基于曲面屏的眼动数据校正  

Gaze data correction for curved screen in eye tracking system

作　　者：栗战恒 Li Zhanheng(School of Applied Engineering,He’nan University of Science and Technology,Sanmenxia 472000,China;The Department of Mechanical and Electrical Engineering,Sanmenxia Polytechnic,Sanmenxia 472000,China)

机构地区：[1]河南科技大学应用工程学院,河南三门峡472000 [2]三门峡职业技术学院机电工程学院,河南三门峡472000

出　　处：《无线互联科技》2024年第9期90-94,共5页Wireless Internet Technology

基　　金：2022年三门峡市科技攻关计划,项目名称:基于曲面屏的眼动数据校正研究,项目编号:2022002021。

摘　　要：曲面屏不同于平面屏,其曲度会造成基于模型法得到的眼动估计数据与用户实际数据存在差异,这影响了眼动设备的跟踪精度。针对以上问题,文章提出了基于屏幕误差模型的眼动数据校正方法。该方法借助眼动设备的视线标定流程,通过分析用户眼动数据与视线估计数据间的几何关系,推断曲面屏与平面屏在视线估计中的系统误差,将该偏差用于眼动数据校正。计算机仿真结果显示,校正后的眼动数据误差小于15.51 pixels,比校正前降低了48.89%。The curvature of curved screen can cause the deviations between the eye-tracking data derived by eye tracker used on a flat screen and the actual gaze data.In order to correct deviations,a model-based method with geometric solutions is proposed in this paper.The deviations of estimated gaze points are geometrically analyzed based on the screen models between curved screen and flat screen.Obtaining the systematic error of screen based on the actual gaze data and the eye-tracking data in a nine-point calibration,calculating data error based on systematic error model of screen,the obtained data error is used for gaze correction.This method is validated by computer simulations.Corrected date is within±15.51 pixels,which is reduced in 48.89%.

关 键 词：视线跟踪 校正 曲面屏 眼动数据 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]