论文标题
非电感磁性眼球跟踪器：从偶极子跟踪到凝视检索
A non-inductive magnetic eye-tracker: from dipole tracking to gaze retrieval
论文作者
论文摘要
我们分析了可以从创新可穿戴眼痕迹产生的跟踪参数中检索的信息。后者基于永久性标记的角膜镜头和一系列磁磁检测器，这些探测器测量了眼部接近的多个位置的磁场场。我们证明，尽管由于测得的场的轴向对称性而缺少信息，但生理约束或测量条件使得可以推断出完整的眼置数据。还评估并简要讨论了使用当前原型设备实现的角度精度和准确性。结果表明，所考虑的仪器适合作为一种新的，中等侵入性的医学诊断，用于表征眼动和相关疾病。
We analyze the information that can be retrieved from the tracking parameters produced by an innovative wearable eye tracker. The latter is based on a permanent-magnet marked corneal lens and by an array of magnetoresistive detectors that measure the magnetostatic field in several positions in the eye proximity. We demonstrate that, despite missing information due to the axial symmetry of the measured field, physiological constraints or measurement conditions make possible to infer complete eye-pose data. Angular precision and accuracy achieved with the current prototypical device are also assessed and briefly discussed. The results show that the instrumentation considered is suitable as a new, moderately invasive medical diagnostics for the characterization of ocular movements and associated disorders.
