We present an extensive, in-depth analysis of the eye tracking capabilities of the Meta Quest Pro virtual reality headset using a dataset of eye movement recordings collected from 78 participants. In addition to presenting classical signal quality metrics--spatial accuracy, spatial precision and linearity--in ideal settings, we also study the impact of background luminance and headset slippage on device performance. We additionally present a user-centered analysis of eye tracking signal quality, where we highlight the potential differences in user experience as a function of device performance. This work contributes to a growing understanding of eye tracking signal quality in virtual reality headsets, where the performance of applications such as gaze-based interaction, foveated rendering, and social gaze are directly dependent on the quality of eye tracking signal.

翻译：我们基于78名参与者的眼动记录数据集，对Meta Quest Pro虚拟现实头显的眼动追踪性能进行了全面深入的分析。除了在理想环境下呈现经典信号质量指标——空间精度、空间精度稳定性和线性度——之外，我们还研究了背景亮度和头显滑移对设备性能的影响。此外，我们开展了以用户为中心的眼动追踪信号质量分析，重点揭示了设备性能差异可能导致的用户体验变化。本研究有助于深化对虚拟现实头显中眼动追踪信号质量的理解，因为注视点交互、注视点渲染和社交注视等应用的性能直接依赖于眼动追踪信号的质量。