Takuma OTSUKA

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Affiliation

Okuno-Ogata Lab. Graduate school of Informatics, Kyoto University, Japan.
Ph.D. Candidate, research fellow of Japan Society for Promotion of Science

Contact information

• E-mail: ohtsuka [at] kuis.kyoto-u.ac.jp (not otsuka)
• Postal address: 606-8365 Okuno-Ogata Lab. Engineering Building #10, Sakyo, Kyoto, Japan.

Research Interest

We are surrounded by audio sources such as speech of a man, music from a radio, or knocks on a door. They contain full of diversities and are interfering with each other. I am interested in the technology that enables computers to analyze these audio signals, or observations in a natural environment, based on signal processing and machine learning techniques.

• Application of Bayesian probabilistic models to microphone array processing Demo page Japanese audio
• Music audio signal processing, Co-player music robot capable of a musical ensemble with human musicians
• Measurement and analysis of frogs' inter-callings
• Analysis of human (singing) voice

Publications

• Peer-reviewed journal papers (1st author)
  1. Takuma Otsuka, Katsuhiko Ishiguro, Hiroshi Sawada, Hiroshi G. Okuno: "Bayesian Nonparametrics for Microphone Array Processing," IEEE Transactions on Audio, Speech and Language Processing, Vol. 22, No. 2, pp. 493-504, 2014. 10.1109/TASLP.2013.2294582
  2. Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno: "Real-Time Audio-to-Score Alignment using Particle Filter for Co-player Music Robots," EURASIP Journal of Advances in Signal Processing, Hindawi Pub., vol. 2011, Article ID 384651, 13 pages, 2011. doi:10.1155/2011/384651
  3. Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Voice-awareness control for a humanoid robot consistent with its body posture and movements," PALADYN Journal of Behavioral Robotics, Vol.1, No.1, pp. 80-88, 2010.
• Peer-reviewed journal papers (co-author)
  1. Kohei Nagira, Takuma Otsuka, Hiroshi G. Okuno: "Nonparametric Bayesian Sparse Factor Analysis for Frequency Domain Blind Source Separation without Permutation Ambiguity," EURASIP Journal on Audio, Speech, and Music Processing, in print.
  2. Tatsuhiko Itohara, Takuma Otsuka, Takeshi Muzumoto, Angelica Lim, Tetsuya Ogata, Hiroshi G. Okuno: "A multi-modal tempo and beat tracking system based on audio-visual information from live guitar performances," EURASIP Journal on Audio, Speech, and Music Processing, Published: 20 Jan. 2012. doi:10.1186/1687-4722-2012-6
  3. Angelica Lim, Takeshi Mizumoto, Takuma Otsuka, Louis-Kenzo Furuya, Tetsuya Ogata, Hiroshi G. Okuno: "Musical Robot Co-Player: Integrating Audio and Visual Cues for Real-time Synchronization with a Human Flutist (in Japanese)," IPSJ Journal, Vol. 52, No.12, pp.3599-3610, 2011.
  4. Takeshi Mizumoto, Ikkyu Aihara, Takuma Otsuka, Ryu Takeda, Kazuyuki Aihara, Hiroshi G. Okuno: "Sound Imaging of Nocturnal Animal Calls in Their Natural Habita," Journal of Comparative Physiology A, Accepted, 26 Apr. 2011. doi:10.1007/s00359-011-0652-7
  5. Ikkyu Aihara, Ryu Takeda, Takeshi Mizumoto, Takuma Otsuka, Toru Takahashi, Hiroshi G. Okuno, Kazuyuki Aihara: "Complex and transitive synchronization in a frustrated system of calling frogs," Physical Review E, Vol.83, Issue 3. 031913 (2011) [5 pages], 21 Mar. 2011. doi:10.1103/PhysRevE.83.031913
• Peer-reviewed conference papers (1st author)
  1. Takuma Otsuka, Katsuhiko Ishiguro, Hiroshi Sawada, Hiroshi G. Okuno: "Unified Auditory Functions based on Bayesian Topic Model," Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2012), pp.2370-2376, 2012.
