基于双光源的实时视线追踪系统  

Real-time Gaze Tracking System Based on Dual Illuminators

作　　者：黄莹[1] 王志良[1] 戚颖[1] 

机构地区：[1]北京科技大学信息工程学院,北京100083

出　　处：《中国工程科学》2008年第2期86-90,共5页Strategic Study of CAE

基　　金："九七三"国家重点基础研究发展计划资助项目(2006CB303101);国家自然科学基金资助项目(60573059)

摘　　要：介绍了一个非穿戴式的低成本视线追踪系统。采用双近红外光源照射,单CCD相机获取信息的系统结构。并采用独特的双眼参数综合利用的方法来获取视线方向参数,使视线方向追踪效果更加稳定,并且同时扩大了有效追踪范围。此外,在视线方向参数获取、分析的过程中采用了一套快速算法使系统能满足实时性的要求。应用实例表明,该系统在人-机交互领域的应用已有了初步成效。This paper presents a fast, low cost and non-contact gaze tracking system. The system is based on dual illuminators and a CCD camera. The carom captured the image of two eyes, and the synthesized infomation of both eyes was used to detect the gaze direction. A fast pupil detection algorithm was proposed to speed up the image processing, and a simple model was used to recognize the gaze direction. Experimental results show that the system is applicable from - 20° to ＋ 20° angle of gaze in horizon and - 16° to ＋ 16° angle of gaze in vertical. A hurrah-computer interaction application proves that the system can estimate the user＇s gaze direction with tiny delay and relative high stability.

关 键 词：人-机交互 视线追踪 普尔钦斑 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]