Tomohiko Nakamura

I received B.E., M.S. and Ph.D. degrees from the University of Tokyo, Japan, in 2011, 2013 and 2016.
I am currently with Graduate School of Information Science and Technology, the University of Tokyo.
E-mail: Tomohiko.Nakamura.JP[at]ieee.org (replace [at] with "@")

Research Interests

  • Audio Signal Synthesis/Construction
    • Fast Signal Reconstruction from Magnitude Spectrogram of Constant-Q transform (or Continuous Wavelet Transform) based on Spectrogram Consistency
      [Demo Page]
  • Music Audio Signal Processing
    • Harmonic-Temporal Factor Decomposition for Monural Source Separation
      [Demo Page]
    • Timbre Replacement of Harmonic and Drum Components for Music Audio Signals
      [Demo Page]
    • Acoustic score following and acousitc automatic accompaniment for musical performance in practice
      [Demo Page]
    • MIDI score following and automatic accompaniment system for polyphonic MIDI input/output
      [Project Page]
    • Multipitch estimation of acoustic signals of music.
      [.pdf]
  • Machine Learning, Pattern Recognition
    • Nonparametric Bayesian inference for signal processing
  • System Biology
    • Local stability/instability analysis of quorum-sensing networks in a multi-cell environment
      [J-Stage]

Biography


Member

  • IEEE Signal Processing Society (SPS)
  • Information Processing Society of Japan (IPSJ)
  • Acoustic Society of Japan (ASJ)

Publications

Journals

  1. Tomohiko Nakamura, Eita Nakamura, Shigeki Sagayama, "Real-Time Audio-to-Score Alignment of Music Performances Containing Errors and Arbitrary Repeats and Skips," IEEE/ACM Transactions on Audio, Speech and Language Processing (IEEE/ACM TASLP), vol. 24, issue 2, pp. 329--339, Feb. 2016.
    [arXiv:1512.07748], [IEEE Xplore], [.bib].
  2. Tomohiko Nakamura, Yutaka Hori and Shinji Hara, "Hierarchical Modeling and Local Stability Analysis for Repressilators Coupled by Quorum Sensing," SICE Journal of Control, Measurement, and System Integration (JCMSI), vol. 7, no. 3, pp. 133-140, May, 2014.
    [J-Stage], [.bib].
    [2015年計測自動制御学会 論文賞 (武田賞) ]
  3. Eita Nakamura, Tomohiko Nakamura, Yasuyuki Saito, Nobutaka Ono and Shigeki Sagayama, "Outer-Product Type Hidden Markov Model and Polyphonic MIDI Score Following," Journal of New Music Research (JNMR), vol. 43, issue 2, pp. 183--201, Apr. 2014.
    [arXiv:1404.2313], [Journal Site], [.bib].

