| Presentation | 2008-03-12 A Point-source Fidelity Solution of Bioelectromagnetic Inverse Problem Yasushi TERAZONO, Ayumu MATANI, Norio FUJIMAKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Bioelectromagnetic inverse problem is one of the primal issues in the analysis of noninvasive bioelectromagnetic measurements like MEG and EEG. It is an estimation of current source distribution in the brain given measured data. We introduce an estimation method suitable for sparse sources. The method assures correct reconstruction of any point-source in vector fields. It is an extension of conventional weighted l_1-norm minimization to appropriately evaluate vector fields, and can be expressed as an second order cone programming. Correct reconstruction of point-sources with the proposed method is mathematically proved, and numerical comparison between the proposed and conventional method is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | inverse problem / MEG / sparse / norm / vector field / point-source / fidelity |
| Paper # | NC2007-116 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2008/3/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Point-source Fidelity Solution of Bioelectromagnetic Inverse Problem |
| Sub Title (in English) | |
| Keyword(1) | inverse problem |
| Keyword(2) | MEG |
| Keyword(3) | sparse |
| Keyword(4) | norm |
| Keyword(5) | vector field |
| Keyword(6) | point-source |
| Keyword(7) | fidelity |
| 1st Author's Name | Yasushi TERAZONO |
| 1st Author's Affiliation | NiCT Kobe Advanced Research Center() |
| 2nd Author's Name | Ayumu MATANI |
| 2nd Author's Affiliation | Graduate School of Frontier Sciences, the University of Tokyo |
| 3rd Author's Name | Norio FUJIMAKI |
| 3rd Author's Affiliation | NiCT Kobe Advanced Research Center |
| Date | 2008-03-12 |
| Paper # | NC2007-116 |
| Volume (vol) | vol.107 |
| Number (no) | 542 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |