Analysis of Soft Data for Mass Provision of Stereoacuity Testing Through a Serious Game for Health

Ushaw, Gary; Sharp, Craig; Hugill, Jessica; Rafiq, Sheima; Black, Carla; Casanova, Therese; Vancleef, Kathleen; Read, Jenny C. A.; Morgan, Graham

doi:10.1145/3079452.3079496

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…The front camera is used to monitor the viewing distance and correct the stimulus for changes in viewing distance, meaning that patients are free to hold the device how they wish rather than requiring clinician intervention to maintain the correct distance. Most importantly, the stereotest task is embedded in a fun game that uses colors, sounds, and animation to keep children engaged and responsive 18. We believe that this combination of features offers unique advantages, which are not achieved either by current clinical stereotests or the research tests described in the previous paragraphs.…”

Section: Introductionmentioning

confidence: 99%

ASTEROID: A New Clinical Stereotest on an Autostereo 3D Tablet

Vancleef

Serrano‐Pedraza

Sharp

et al. 2019

Trans. Vis. Sci. Tech.

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Purpose To describe a new stereotest in the form of a game on an autostereoscopic tablet computer designed to be suitable for use in the eye clinic and present data on its reliability and the distribution of stereo thresholds in adults. Methods Test stimuli were four dynamic random-dot stereograms, one of which contained a disparate target. Feedback was given after each trial presentation. A Bayesian adaptive staircase adjusted target disparity. Threshold was estimated from the mean of the posterior distribution after 20 responses. Viewing distance was monitored via a forehead sticker viewed by the tablet's front camera, and screen parallax was adjusted dynamically so as to achieve the desired retinal disparity. Results The tablet must be viewed at a distance of greater than ∼35 cm to produce a good depth percept. Log thresholds were roughly normally distributed with a mean of 1.75 log 10 arcsec = 56 arcsec and SD of 0.34 log 10 arcsec = a factor of 2.2. The standard deviation agrees with previous studies, but ASTEROID thresholds are approximately 1.5 times higher than a similar stereotest on stereoscopic 3D TV or on Randot Preschool stereotests. Pearson correlation between successive tests in same observer was 0.80. Bland-Altman 95% limits of reliability were ±0.64 log 10 arcsec = a factor of 4.3, corresponding to an SD of 0.32 log 10 arcsec on individual threshold estimates. This is similar to other stereotests and close to the statistical limit for 20 responses. Conclusions ASTEROID is reliable, easy, and portable and thus well-suited for clinical stereoacuity measurements. Translational Relevance New 3D digital technology means that research-quality psychophysical measurement of stereoacuity is now feasible in the clinic.

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Section: Introductionmentioning

confidence: 99%

ASTEROID: A New Clinical Stereotest on an Autostereo 3D Tablet

Vancleef

Serrano‐Pedraza

Sharp

et al. 2019

Trans. Vis. Sci. Tech.

Self Cite

View full text Add to dashboard Cite

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“…We found that Staircase algorithm is often used in the literature, with some minimal differences. In papers [17,10,16,15], stereoacuity is measured using staircase, the disparity is increased/decreased of one level. The disparity is increased of one level and decreased of two levels in paper [6].…”

Section: Related Workmentioning

confidence: 99%

Evaluation of Algorithms to Measure a Psychophysical Threshold Using Digital Applications

Bonfanti

Gargantini

2022

Biomedical Engineering Systems and Technologies

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The use of digital applications like in mobile phone or on the web to perform psychophysical measurements led to the introduction of algorithms to guide the users in test execution. In this paper we show four algorithms, two already well known: STRICTN and PEST, and a two that we propose: PESTN and BESTN. All the algorithms aim at estimating the level of a psychophysical capability by performing a sequence of simple tests; starting from initial level N, the test is executed until the target level is reached. They differ in the choice of the next steps in the sequences and the stopping condition. We have simulated the application of the algorithms and we have compared them by answering a set of research questions. Finally, we provide guidelines to choose the best algorithm based on the test goal. We found that while STRICTN provides optimal results, it requires the largest number of steps, and this may hinder its use; PESTN can overcome these limits without compromising the final results.

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“…Also, Ushaw et al proved the help given by serious games for health. Their game for measuring the stereoacuity of young children has been tested by an initial user group and was proven successful, although a testing protocol and rapid analysis of the data is needed [22]. In this paper, our main research objective is immersive VR and serious games in healthcare, more specifically in the rapid assessment and treatment of acute stroke, are relatively common emergency neurological disease.…”

Section: Serious Games In Healthcarementioning

confidence: 99%

Learning Capacity in Simulated Virtual Neurological Procedures

Mancosu¹,

Czanner²,

Punter³

2020

Computer Science Research Notes

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In recent years, the use of Virtual Reality (VR) has skyrocketed in many fields. From videogames to education, the popularity of this technology is well known also thanks to its affordability and the growing number of available content. An immersive approach and the correct use of gamification have been proven to be valuable tools for learning in different fields. There are many examples of the adoption of VR application also in the healthcare setting not only for learning purposes but also for patients' rehabilitation. This paper is intended to list some existing works and then present our project for an immersive serious game with the aim of enhancing the training of healthcare workers for the assessment of stroke patients.

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Analysis of Soft Data for Mass Provision of Stereoacuity Testing Through a Serious Game for Health

Cited by 5 publications

References 9 publications

ASTEROID: A New Clinical Stereotest on an Autostereo 3D Tablet

ASTEROID: A New Clinical Stereotest on an Autostereo 3D Tablet

Evaluation of Algorithms to Measure a Psychophysical Threshold Using Digital Applications

Learning Capacity in Simulated Virtual Neurological Procedures

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