Eyeglasses, required for functional vision by nearly half the world's population, are still needed by more than a billion people. There are a number of constraints on the provision of eyeglasses: product cost, durability, and appearance; traditional approaches to evaluating refraction; and sustainably scaling potential distribution methods. We offer our experience with an immigrant population i...

Lip segmentation is an essential stage in many multimedia systems such as video-conferencing, lip reading, or low bit rate coding communication systems. It is also useful in various image / video acquisition devices encouraged the development of many computer vision applications, such as vision -based surveillance, vision based man machine interfaces, vision-based biometrics, and so on. Hence e...

Various ocular disorders remain a major concern for medical care providers and health policy makers. Only in the US more than 6.6 million people were affected by blindness in 2011 (1). Meanwhile, even though people mostly inhabit low or moderate altitudes, about 140 million people worldwide live above 2500 meters (2). Therefore, association between various vision disorders and high altitude rem...

Social progress and demographic changes favor increased life expectancy and the number of people in situations of dependency. As a consequence, the demand for support systems for personal autonomy is increasing. This article outlines the vision @ home project, whose goal is the development of vision-based services for monitoring and recognition of the activity carried out by individuals in the ...

OBJECTIVE To assess the prevalence and causes of vision loss in Australia and to project these data into the future. DESIGN Synthesis of data from two cross-sectional population-based cohort studies--the Melbourne Visual Impairment Project and the Blue Mountains Eye Study--and extrapolation to the entire Australian population. SETTING AND PARTICIPANTS 8376 community and 533 nursing home res...

We show a learning-based method for low-level vision problems{estimating scenes from images. We generate a synthetic world of scenes and their corresponding rendered images. We model that world with a Markov network, learning the network parameters from the examples. Bayesian belief propagation allows us to e ciently nd a local maximum of the posterior probability for the scene, given the image...

Blindness and low vision are major causes of morbidity and have profound effects on the quality of life for many people. They inhibit mobility and economic well-being of the individuals affected as well as their families. Childhood blindness (CBL) is one of the challenges faced by the world generally and developing countries in particular. In industrialised countries, certain mechanisms for nor...