Experimental Study of Combinatorial Optimization Based on Single Intentional Blinking Action

This study explores the optimization of combinations based on single intentional blinking actions, aiming to enhance the efficiency of eye-controlled interaction systems. The experiment selected three basic actions: simultaneous bilateral blinking (SB), single right-eye blink (SBR), and single left-eye blink (SBL), which were paired to form six combinations: $\mathrm{SB}+\mathrm{SBR}$, $\mathrm{SBR}+\mathrm{SB}$, $\mathrm{SB}+\mathrm{SBL}$, SBL + SB, $\mathrm{SBR}+\mathrm{SBL}$, and SBL+SBR. The results indicated that the SB+SBR combination had the highest recognition success rate (93.75%), while the SBL+SB combination had the lowest success rate $(\mathbf{9 0. 2 5 \%}$). Analysis of overall completion time, single action completion time, and interaction interval time revealed that the order of blinking actions significantly affected the completion time of SBL, whereas the durations of SB and SBR were relatively stable. Subjective evaluations indicated that combinations containing SB had a lower subjective load. SB+SBR and $\mathrm{SB}+\mathrm{SBL}$ are recommended as blink control commands. This study provides theoretical support for designing efficient intentional blink interaction systems.