液晶与显示2025，Vol.40Issue(12)：1819-1828,10.DOI:10.37188/CJLCD.2025-0213
基于角膜折射与滑移补偿的凝视估计算法
Gaze estimation algorithm based on corneal refraction and slip compensation
摘要
Abstract
To improve the gaze estimation accuracy and slippage-robust in head-mounted eye tracking devices,a gaze estimation algorithm combining corneal refraction and lower eyelid slip compensation was proposed.First,an initial eye model was constructed based on the pupil back-projection method to obtain the virtual pupil position.The pupil positioning error caused by corneal refraction was corrected using the Snell refraction law to obtain the true pupil position.The optimized eye model was then iteratively obtained.Subsequently,vertical device slip was monitored in real time through lower eyelid region corner detection and density analysis to compensate for gaze estimation.Experimental results show that the proposed method can compensate for the slip effect when the device is worn,with an average gaze estimation error of 2.882°,which is superior to two-dimensional and three-dimensional methods.The proposed gaze estimation algorithm combining corneal refraction and lower eyelid slip compensation can effectively improve gaze estimation accuracy and significantly enhance the system's robustness to device slip in real-world wearable scenarios,verifying the reliability and practicality of the proposed method.关键词
头戴式显示/凝视估计/角膜折射/滑移Key words
head-mounted display/gaze estimation/corneal refraction/slippage分类
信息技术与安全科学引用本文复制引用
XIA Yuchen,WU Shiqian,WAN Zhonghua,YIN Zihang,YANG Mingxuan..基于角膜折射与滑移补偿的凝视估计算法[J].液晶与显示,2025,40(12):1819-1828,10.基金项目
河南省科学院高层次人才科研启动项目(No.241829196)Supported by High-level Talent Research Start-up Project Funding of Henan Academy of Sciences(No.241829196) （No.241829196）
