Eye Control Interface Design And Evaluation Method Research

With the vigorous development of the Internet and human-computer interaction technology,products with natural interaction characteristics are sought after by more and more people.However,the ancient human-computer interaction interface has been unable to meet new demands,and the next generation of human-computer interaction interfaces tend to integrate the development of multiple channels such as touch,hearing,and vision.The interaction of eye movement data as an input channel is undoubtedly a new channel that can be opened up.This is also the focus of the virtual reality that has attracted attention from a wide audience and has forward-looking research value.This topic analyzes the limitations of the different eye movement interaction systems at home and abroad and the advantages and disadvantages of the application fields.Based on the user-centered design principles,the eye movement interaction design principles are proposed,and the framework of the eye movement interaction system based on Unity is completed.The system has three core functional modules: the sight line calibration module,the visual line monitoring feedback module and the eye movement interaction module,and summarizes the technical route and the methods used in the development of the eye contact interaction experiment project.In order to ensure the robustness and reliability of the eye-moving interaction system,the minimum size of the eye-control interface element with a physical size of 24 inches and a resolution of 1920×1080 screen is first calculated according to the theory of eye-controlled space-time characteristics 1.5°(121px)and the minimum element gap in the eye control interface is 1 degrees(40px).can guarantee the correct rate of eye movement interaction in task flow operation.Secondly,this paper proposes the research of eye control interface design from the aspect of interface information capacity.Through experimental verification,the relationship between eye movement interaction time and interface capacity is positively correlated.At the same time,when the interface element capacity is 25,the task flow eye movement interaction remains can guarantee a high completion rate.Then,under the premise of the interface capacity of 25,the search habits of elements in the task flow operation are proposed from the two dimensions of the interface element spacing and angle,and the positional dominance of the elements is obtained through the eye-control interface layout experiment qualitative analysis.The expression of the distance and the quantitative regression analysis concluded that the equation for the relationship between eye movement interaction time and element spacing is t=0.705·D0.28+2(the dwell time threshold is 2s,and the size depends on the actual situation).The correction of the formula of eye-control time prediction model extended by the time prediction model in eye movement control theory was completed.Finally,this topic combined with previous research on the aircraft mission flow,selected the Boeing 737 digital interface to carry out the pre-takeoff,landing two task flow for aircraft mission flow eye control simulation evaluation experiments.The evaluation results show that the theoretical eye movement interaction time calculated by the empirical formula of the eye-control time prediction model is equal to the actual interaction time of the task flow operation,and the model is very effective.