Peer-Reviewed International Conferences and Workshops

  1. Tomohiko Nakamura and Hirokazu Kameoka, "Shifted and Convolutive Source-Filter Non-Negative Matrix Factorization for Monaural Audio Source Separation," Proc. 41st IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 489--493, Mar. 2016.
    [.pdf], [.bib].
  2. Tomohiko Nakamura and Hirokazu Kameoka, "L_p-Norm Non-Negative Matrix Factorization and Its Application to Singing Voice Enhancement," Proc. 40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2115--2119, MLSP-P4.1, Apr. 2015.
    [.pdf], [.bib].
  3. Tomohiko Nakamura, Kotaro Shikata, Norihiro Takamune and Hirokazu Kameoka, "Harmonic-Temporal Factor Decomposition Incorporating Music Prior Information for Informed Monaural Source Separation," Proc. 15th International Society for Music Information Retrieval Conference (ISMIR2014), pp. 623--628, Oct. 2014.
    [ISMIR proceeding] [.bib].   [Demo Page],
    [Supported by the Tateishi Science and Technology Foundation] .
  4. Takuya Higuchi, Hirofumi Takeda, Tomohiko Nakamura, Hirokazu Kameoka, "A Unified Approach for Underdetermined Blind Signal Separation and Source Activity Detection by Multichannel Factorial Hidden Markov Models," Proc. 15th Annual Conference of the International Speech Communication Association (Interspeech2014), pp. 850--854, Sept. 2014.
    [.pdf], [.bib].
  5. Tomohiko Nakamura and Hirokazu Kameoka, "Fast Signal Reconstruction from Magnitude Spectrogram of Continuous Wavelet Transform based on Spectrogram Consistency," Proc. 17th International Conference on Digital Audio Effects (DAFx-14), pp. 129--135, Sept. 2014.
    [.pdf], [.bib],   [Demo Page],
    [Supported by the Hara Research Foundation].
  6. Tomohiko Nakamura, Hirokazu Kameoka, Kazuyoshi Yoshii and Masataka Goto, "Timbre Replacement of Harmonic and Drum Components for Music Audio Signals," Proc. 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP2014), pp. 7520--7524, May, 2014.
    [.pdf], [.bib],   [Demo Page].
  7. Takuya Higuchi, Norihiro Takamune, Tomohiko Nakamura and Hirokazu Kameoka, "Underdetermined Blind Separation and Tracking of Moving Sources based on DOA-HMM," Proc. 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP2014), pp. 3215--3219, May, 2014.
    [.pdf], [.bib].
  8. Shigeki Sagayama, Tomohiko Nakamura, Eita Nakamura, Yasuyuki Saito, Hirokazu Kameoka and Nobutaka Ono, "Automatic Music Accompaniment Allowing Errors and Arbitrary Repeats and Jumps," Proc. Meetings on Acoustics (POMA), vol. 21, 035003, 2014.
    [Proceeding], [.bib], (Invited Talk).
  9. Tomohiko Nakamura, Eita Nakamura and Shigeki Sagayama, "Acoustic Score Following to Musical Performance with Errors and Arbitrary Repeats and Skips for Automatic Accompaniment," Proc. Sound and Music Computing Conference (SMC2013), pp. 299--304, Aug. 2013.
    [.pdf], [Proceeding], [.bib], [Demo Page],
    [Supported by the Telecommunications Advancement Foundation] .
  10. Masahiro Nakano, Jonathan Le Roux, Hirokazu Kameoka, Tomohiko Nakamura, Nobutaka Ono and Shigeki Sagayama, "Bayesian Nonparametric Spectrogram Modeling Based on Infinite Factorial Infinite Hidden Markov Model," Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), pp. 325-328, Oct. 2011.
    [.pdf], [.bib].
  11. Tomohiko Nakamura, Shinji Hara and Yutaka Hori, "Local Stability Analysis for a class of Quorum-Sensing Networks with Cyclic Gene Regulatory Networks," Proc. SICE Annual Conference, pp. 2111--2116, Sept. 2011.
    [IEEE Xplore], [.bib].
    [T.N. received SICE Annual Conference 2011 International Award and Finalist of Young Author's Award]

Non-Reviewed International Conferences and Workshops

  1. Tomohiko Nakamura, Daisuke Saito, Hirokazu Kameoka and Shigeki Sagayama, "Structure analysis based on music modeling with repeated segments," VERSAMUS 2012 Workshop on Advances in Music Signal and Information Processing, Mar. 2012.
    [VERSAMUS2012 Page].

Review Papers

  1. Hirokazu Kameoka, Tomohiko Nakamura and , "Recent advances in music signal processing techniques," The Journal of Institute of Electronics, Information and Communication Engineers, vol. 98, no. 6, pp. 467--474, Jun. 2015 (in Japanese).
    [.pdf], [.bib].

