| Presentation | 2019-03-14 Estimation of rank-constrained spatial covariance model based on multivariate complex Student's t distribution for blind source separation Yuki Kubo, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we generalize a generative model in estimation of rank-constrained spatial covariance model that separates directional target and diffuse background sources. Conventional method models an observed signal with the multivariate complex Gaussian distribution and efficiently separates the target source. This paper models an observed signal with the multivariate complex Student's $t$-distribution and proposes its optimization algorithm. In the experiments, we separate speech signal and diffuse babble, station, and traffic noise to show superiority of the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | blind source separation / spatial covariance model / multivariate complex Student's $t$-distribution / auxiliary function method / multiplicative update rule |
| Paper # | EA2018-128,SIP2018-134,SP2018-90 |
| Date of Issue | 2019-03-07 (EA, SIP, SP) |
| Conference Information | |
| Committee | EA / SIP / SP |
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| Conference Date | 2019/3/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | i+Land nagasaki (Nagasaki-shi) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Signal Processing, Speech, and Related Topics |
| Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shogo Muramatsu(Niigata Univ.) / Yoichi Yamashita(Ritsumeikan Univ.) |
| Vice Chair | Kenichi Furuya(Oita Univ.) / Kanji Watanabe(Akita Pref. Univ.) / Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) / Akinobu Ri(Nagoya Inst. of Tech.) |
| Secretary | Kenichi Furuya(Shizuoka Inst. of Science and Tech.) / Kanji Watanabe(NHK) / Naoyuki Aikawa(Takushoku Univ.) / Kazunori Hayashi(Hiroshima Univ.) / Akinobu Ri(Kyoto Univ.) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) / Tomoki Koriyama(Tokyo Inst. of Tech.) / Satoshi Kobashikawa(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Signal Processing / Technical Committee on Speech |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of rank-constrained spatial covariance model based on multivariate complex Student's t distribution for blind source separation |
| Sub Title (in English) | |
| Keyword(1) | blind source separation |
| Keyword(2) | spatial covariance model |
| Keyword(3) | multivariate complex Student's $t$-distribution |
| Keyword(4) | auxiliary function method |
| Keyword(5) | multiplicative update rule |
| 1st Author's Name | Yuki Kubo |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Norihiro Takamune |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Daichi Kitamura |
| 3rd Author's Affiliation | National Institute of Technology, Kagawa College(Kagawa NCIT) |
| 4th Author's Name | Hiroshi Saruwatari |
| 4th Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2019-03-14 |
| Paper # | EA2018-128,SIP2018-134,SP2018-90 |
| Volume (vol) | vol.118 |
| Number (no) | EA-495,SIP-496,SP-497 |
| Page | pp.pp.173-178(EA), pp.173-178(SIP), pp.173-178(SP), |
| #Pages | 6 |
| Date of Issue | 2019-03-07 (EA, SIP, SP) |