Fig. 7
Actual (Pactual) and estimated target positions (\( {\widehat{P}}_{\mathrm{estimated}} \)) in the (a) left-right (LR), (b) superior-inferior (SI), and (c) anterior-posterior (AP) directions with and without the baseline drift correction of the first scan of Patient 2, estimated from the estimation equation modeled by the data of the third scan. Both the modeling and correction periods was 10 s