Waqas Majeed1,
Feng Wang2, 3, Robert M. Friedman4, Chaohui
Tang2, 3, Malcolm J. Avison2, 3
1Department
of Electrical Engineering, Lahore University of Management Sciences, School of
Science and Engineering, Lahore, Punjab, Pakistan; 2Vanderbilt
University Institute of Imaging Science (VUIIS), Vanderbilt University,
Nashville, TN, United States; 3Department of Radiology, Vanderbilt
University, Nashville, TN, United States; 4Department of
Psychology, Vanderbilt University, Nashville, TN, United States
Bootstrap stability analysis (BSA) has previously been shown to be a more robust and accurate method for ICA model order estimation, compared with traditional methods. However, large computational burden associated with BSA makes it impractical. In this work, we demonstrate that BSA can be used on the prefiltered and downsampled data without compromising the results, while reducing the processing time to a great degree.