  2. Takuma Otsuka, Katsuhiko Ishiguro, Hiroshi Sawada, Hiroshi G. Okuno: "Bayesian Unification of Sound Source Localization and Separation with Permutation Resolution," Proceedings of the Twenty-Sixth AAAI Conference on Artificial Intelligence (AAAI-12), pp.2038-2045, 2012.
     Supported by the Telecommunications Advancement Foundation.
  3. Takuma Otsuka, Kazuhiro Nakadai, Tetsuya Ogata, Hiroshi G. Okuno: "Incremental Bayesian Audio-to-Score Alignment with Flexible Harmonic Structure Models," Proceedings of 12th International Society for Musical Information Retrieval Conference (ISMIR-2011), pp. 525-530, 2011.
  4. Takuma Otsuka, Kazuhiro Nakadai, Tetsuya Ogata, Hiroshi G. Okuno: "Bayesian Extension of MUSIC for Sound Source Localization and Tracking," Proceedings of International Conference on Spoken Language Processing (Interspeech 2011), pp.3109-3112, (oral), 2011.
  5. Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno: "Two-level Synchronization using Particle Filter for Co-player Music Robots," Proceedings of IEEE/RSJ-2010 Workshop on Robots and Musical Expression, 2010.
  6. Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Design and Implementation of Two-level Synchronization for Interactive Music Robot," Proceeding of the Twenty-Fourth AAAI Conference on Artificial Intelligence (AAAI-10), pp.1238-1244, (acceptance rate 26.9%, 264/982) Mar.26, July 11-15, 2010, Atlanta, GA.
     Supported by International Information Science Foundation.
  7. Takuma Otsuka, Takeshi Mizumoto, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Music-ensemble robot that is capable of playing the theremin while listening to the accompanied music," Proceeding of the 23rd International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2010), , LNAI 6096, 102-112, Cordoba, Spain, June 1-4, 2010.
     Best Paper Award. Supported by NEC C&C Foundation. NEC C&C Young Researcher Paper Award 2010.
  8. Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Voice quality manipulation for humanoid robots consistent with their head movements," Proceedings of IEEE-RAS Interanational Conference on Humanoid Robots (Humanoids 2009), pp.604-609, IEEE, Paris, Dec. 7-10, 2009.
  9. Takuma Otsuka, Kazumasa Murata, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Incremental Polyphonic Audio to Score Alignment using Beat Tracking for Singer Robots (Invited paper)," Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2009), pp.2289-2296, IEEE, RSJ, St. Louis, 12-14 (13) Oct. 2009
• Peer-reviewed conference papers (co-author)
  1. Shotaro Sano, Takuma Otsuka, Hiroshi G. Okuno: "Solving Google's Continuous Audio CAPTCHA with HMM-based Automatic Speech Recognition," Advances in Information and Computer Security, Proceedings of the 8th International Workshop on Security, Lecture Notes in Computer Science, Vol. 8231, 2013. Best Paper Award.
  2. YangYang Huang, Takuma Otsuka, Hiroshi G. Okuno: "A Speaker Dialization System with Robust Speaker Localization and Voice Activity Detection," Comtemprary Challenges and solutions in Applied Artificial Intelligence, pp. 77-82, Studies in Computational Intelligence, Vol. 489, 2013.
  3. Daichi Sakaue, Takuma Otsuka, Katsutoshi Itoyama, Hiroshi G. Okuno: "INITIALIZATION-ROBUST BAYESIAN MULTIPITCH ANALYZER BASED ON PSYCHOACOUSTICAL AND MUSICAL CRITERIA," Proceedings of 2013 International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013), SLP-P5.7, pp.8540-8544, 2013.
  4. Kohei Nagira, Takuma Otsuka, Tetsuya Ogata, Hiroshi G. Okuno: "Infinite Sparse Factor Analysis for Blind Source Separation in Reverberant Environments," SSPR/SPR 2012, pp. 638-647, Lecture Notes in Computer Science, Vol. 7626, 2012.
