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arXiv 1903.04047cs.HC
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SacCalib:使用扫视眼球运动减少固定眼动仪的校准失真

SacCalib: Reducing Calibration Distortion for Stationary Eye Trackers Using Saccadic Eye Movements

Michael Xuelin Huang, Andreas Bulling

摘要:

最近的方法来自动校准固定眼动仪被证明可以有效地减少固有的校准失真。但是,这些方法需要额外的信息,如鼠标点击或屏幕上的内容。我们提出了第一种方法,只需要用户的眼球运动,以减少在背景中的校准失真,而用户自然地看界面。我们的方法利用校准失真使直线扫视轨迹在扫视起点和终点之间出现弯曲。我们表明,这种弯曲的效果是系统的和扭曲的凝视投影平面的结果。为了减轻校准失真,我们的方法undistorts这个平面拉直眼跳轨迹使用图像扭曲。我们表明,这种方法改善了常见的六点校准,并有希望减少失真。因此,它提供了一种非侵入性的解决方案,以缓解眼动仪在长期使用期间的准确性下降。

英文摘要:

Recent methods to automatically calibrate stationary eye trackers were shown to effectively reduce inherent calibration distortion. However, these methods require additional information, such as mouse clicks or on-screen content. We propose the first method that only requires users' eye movements to reduce calibration distortion in the background while users naturally look at an interface. Our method exploits that calibration distortion makes straight saccade trajectories appear curved between the saccadic start and end points. We show that this curving effect is systematic and the result of distorted gaze projection plane. To mitigate calibration distortion, our method undistorts this plane by straightening saccade trajectories using image warping. We show that this approach improves over the common six-point calibration and is promising for reducing distortion. As such, it provides a non-intrusive solution to alleviating accuracy decrease of eye tracker during long-term use.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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