发明名称 |
Analysis of multi-channel measurement data using orthogonal virtual channels |
摘要 |
The present invention introduces a method for processing multichannel measurement data achieved especially in MEG and EEG measurements. The method uses a signal space separation (SSS) method and the orthogonality of lead fields in order to calculate linear transformation from physical measurement channels to virtual channels. The geometry related to the measurement arrangement is dissipated and the number of virtual channels is clearly lower than the number of physical sensors. The concept of total information can be applied for such transformed measurement data due to orthogonality. The method offers simplified post-processing of the biomagnetic data, such as for source modelling. The total information can also be interpreted as a robust quantity describing the physiological state of a patient.
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申请公布号 |
US2008161714(A1) |
申请公布日期 |
2008.07.03 |
申请号 |
US20070654029 |
申请日期 |
2007.01.17 |
申请人 |
AHONEN ANTTI;KAJOLA MATTI;NENONEN JUKKA;SIMOLA JUHA;TAULU SAMU |
发明人 |
AHONEN ANTTI;KAJOLA MATTI;NENONEN JUKKA;SIMOLA JUHA;TAULU SAMU |
分类号 |
A61B5/04 |
主分类号 |
A61B5/04 |
代理机构 |
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地址 |
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