Fig. 1.

EKF and WLSQ solutions for simulated NIRS data: (a) $\mathrm{\Delta }\mathrm{HbO}$ calculated using EKF and WLSQ and the true known sequence; (b) residual errors in $\mathrm{\Delta }\mathrm{HbO}$ for EKF and WLSQ; (c) $\mathrm{\Delta }\mathrm{HbR}$ calculated using EKF and WLSQ; (d) residual errors for $\mathrm{\Delta }\mathrm{HbR}$; (e) $\mathrm{\Delta }{\mathrm{DPF}}_{\lambda }$ terms calculated using EKF. The true $\mathrm{\Delta }{\mathrm{DPF}}_{\lambda }$ errors are shown in dotted lines.