| Presentation | 2019-07-19 Evaluation of Noise Immunity for EEG Source Localization by Matching Pursuit Takayoshi Moridera, Takahiro Ito, Akimasa Hirata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, effective utilization of biological signals from the brain activity has been progressing in medical science and industrial applications. The brain activity can be considered as circuit network activity in the gray matter, and a small current is then generated in the corresponding area. The electric signals caused by this current can be measured as brain waves on scalp. Lead field matrix (LFM) is often used to estimate the brain activity. This is a projection matrix, whose elements are defined as the ratio of current density and observed potential. In this study, we use an LFM construction method based on scalar-potential finite-difference method and an estimation algorithm based on the matching pursuit method as an EEG localization method. By computer simulations, localization performance with regard to the number of simulations for constructing LFM is evaluated. The noise immunity for EEG source localization corresponding to the number of electrodes is also evaluated. From the results, the localization error is within about 1 cm when the number of simulations for constricting LFM is 2000.When we use international 10-10 method, degradation of estimation accuracy suppressed in 7 mm compared with noise-free environment even SNR is equal to 0 dB. We found that it shows good estimation performance in noisy environment by increasing the number of electrodes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electroencephalography (EEG) / Scalar-potential finite-difference (SPFD) method / Matching pursuit / Lead field matrix |
| Paper # | EMT2019-34,MW2019-47,OPE2019-38,EST2019-36,MWP2019-34 |
| Date of Issue | 2019-07-11 (EMT, MW, OPE, EST, MWP) |
| Conference Information | |
| Committee | MW / EST / OPE / MWP / EMT / IEE-EMT |
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| Conference Date | 2019/7/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hakodate City Central Library |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Light wave & Electromagnetic Wave Workshop |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) / Akimasa Hirata(Nagoya Inst. of Tech.) / Hiroshi Takahashi(Sophia Univ.) / Naoto Yoshimoto(Chitose Inst. of Science and Tech.) / Koichi Hirayama(Kitami Inst. of Tech.) / Keiji Goto(National Defense Academy) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Shinichiro Ohnuki(Nihon Univ.) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.) / Goji Nakagawa(Fujitsu Labs.) / Akihiko Hirata(Chiba Inst. of Tech.) / Hiroyuki Deguchi(Doshisha Univ.) |
| Secretary | Tadashi Kawai(Utsunomiya Univ.) / Kensuke Okubo(Fujitsu Labs.) / Shintaro Shinjo(National Inst. of Tech.,Sendai College) / Shinichiro Ohnuki(Aoyama Gakuin Univ.) / Masayuki Kimishima(Tokyo Inst. of Tech.) / Jun Shibayama(NTT) / Goji Nakagawa(Yazaki) / Akihiko Hirata(NICT) / Hiroyuki Deguchi(Fukuoka Inst.of Tech.) / (Tokyo Metropolitan Univ.) |
| Assistant | Satoshi Yoshida(Kagoshima Univ.) / Kyoya Takano(Tokyo Univ. of Science) / Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu) / Kenta Miura(Gunma Univ.) / Yuki Wakayama(Hitachi) / Kensuke Ikeda(CRIEPI) / Li Yi(Osaka Univ.) / Takashi Yamada(NTT) / Junichiro Sugisaka(Kitami Inst. of Tech.) / Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / Technical Committee on Electronics Simulation Technology / Technical Committee on OptoElectronics / Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of Noise Immunity for EEG Source Localization by Matching Pursuit |
| Sub Title (in English) | |
| Keyword(1) | Electroencephalography (EEG) |
| Keyword(2) | Scalar-potential finite-difference (SPFD) method |
| Keyword(3) | Matching pursuit |
| Keyword(4) | Lead field matrix |
| 1st Author's Name | Takayoshi Moridera |
| 1st Author's Affiliation | Nagoya Institute of Technology(NITech) |
| 2nd Author's Name | Takahiro Ito |
| 2nd Author's Affiliation | Nagoya Institute of Technology(NITech) |
| 3rd Author's Name | Akimasa Hirata |
| 3rd Author's Affiliation | Nagoya Institute of Technology(NITech) |
| Date | 2019-07-19 |
| Paper # | EMT2019-34,MW2019-47,OPE2019-38,EST2019-36,MWP2019-34 |
| Volume (vol) | vol.119 |
| Number (no) | EMT-126,MW-127,OPE-128,EST-129,MWP-130 |
| Page | pp.pp.161-166(EMT), pp.161-166(MW), pp.161-166(OPE), pp.161-166(EST), pp.161-166(MWP), |
| #Pages | 6 |
| Date of Issue | 2019-07-11 (EMT, MW, OPE, EST, MWP) |