Object-Gaze Distance: Quantifying Near- Peripheral Gaze Behavior in Real-World Applications.

IF 1.3 4区 心理学 Q3 OPHTHALMOLOGY Journal of Eye Movement Research Pub Date : 2021-05-19 DOI:10.16910/jemr.14.1.5
Felix S Wang, Julian Wolf, Mazda Farshad, Mirko Meboldt, Quentin Lohmeyer
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引用次数: 4

Abstract

Eye tracking (ET) has shown to reveal the wearer's cognitive processes using the measurement of the central point of foveal vision. However, traditional ET evaluation methods have not been able to take into account the wearers' use of the peripheral field of vision. We propose an algorithmic enhancement to a state-of-the-art ET analysis method, the Object- Gaze Distance (OGD), which additionally allows the quantification of near-peripheral gaze behavior in complex real-world environments. The algorithm uses machine learning for area of interest (AOI) detection and computes the minimal 2D Euclidean pixel distance to the gaze point, creating a continuous gaze-based time-series. Based on an evaluation of two AOIs in a real surgical procedure, the results show that a considerable increase of interpretable fixation data from 23.8 % to 78.3 % of AOI screw and from 4.5 % to 67.2 % of AOI screwdriver was achieved, when incorporating the near-peripheral field of vision. Additionally, the evaluation of a multi-OGD time series representation has shown the potential to reveal novel gaze patterns, which may provide a more accurate depiction of human gaze behavior in multi-object environments.

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对象凝视距离:量化近周边凝视行为在现实世界的应用。
眼动追踪(ET)通过测量中央凹视觉中心点来揭示佩戴者的认知过程。然而,传统的ET评估方法未能考虑到佩戴者对周边视野的使用情况。我们提出了一种对最先进的ET分析方法的算法增强,即对象-凝视距离(OGD),该方法还允许在复杂的现实世界环境中量化近周边凝视行为。该算法使用机器学习进行感兴趣区域(AOI)检测,并计算到凝视点的最小二维欧几里德像素距离,从而创建一个连续的基于凝视的时间序列。基于对两个AOI的实际手术过程的评估,结果表明,当合并近周围视野时,AOI螺钉的可解释固定数据从23.8%增加到78.3%,AOI螺丝刀的可解释固定数据从4.5%增加到67.2%。此外,对多ogd时间序列表示的评估显示出揭示新的凝视模式的潜力,这可能提供对多目标环境中人类凝视行为的更准确描述。
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来源期刊
CiteScore
2.90
自引率
33.30%
发文量
10
审稿时长
10 weeks
期刊介绍: The Journal of Eye Movement Research is an open-access, peer-reviewed scientific periodical devoted to all aspects of oculomotor functioning including methodology of eye recording, neurophysiological and cognitive models, attention, reading, as well as applications in neurology, ergonomy, media research and other areas,
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