 1, p. 69-84 16 p., 5428853.

Research output: Contribution to journalArticle

Blind source separation
Reverberation
optimization
reverberation
matrices
2 Citations (Scopus)

Classification of known and unknown environmental sounds based on self-organized space using a recurrent neural network

Zhang, Y., Ogata, T., Nishide, S., Takahashi, T. & Okuno, H. G., 2011, In : Advanced Robotics. 25, 17, p. 2127-2141 15 p.

Research output: Contribution to journalArticle

Recurrent neural networks
Acoustic waves
Robots
Hardware
13 Citations (Scopus)

Complex and transitive synchronization in a frustrated system of calling frogs

Aihara, I., Takeda, R., Mizumoto, T., Otsuka, T., Takahashi, T., Okuno, H. G. & Aihara, K., 2011 Mar 21, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 83, 3, 031913.

Research output: Contribution to journalArticle

frogs
synchronism
Synchronization
Time Series Analysis
Coupled Oscillators
22 Citations (Scopus)

Emergence of hierarchical structure mirroring linguistic composition in a recurrent neural network

Hinoshita, W., Arie, H., Tani, J., Okuno, H. G. & Ogata, T., 2011 May, In : Neural Networks. 24, 4, p. 311-320 10 p.

Research output: Contribution to journalArticle

Recurrent neural networks
Linguistics
Activation Analysis
Neurons
Chemical analysis
29 Citations (Scopus)

Lyric synchronizer: Automatic synchronization system between musical audio signals and lyrics

Fujihara, H., Goto, M., Ogata, J. & Okuno, H. G., 2011 Oct, In : IEEE Journal on Selected Topics in Signal Processing. 5, 6, p. 1252-1261 10 p., 5876296.

Research output: Contribution to journalArticle

Synchronization
Acoustic waves
Transcription
1 Citation (Scopus)

Machine audition technology that listens to multiple voiced speech at once

Okuno, H. G. & Nakadai, K., 2011, In : Journal of the Institute of Electrical Engineers of Japan. 131, 3, p. 159-163 5 p.

Research output: Contribution to journalArticle

Audition
8 Citations (Scopus)

Publisher's Note: Complex and transitive synchronization in a frustrated system of calling frogs

Aihara, I., Takeda, R., Mizumoto, T., Otsuka, T., Takahashi, T., Okuno, H. G. & Aihara, K., 2011 Apr 25, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 83, 4, 049903.

Research output: Contribution to journalArticle

frogs
synchronism
Synchronization