Eye-Tracking Auxiliary Based Interface Interaction Design And Its Usability Research

With the development of technology and demand,HCI(HCI)has extended to more fields,and more scenarios have been developed.The elements,structures,functions and usage scenarios of the interface have also changed accordingly,which has prompted us to do more exploration and research on emerging fields.As a well-established measurement approach,eye-tracking is widely used in the fields of psychology,HCI,user experience and consumer behavior.Existing research often uses eye-tracking to explore the user's perception process of interface elements,in order to verify the experimental hypothesis or provide an objective and reasonable basis for the evaluation of the design.In addition to these applications,eyetracking also has the potential to be an information deliver like mouse and keyboard,which can improve user performance and bring new experiences to HCI.Some cases have constructed different types of eye-tracking based HCI systems from different eye signals,and applied them in the fields of game entertainment,social software,and disabled people.The problem is that these applications often need to build new systems and verify their availability in specific tasks,the application potential in actual scenarios is difficult to evaluate.The purpose of this study is to build a eye-tracking based auxiliary webpage interaction system under common platforms and evaluate its usability under common tasks by judging fixation and eye-tracking signals in real time.The article conducts literature research from the processing characteristics of human visual system,analyzes the user's visual attention and aesthetic evaluation process of interface element processing,discusses the influence of interface factors,contextual factors and user factors on the above process in the context of web HCI,the interaction between different factors also included;Based on the physiological mechanism of the human visual system and combined with the technical characteristics of existing eye tracker platform,the technical comparison and functional analysis of different types of eye-tracking based HCI systems cases were carried out;By sorting out the system elements and interaction logic,an eye-tracking auxiliary based interface interaction system was designed,and a B2 C head platform commodity purchase experiment was designed under the Windows platform to compare the user experience between mouse interface and eye-tracking auxiliary interface.It is found that the latter scores higher in the simplicity,ease of learning and the intuitiveness of the interaction.There are mainly efficiency-related descriptions such as saving motor operation,assisting position and improving operation efficiency,while the main disadvantages are shaking,low position accuracy,and eye-hand competition,etc.,the system usability score(SUS)is moderately low;Behavioral data and eye movement data show that the jitter of the interaction system lead to excessively long selection time,thus extended the operation time under eye-tracking auxiliary based interface interaction system in e-commerce websites.After improved the system,the indicators showed a significant decrease,which proves that the user can complete the current task faster and more focused.The eye-tracking data also indicates that user's cognition involved more and they became more focus in tasks;The improvement is also reflected in the improvement of the scale validity and system usability score(SUS),which proves that users are more skilled in the use of the system and have higher acceptance.The article concludes with a discussion of the research limitation.The direction of system improvement is prospected...