王志强

个人信息Personal Information

副教授

博士生导师

硕士生导师

主要任职:电气工程学院副院长

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:电气工程学院

学科:电工理论与新技术. 电力电子与电力传动

办公地点:大连理工大学A3区32#静电与特种电源研究所204

电子邮箱:wangzq@dlut.edu.cn

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Microwave Resonator for Eye Tracking

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论文类型:期刊论文

发表时间:2019-12-01

发表刊物:IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES

收录刊物:EI、SCIE

卷号:67

期号:12,SI

页面范围:5417-5428

ISSN号:0018-9480

关键字:Differential mode; eye tracking; microwave planar resonator; virtual reality (VR)/augmented reality (AR) wearable device

摘要:This article presents a novel microwave resonator for eye tracking. The system is implemented using coplanar waveguide technology and consists of two identical configurations with a pair of mirror-symmetrical open complementary split-ring resonators. These two sensors are combined with a wearable device placed on the eye and glass frame corners. The proposed evaluation uses two uncoupled and separate reflection magnitudes for differential cross modes. Each sensor has two resonance frequencies, and , to detect horizontal and vertical eye sweeping, respectively. As the user & x2019;s focus sweeps left to right or up and down with the wearable device, the asymmetrical conditions of the eyelid and cornea enhance the variation in differential reflection magnitude. The paired sensors provide information for tracking eye action. By applying the resonator perturbation theory, the eyelid and eye cornea locations above the planar resonator location were analyzed using the equivalent permittivity and conductance loss relationship, respectively. The experimental results indicate that the resonator tracker can detect relative changes in eye gaze from 50 & x00B0; to 130 & x00B0; horizontally (average 8.81-dB variation) and from 40 & x00B0; to 140 & x00B0; vertically (average 9.43-dB variation). These eye sweeping directions, thus, connect at 90 & x00B0;. Initial calculations reveal that the optimal eye tracking function is achieved and that the tracking method is suitable for individual users.