  5. Angelica Lim, Takeshi Muzumoto, Takuma Otsuka, Tatsuhiko Itohara, Kazuhiro Nakadai, Tetsuya Ogata, Hiroshi G. Okuno: "More cowbell! A musical ensemble with the NAO thereminist," Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2011), IROS 2011 Standard Platform Demo, IEEE, RSJ, San Francisco, 25-30 Sep. 2011.
  6. Tatsuhiko Itohara, Takeshi Muzumoto, Takuma Otsuka, Tetsuya Ogata, Hiroshi G. Okuno: "Particle-filter Based Audio-visual Beat-tracking for Music Robot Ensemble with Human Guitarist," Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2011), accepted, (790/2459 =32.1%), IEEE, RSJ, San Francisco, 25-30 Sep. 2011. IEEE Robotics and Automation Society Japan Chapter Young Award
  7. Takeshi Mizumoto, Takami Yoshida, Kazuhiro Nakadai, Ryu Takeda, Takuma Otsuka, Toru Takahashi, Hiroshi G. Okuno: "Design and Implementation of Selectable Sound Separation on a Texai Telepresence System using HARK," Proceedings of IEEE-RAS International Conference on Robotics and Automation (ICRA-2011), pp. 2130-2137, May 9-13, 2011, Shanghai, China.
  8. Ikkyu Aihara, Ryu Takeda, Takeshi Mizumoto, Takuma Otsuka, Toru Takahashi, Hiroshi G. Okuno, Kazuyuki Aihara: "Compelx Synchronization in a Frustrated System of Calling Frogs," The 1st International Symposium on Innovative Mathematical Modeling (ISIMM 2011), Feb. 28 - March 2, 2011. ISIMM 2011 BEST POSTER AWARD Silver Prize
  9. Angelica Lim, Takeshi Mizumoto, Louis-Kenzo Cahier, Takuma Otsuka, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Robot Musical Accompaniment: Integrating Audio and Visual Cues for Real-time Synchronization with a Human Flutist (invited paper)", Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2010) , pp.1964-1969, 2010. NTF Award for Entertainment Robots and Systems.
  10. Takeshi Mizumoto, Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: "Human-Robot Ensemble between Robot Thereminst and Human Percussionist using Coupled Oscillator Model, " Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2010) , pp.1957-1962, 2010.
  11. Takeshi Mizumoto, Angelica Lim, Takuma Otsuka, Kazuhiro Nakadai, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno: "Integration of flutist gesture recognition and beat tracking for human-robot ensemble, " Proceedings of IEEE/RSJ-2010 Workshop on Robots and Musical Expression, 2010.
• Non-reviewed conference papers
  1. Ikkyu Aihara, Takeshi Mizumoto, Ryu Takeda, Takuma Otsuka, Toru Takahashi, Kazuyuki Aihara, Hiroshi G. Okuno: "Frustration in Synchronized Calling Behavior of Japanese Tree Frogs", International Conference on Nyuroethology, 2010. (poster)
  2. Takeshi Mizumoto, Ikkyu Aihara, Takuma Otsuka, Toru Takahashi, Kazuyuki Aihara, Hiroshi G. Okuno: "Sound imaging system for visualizing spatio-temporal behavior of calling nocturnal animals", International Conference on Nyuroethology, 2010. (poster)
• Other publications
  1. Hiroshi G. Okuno, Kazuhiro Nakadai, Takuma Otsuka: "Real-time Music Information Processing for Music Robots (Japanese), " Frontiers of Music Information Processing Technologies, Journal of Information Processing Society of Japan , Vol.50, No.8 (Aug. 2009) pp.729-734.
• Other activities
  1. Open source robot audition software HARK
     • The 5th Tutorial on Robot Audition HARK (Japanese), instructor, Kyoto University, 2010.
     • Feasibility test of HARK system at Willow Garage Co., Ltd., Menlo Park, CA, Mar., 2010 Willow Garage Blog Demo video
     • The 4th Tutorial on Robot Audition HARK, instructor, IEEE Humanoids2009, Paris, France, Dec., 2009
     • The 3rd Tutorial on Robot Audition HARK, instructor, Keio University, 2009.
     • The 2nd Tutorial on Robot Audition HARK, teaching assistant, KIST, Korea, 2008.
     • The 1st Tutorial on Robot Audition HARK, teaching assistant, Kyoto University, 2008.