Domestic Conferences

  1. 中村 友彦, 亀岡 弘和, "高速近似連続ウェーブレット変換による振幅スペクトログラムからの逐次位相推定法," 情報処理学会研究報告, 2016-MUS-111 (47), pp. 1--5, May 2016.
    [.pdf].
  2. 中村 友彦, 亀岡 弘和, "非負値行列因子分解に基づく欠損データ補間による超解像声道スペクトル推定法," 電子情報通信学会技術研究報告, vol. 115, 523, SP2015-111, pp. 99--104, Mar. 2016.
    [.pdf].
  3. 中村 友彦, 亀岡 弘和, "高速近似連続ウェーブレット変換による振幅スペクトログラムに対する実時間位相推定法," 日本音響学会2016年春季研究発表会, pp. 933--936, Mar. 2016.
    [.pdf].
  4. 中村 友彦, 亀岡 弘和, "非負値行列因子分解に基づく欠損データ補間による声道スペクトル推定法の検討," 日本音響学会2016年春季研究発表会, pp. 393--396, Mar. 2016.
    [.pdf].
  5. 中村 友彦, 亀岡 弘和, "全極スペクトルモデルと擬似周期信号モデルのウェーブレット変換表現を用いた多重音スペクトログラムの調波時間因子分解," 情報処理学会研究報告, 2015-MUS-107 (50), May. 2015.
    [.pdf],
    [音学シンポジウム2015年ポスター賞].
  6. 中村 友彦, 亀岡 弘和, "全極スペクトルモデルを用いた調波時間因子分解による多重音解析," 情報処理学会研究報告, 2015-MUS-106 (26), Mar. 2015.
    [.pdf].
  7. 中村 友彦, 吉井 和佳, 後藤 真孝, 亀岡 弘和, "音楽音響信号中の調波音の周波数特性およびドラムの音色の置換システム," 情報処理学会研究報告, 2014-MUS-104 (11), Aug. 2014.
    [.pdf].
  8. 中村 友彦, 亀岡 弘和, "無矛盾性規準に基づく連続ウェーブレット変換スペクトログラムへの位相推定法と高速化," 情報処理学会研究報告, 2014-MUS-103 (41), May, 2014.
    [.pdf],
    [2015年度山下記念研究賞].
  9. 樋口 卓也, 高宗 典玄, 中村 友彦, 亀岡 弘和, "確率的モデル化に基づく移動音源の劣決定ブラインド音源分離," 電子情報通信学会技術研究報告, vol. 114, no. 52, pp. 211--216, May, 2014.
    [.pdf].
  10. 四方 紘太郎, 高宗 典玄, 中村 友彦, 亀岡 弘和, "調波時間因子分解法に基づく事前情報付き多重音解析," 情報処理学会研究報告, 2014-MUS-103 (18), May, 2014.
    [.pdf].
  11. 中村 友彦, 亀岡 弘和, "連続ウェーブレット変換の高速近似アルゴリズムに基づく振幅スケーログラムへの無矛盾位相付加法の検討," 日本音響学会2014年春季研究発表会講演集, 3-2-15, Mar. 2014.
    [.pdf].
  12. 中村 友彦, 吉井 和佳, 後藤 真孝, 亀岡 弘和, "音楽音響信号に含まれる調波音の周波数特性とドラムの音色の転写システム," 日本音響学会2014年春季研究発表会講演集, 3-5-5, Mar. 2014.
    [.pdf],
    [学生優秀発表賞].
  13. 四方紘太郎, 高宗 典玄, 中村 友彦, 亀岡 弘和, "調波時間因子分解に基づく音楽事前情報付き多重音解析," 日本音響学会2014年春季研究発表会講演集, 3-5-7, Mar. 2014.
    [.pdf].
  14. 樋口 卓哉, 高宗 典玄, 中村 友彦, 亀岡 弘和, "DOA-HMMに基づく劣決定ブラインド音源分離," 日本音響学会2013年秋季研究発表会講演集, 1-8-7, Sept. 2013.
    [.pdf].
  15. 中村 友彦, 中村 栄太, 嵯峨山 茂樹, "誤り・任意の弾き直し・弾き飛ばしを含む演奏音響信号への高速な楽譜追跡," 情報処理学会研究報告, 2013-MUS-99 (40), May, 2013.
    [.pdf]
  16. 中村 友彦, 中村 栄太, 嵯峨山 茂樹, "弾き直し・弾き飛ばしを含む音楽演奏への高速な音響入力楽譜追跡," 情報処理学会 第75回全国大会, Mar, 2013.
    [.pdf]
    [学生奨励賞]
  17. 中村 友彦, 水野 優, 鈴木 孝輔, 中村 栄太, 樋口 祐介, 深山 覚, 嵯峨山 茂樹, "音楽演奏の誤りや反復に頑健な音響入力自動伴奏," 日本音響学会2012年秋季研究発表会講演集, 2-10-6, 20, pp. 931-934, Sept. 2012.
    [.pdf]
  18. 中野 允裕, ルルー ジョナトン, 亀岡 弘和, 中村 友彦, 小野 順貴, 嵯峨山 茂樹, "スペクトログラムのベイジアンノンパラメトリックモデリングに基づく音楽信号の解析," 情報処理学会研究報告, 2011-MUS-91 (6), Jul. 2011.
    [.pdf]

