Title :
Measurement of bio-electromagnetic source signal via subspace decomposition imaging
Author :
Luan, F. ; Choi, Jeong-Hyuk ; Hung, H.-K.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea
Abstract :
A subspace decomposition imaging (SDI) method for measuring a bio-electromagnetic source signal is proposed. The SDI technique is based on spatiotemporal signal analysis from a matrix perspective that decomposes the source into low-rank and sparse components in a manner consistent with the underlying bio-mechanism in statistics. The results establish the feasibility of the SDI method for bio-electromagnetic source signal measurement, with resulting solutions that provide substantial performance improvement over conventional methods.
Keywords :
bioelectric potentials; biomedical imaging; magnetoencephalography; matrix algebra; SDI technique; bioelectromagnetic source signal measurement; biomechanism; magnetoencephalography; matrix perspective; sparse components; spatiotemporal signal analysis; subspace decomposition imaging method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.3985
