Experimental validation of a Bayesian model of visual acuity.
نویسندگان
چکیده
Based on standard procedures used in optometry clinics, we compare measurements of visual acuity for 10 subjects (11 eyes tested) in the presence of natural ocular aberrations and different degrees of induced defocus, with the predictions given by a Bayesian model customized with aberrometric data of the eye. The absolute predictions of the model, without any adjustment, show good agreement with the experimental data, in terms of correlation and absolute error. The efficiency of the model is discussed in comparison with image quality metrics and other customized visual process models. An analysis of the importance and customization of each stage of the model is also given; it stresses the potential high predictive power from precise modeling of ocular and neural transfer functions.
منابع مشابه
The effect of Proprioceptive Neuromuscular Facilitation exercises on dynamic visual acuity and Sport performance of young basketball players
Aims: Deep sense plays a significant role in sensory control feedback, joint stability, coordination and balance. Despite the important role of vision and Proprioceptive Neuromuscular Facilitation on functional skills in athletes, a few studies have been conducted in this regard. This study aimed at investigating the effects of Proprioceptive Neuromuscular Facilitation exercises on dynamic visu...
متن کاملVisual Acuity Before and After Occlusion Therapy in Children and Adolescents (Aged 5-13 years) Amblyopia
Purpose: To evaluate the effect of occlusion therapy on visual acuity in children and adolescents (aged 5-13 years) with amblyopia. Methods: This experimental study followed a pretest-posttest design. Totally, 72 people with amblyopic eyes (visual acuity between 20/100 and 20/25) were selected through convenient sampling. The visual acuity was assessed at 1, 3, and 6 months after starting occlu...
متن کاملA Quantitative Investigation on the Effect of Edge Enhancement for Improving Visual Acuity at Different Levels of Contrast
Background: The major limitation in human vision is refractive error. Auxiliary equipment and methods for these people are not always available. In addition, limited range of accommodation in adult people when switching from a far point to a near point is not simply possible. In this paper, we are looking for solutions to use the facilities of digital image processing and displaying to improve ...
متن کاملA Validation Test Naive Bayesian Classification Algorithm and Probit Regression as Prediction Models for Managerial Overconfidence in Iran's Capital Market
Corporate directors are influenced by overconfidence, which is one of the personality traits of individuals; it may take irrational decisions that will have a significant impact on the company's performance in the long run. The purpose of this paper is to validate and compare the Naive Bayesian Classification algorithm and probit regression in the prediction of Management's overconfident at pre...
متن کاملحدت بینایی و عوامل مؤثر بر آن در زنان قالیباف: روستای فردو شهرستان قم
Background: Healthy vision of workers is one of the important elements in carpet weaving industry which has essential role in improving of the job quality and efficiency. Visual acuity is the primary outcome measure in most studies involving eye diseases. Ihe aim of this study was determination of visual acuity and its effective factors in women carpet weaver in fordu rural area of Qom has ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of vision
دوره 9 7 شماره
صفحات -
تاریخ انتشار 2009