Symposium

  1. 中村 友彦, 吉井 和佳, 後藤 真孝, 亀岡 弘和, "音楽音響信号中の調波音の周波数特性およびドラムの音色の置換システム," OngaCRESTシンポジウム2014 -音楽情報処理研究が切り拓く未来を探る-, Aug. 23, 2014.

Theses

  1. Ph.D. Thesis:
    Tomohiko Nakamura, "Source-Filter Representation and Phase Estimation in Continuous Wavelet Transform Domain for Monaural Music Audio Editing,", the University of Tokyo, Mar. 2016.
    [東京大学大学院情報理工学系研究科 研究科長賞].
  2. Master's Thesis:
    Tomohiko Nakamura, "Fast Score Following to Acoustic Signal of Musical Performance with Errors, Repeats and Skips,", the University of Tokyo, Mar, 2013, in Japanese.
  3. Bachelor's Thesis:
    Tomohiko Nakamkura, "Local Stability Analysis of Cell-to-Cell Networks with Cyclic Gene Regulatory Networks," the University of Tokyo, Mar, 2011, in Japanese.

Patents

  1. 伊藤 忠彦, 中村 友彦, 島岡 政基, "証明書管理装置," 特開2019-57755.
  2. 亀岡 弘和, 中村 友彦, "声道スペクトル推定装置、声道スペクトル推定方法、及びプログラム," 特願2017-151188, 特許第6420781号.

Awards

  1. IPSJ MUS Recommended Ph.D. Thesis, Aug. 2016.
  2. Dean’s Award from Graduate School of Information Science and Technology, The University of Tokyo, Mar. 2016.
  3. Best Paper Award (Takeda Award) from SICE, Oct. 2015.
  4. IPSJ Yamashita SIG Research Award, Mar. 2015.
  5. Best Poster Award from Otogaku Symposium 2015, May 2015.
  6. Student Presentation Award from ASJ, Mar. 2014.
  7. IPSJ Certificate of Excellent Master’s Thesis, Mar. 2013.
  8. Student Encouragement Award of IPSJ National Convention, Mar. 2013.
  9. SICE Annual Conference 2011 International Award, Sept. 2011.
  10. SICE Annual Conference 2011 Finalist of Young Author Award, Sept. 2011.

Funds

  1. Grant-in-Aid for JSPS Fellows (DC2), Grant No. 15J09992 (Apr. 2015 to Mar. 2016)
  2. Research Fellowship for Young Scientists DC2 (Apr. 2015 to Mar. 2016)

Travel Grants

  1. Grants for Researchers Attending International Conferences, The Tateishi Science and Technology Foundation (Oct. 2014.)
  2. Grants for Researchers Attending International Conferences, The Hara Research Foundation (Sept. 2014.)
  3. Grants for Researchers Attending International Conferences, The Telecommunications Advancement Foundation (Aug. 2013.)