Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China.
Behav Res Methods. 2024 Sep;56(6):5771-5787. doi: 10.3758/s13428-023-02310-2. Epub 2024 Jan 2.
Most commercially available eye-tracking devices rely on video cameras and image processing algorithms to track gaze. Despite this, emerging technologies are entering the field, making high-speed, cameraless eye-tracking more accessible. In this study, a series of tests were conducted to compare the data quality of MEMS-based eye-tracking glasses (AdHawk MindLink) with three widely used camera-based eye-tracking devices (EyeLink Portable Duo, Tobii Pro Glasses 2, and SMI Eye Tracking Glasses 2). The data quality measures assessed in these tests included accuracy, precision, data loss, and system latency. The results suggest that, overall, the data quality of the eye-tracking glasses was lower compared to that of a desktop EyeLink Portable Duo eye-tracker. Among the eye-tracking glasses, the accuracy and precision of the MindLink eye-tracking glasses were either higher or on par with those of Tobii Pro Glasses 2 and SMI Eye Tracking Glasses 2. The system latency of MindLink was approximately 9 ms, significantly lower than that of camera-based eye-tracking devices found in VR goggles. These results suggest that the MindLink eye-tracking glasses show promise for research applications where high sampling rates and low latency are preferred.
大多数市售的眼动追踪设备依赖于摄像机和图像处理算法来跟踪注视点。尽管如此，新兴技术也正在进入该领域，使得高速、无摄像机的眼动追踪变得更加容易实现。在这项研究中，进行了一系列测试，以比较基于 MEMS 的眼动追踪眼镜（AdHawk MindLink）与三种广泛使用的基于摄像机的眼动追踪设备（EyeLink Portable Duo、Tobii Pro Glasses 2 和 SMI Eye Tracking Glasses 2）的数据质量。这些测试中评估的数据质量指标包括准确性、精度、数据丢失和系统延迟。结果表明，总体而言，与桌面型 EyeLink Portable Duo 眼动追踪器相比，眼动追踪眼镜的数据质量较低。在眼动追踪眼镜中，MindLink 眼动追踪眼镜的准确性和精度要么更高，要么与 Tobii Pro Glasses 2 和 SMI Eye Tracking Glasses 2 相当。MindLink 的系统延迟约为 9 毫秒，明显低于 VR 护目镜中发现的基于摄像机的眼动追踪设备。这些结果表明，MindLink 眼动追踪眼镜在需要高采样率和低延迟的研究应用中具有潜力。
