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As part of an evaluation process of user experience realism in a Virtual Reality (VR) system, we focus in this paper on one of the core characteristics of vision: the relationship between contrast and luminance. The experiment aims at validating in VR reaction time predictions given by Rea and Ouellette's model. The subjects have to distinguish, as fast as they can, a target object from an uniform background. Our results did not match the predictions of the model. Our subjects showed higher performance in performing the task than expected. At low level of contrast, our subjects could easily perceive a target they should not have been able to see at all. This is explained by the size of the visual field surrounding the target: at low level of visibility, the larger the surrounding, the easier perception the is. We conclude that the Rea and Ouellette's model could be applied in VR if a specific visual field size factor was added.
This article was published in the following journal.
Name: IEEE transactions on visualization and computer graphics
This study was designed to examine the feasibility of immersive virtual reality (VR) mirror therapy for upper limb paresis after stroke using a head-mounted display, and provide preliminary evidence o...
The propagation of augmented reality (AR) and virtual reality (VR) applications that leverage smartphone technology has increased along with the ubiquity of smartphone adoption. Although AR and VR tec...
To estimate the effect of a virtual reality (VR) anatomical model (VisCubeSX™) on OBGYN residents' knowledge of female pelvic floor anatomy compared to a traditional curriculum.
To assess the efficacy of immersive virtual reality surgical simulator (IVRSS) training on pedicle screw placement (PSP) in surgical graduate students.
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In this study, the investigators examine the cognitive load and performance of a laparoscopic procedure in immersive virtual reality and controlled virtual reality in a randomized, control...
Investigating how neuropathic limb pain, including phantom limb pain or complex regional pain syndrome, is affected by virtual reality. While several studies have looked into virtual reali...
Older adult participants will complete eight immersive virtual reality (VR) sessions with the researcher, within five weeks (no more than two sessions per week may be scheduled). The scree...
To construct and evaluate an immersive 3D simulation to familiarize patients with the pre-operative experience, and investigate whether A) immersive 3D virtual reality video can reduce pre...
Here we propose a pilot study to examine the feasibility of utilizing immersive virtual reality to reduce procedural anxiety in children undergoing non-facial laceration repair in the Pedi...
Treatment technique in a virtual environment which allows the participant to experience a sense of presence in an immersive, computer-generated, three-dimensional, interactive environment that minimizes avoidance behavior and facilitates emotional involvement. (from Curr Psychiatry Rep (2010) 12:298)
Application of tests and examinations to identify visual defects or vision disorders occurring in specific populations, as in school children, the elderly, etc. It is differentiated from VISION TESTS, which are given to evaluate/measure individual visual performance not related to a specific population.
Using computer technology to create and maintain an environment and project a user's physical presence in that environment allowing the user to interact with it.
Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc.
Coded listings of physician or other professional services using units that indicate the relative value of the various services they perform. They take into account time, skill, and overhead cost required for each service, but generally do not consider the relative cost-effectiveness. Appropriate conversion factors can be used to translate the abstract units of the relative value scales into dollar fees for each service based on work expended, practice costs, and training costs.