Journal of Applied Mathematics / 2012 / Article / Tab 1

Research Article

Scanning Reduction Strategy in MEG/EEG Beamformer Source Imaging

Table 1

Comparative total computing time (in seconds) of single trial analysis for different empirical data between conventional full-scan beamformer and reduced scanning beamformer with our proposed strategy. Source region with a total of 8,640 scanning points and a temporal window of 500 time samples were used. Experiments were conducted on a PC (Intel Core 2 Duo CPU 2.4 GHz, 32 bit OS, and 4 GB RAM).

Experiment (No. of trials)Elapsed time of beamformer imaging (sec)Improvement (%)
Full-scanReduced scanning

Median-right (399)723.3418.842.1
Median-left (418)760.6430.243.4
Auditory-right (73)132.174.743.5
Auditory-left (70)126.972.143.2

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