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Denoising performance of linear regression in the second experiment: (A) R values between the denoised HbO time series using the four global regressors and the standard HbO time series using the local regressors. (B) MSE values between the denoised HbO time series using the four global regressors and the standard HbO time series. (C) and (D) R and MES results from the HbR data. The error bars in each graph represent the standard deviations.
