How to Build a Low-Cost Eye-Tracking System

2012 ◽  
Vol 20 (1) ◽  
pp. 18-23
Author(s):  
Davin Pavlas ◽  
Heather Lum ◽  
Eduardo Salas
Keyword(s):  
Data Analysis ◽  
Eye Movements ◽  
Eye Tracking ◽  
Scientific Community ◽  
Tracking System ◽  
Low Cost ◽  
Gaze Patterns ◽  
Tracking Technology

Eye tracking, previously the purview of well-funded laboratories, is now available to any individual who wishes to study gaze patterns. Advances in eye-tracking technology have made it possible for those with meager budgets but an abundance of motivation to engage in studies that examine participants’ eye movements and fixations. This article presents a how-to guide for creating low-cost eye-tracking solutions and includes discussion of optical hardware, tracking software, and data analysis programs. The wider availability of eye-tracking technology ensures that the broader scientific community has access to techniques that can inform design and enhance research.

Eye Movements While Reading Degraded On-Product Warnings

2007 ◽  
Vol 51 (20) ◽  
pp. 1388-1392
Author(s):  
Nathan T. Dorris ◽  
R. Brian Valimont ◽  
Eric J. Boelhouwer
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Tracking System ◽  
Fixation Time ◽  
Time On Task ◽  
Matched Pairs ◽  
Warning Label ◽  
Gaze Patterns ◽  
Total Fixation

This investigation tested whether heavily degraded warnings affected gaze patterns and resulted in longer viewing times than lightly degraded warnings. The study included sixteen participants who viewed six matched pairs of lightly and heavily degraded warnings. Eye movements were recorded using an eye tracking system while the total time on task for each warning was collected. Fixation times were also collected as participants viewed the various panels of each warning. In the second part of the experiment, legibility and participant comprehension of each warning was tested. Paired t-tests showed that total time on task, total fixation time, and message panel fixation time were consistently significantly different for three of the six pairs of warnings, such that each of the three aforementioned times increased significantly when participants were viewing a highly degraded warning label. Additionally, participants were able to comprehend all warnings presented. This study also provides evidence that eye tracking can be a useful tool in warnings research.

AN EYE TRACKING SYSTEM AND ITS APPLICATION IN AIDS FOR PEOPLE WITH SEVERE DISABILITIES

2006 ◽  
Vol 18 (06) ◽  
pp. 319-327 ◽  
Author(s):  
MU-CHUN SU ◽  
KUO-CHUNG WANG ◽  
GWO-DONG CHEN
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Tracking System ◽  
Low Cost ◽  
Severe Disabilities ◽  
Computer Access ◽  
Detection Systems ◽  
Web Camera ◽  
Potential Applications ◽  
Direction Information

The object of this paper is to present a set of techniques integrated into a low-lost eye tracking system. Eye tracking systems have many potential applications such as learning emotion monitoring systems, drivers' fatigue detection systems, etc. In this paper, we report how we use an eye tracking system to implement an "eye mouse" to provide computer access for people with severe disabilities. The proposed eye mouse allows people with severe disabilities to use their eye movements to manipulate computers. It requires only one low-cost Web camera and a personal computer. A five-stage algorithm is developed to estimate the directions of eye movements and then use the direction information to manipulate the computer. Several experiments were conducted to test the performance of the eye tracking system.

An Eye Tracking Study on Feigned Schizophrenia

2021 ◽  
Author(s):  
Francesca Ales ◽  
Luciano Giromini ◽  
Lara Warmelink ◽  
Megan Polden ◽  
Thomas Wilcockson ◽  
...  
Keyword(s):  
Data Analysis ◽  
Eye Movements ◽  
Eye Tracking ◽  
Healthy Volunteers ◽  
Full Advantage ◽  
Smooth Pursuit ◽  
Published Data ◽  
Malingering Detection ◽  
Tracking Technology ◽  
Do So

AbstractResearch on malingering detection has not yet taken full advantage of eye tracking technology. In particular, while several studies indicate that patients with schizophrenia behave notably differently from controls on specific oculomotor tasks, no study has yet investigated whether experimental participants instructed to feign could reproduce those behaviors, if coached to do so. Due to the automatic nature of eye movements, we anticipated that eye tracking analyses would help detect feigned schizophrenic problems. To test this hypothesis, we recorded the eye movements of 83 adult UK volunteers, and tested whether eye movements of healthy volunteers instructed to feign schizophrenia (n = 43) would differ from those of honest controls (n = 40), while engaging in smooth pursuit and pro- and anti-saccade tasks. Additionally, results from our investigation were also compared against previously published data observed in patients with schizophrenia performing similar oculomotor tasks. Data analysis showed that eye movements of experimental participants instructed to feign (a) only partially differed from those of controls and (b) did not closely resemble those from patients with schizophrenia reported in previously published papers. Taken together, these results suggest that examination of eye movements does have the potential to help detecting feigned schizophrenia.

scholarly journals A Fast and Effective System for Analysis of Optokinetic Waveforms with a Low-Cost Eye Tracking Device

Healthcare ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 10
Author(s):  
Chong-Bin Tsai ◽  
Wei-Yu Hung ◽  
Wei-Yen Hsu
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Eye Movement ◽  
Low Cost ◽  
Saccadic Eye Movements ◽  
Slow Phase ◽  
Eye Tracker ◽  
Effective System ◽  
Tracking Device ◽  
Traditional Approaches

Optokinetic nystagmus (OKN) is an involuntary eye movement induced by motion of a large proportion of the visual field. It consists of a “slow phase (SP)” with eye movements in the same direction as the movement of the pattern and a “fast phase (FP)” with saccadic eye movements in the opposite direction. Study of OKN can reveal valuable information in ophthalmology, neurology and psychology. However, the current commercially available high-resolution and research-grade eye tracker is usually expensive. Methods & Results: We developed a novel fast and effective system combined with a low-cost eye tracking device to accurately quantitatively measure OKN eye movement. Conclusions: The experimental results indicate that the proposed method achieves fast and promising results in comparisons with several traditional approaches.

scholarly journals B-PO04-190 A NOVEL VISUAL DIAGNOSTIC ASSESSMENT OF EXPERT AND NOVICE GAZE PATTERNS ON PEDIATRIC ELECTROCARDIOGRAMS USING EYE TRACKING TECHNOLOGY

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S356
Author(s):  
Heather Marie Giacone ◽  
Anne M. Dubin ◽  
Scott Ceresnak ◽  
Henry Chubb ◽  
William Rowland Goodyer ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Diagnostic Assessment ◽  
Gaze Patterns ◽  
Expert And Novice ◽  
Tracking Technology

Eye-Tracking Technology

2017 ◽  
pp. 283-302
Author(s):  
Chandni Parikh
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Eye Gaze ◽  
Autism Spectrum ◽  
Gaze Direction ◽  
Red Flags ◽  
High Risk Infants ◽  
Behavioral Markers ◽  
Tracking Technology ◽  
Insight Into

Eye movements and gaze direction have been utilized to make inferences about perception and cognition since the 1800s. The driving factor behind recording overt eye movements stem from the fundamental idea that one's gaze provides tremendous insight into the information processing that takes place early on during development. One of the key deficits seen in individuals diagnosed with Autism Spectrum Disorders (ASD) involves eye gaze and social attention processing. The current chapter focuses on the use of eye-tracking technology with high-risk infants who are siblings of children diagnosed with ASD in order to highlight potential bio-behavioral markers that can inform the ascertainment of red flags and atypical behaviors associated with ASD within the first few years of development.

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