Knowing what the brain is seeing in three dimensions: A novel, noninvasive, sensitive, accurate, and low-noise technique for measuring ocular torsion
Knowing what the brain is seeing in three dimensions: A novel, noninvasive, sensitive, accurate, and low-noise technique for measuring ocular torsion
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DOI：
10.1167/15.14.11
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发表时间：
2015-01-01
影响因子：
1.8
通讯作者：
Kheradmand, Amir
中科院分区：
文献类型：
--
作者：
Otero-Millan, Jorge;Roberts, Dale C.;Kheradmand, Amir
扭转眼球运动是眼球围绕视线的旋转。测量扭转对于理解大脑如何控制眼睛的位置以及它如何在三维空间中创建物体方向的真实感知至关重要。扭转对于许多前庭、神经和眼科疾病的诊断也很重要。目前，存在产生水平和垂直眼球运动的可靠测量的多种装置和方法。然而，非侵入性和可靠地测量扭转一直是一个长期的挑战，以前的方法缺乏实时能力或遭受侵入性伪影。我们提出了一种新的方法来测量眼球运动的三维使用现代计算机视觉软件（OpenCV）和虹膜识别的概念。为了测量扭转，我们使用整个虹膜的模板匹配，并自动考虑眼睑对虹膜和瞳孔的遮挡。目前的设置工作在100赫兹的噪音双眼
Torsional eye movements are rotations of the eye around the line of sight. Measuring torsion is essential to understanding how the brain controls eye position and how it creates a veridical perception of object orientation in three dimensions. Torsion is also important for diagnosis of many vestibular, neurological, and ophthalmological disorders. Currently, there are multiple devices and methods that produce reliable measurements of horizontal and vertical eye movements. Measuring torsion, however, noninvasively and reliably has been a longstanding challenge, with previous methods lacking real-time capabilities or suffering from intrusive artifacts. We propose a novel method for measuring eye movements in three dimensions using modern computer vision software (OpenCV) and concepts of iris recognition. To measure torsion, we use template matching of the entire iris and automatically account for occlusion of the iris and pupil by the eyelids. The current setup operates binocularly at 100 Hz with noise