A Gray Difference-Based Pre-Processing for Gaze Tracking

摘要：

In practical applications of gaze tracking systems, because the glasses and accessories often degrade the accuracy of eye detection and gaze tracking, the pre-processing to eliminate these factors is extremely essential for gaze tracking systems. In this paper, a gray difference-based pre-processing scheme is proposed, which utilizes the gray difference between the face, pupils and reflecting points on the cornea to detect the eyes. When the proposed scheme is tested under a cross-ratioinvariant-base gaze tracking system with subjects wearing glasses and accessories, the adaptability and practicality of the test system is improved greatly. The experimental results show that the system can achieve average accuracies of about 0.5 degree in a view field of 14×20×10(cm), which is almost the same as most of commercial gaze tracking systems. That demonstrates the proposed pre-processing scheme is so effective and helpful that it is promising to be adopted into gaze tracking system.

关键词： Gaze Tracking Eye Tracking Gray Difference Reflective Optical Effects Removing

作者: Caixia Yang Jiande Sun Ju Liu Xiaohui Yang Dichangsheng Wang Wei Liu

作者单位: School of Information Science and Engineering, Shandong University, Jinan 250100, P.R.China Hisense State Key Laboratory of Digital Multi-Media Technology Cop., LTD, Qingdao 266071, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1293-1296

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）