Search

Colour forms an essential element of day-to-day life for most people, but at least 5% of the world have Impaired Colour Vision (ICV) - seeing fewer colours than everyone else. Those with typical colour vision find it difficult to understand how people with ICV perceive colour, leading to misunderstanding and challenges for people with ICV. To help improve understanding, personalized simulations of ICV have been developed, but are computationally demanding (so limited to static images), which limits the value of these simulations. To address this, we extended personalized ICV simulations to work in real time on a mobile device to allow people with typical colour vision greater freedom in exploring ICV. To validate our approach, we compared our real-time simulation technique to an existing adjustable simulation technique and found general agreement between the two. We then deployed three real-time personalized ICV simulations to nine people with typical colour vision, encouraging them to take photos of interesting colour situations. In just over one week, participants recorded over 450 real-world images of situations where their simulation presented a distinct challenge for their respective ICV participant. Through a questionnaire and discussion of photos with participants, we found that our solution provides a valuable mechanism for building understanding of ICV for people with typical colour vision. [ABSTRACT FROM AUTHOR]

In agreement with the vision of life in harmony with nature brings up new areas associated with the biophile focus in education. The author connects its characteristic with environmental access in intention of eco-social theories of education. She also suggests the possibility of its development. She presents the possibility of a gradual transition from the anti-environmental to the proenvironmental orientation in primary school. She draws attention to the influence of a teacher's beliefs with regard to biophile oriented education on psycho-didactic transformation of teaching and the mastery thereof from the onto-didactic perspective. [ABSTRACT FROM AUTHOR]

At the moment several models of the human eye exist, nevertheless the gradient index models of the human lens (crystalline) have received little attention in optometry and vision sciences, although they consider how the refractive index and the refracting power can change with the accommodation. On the other hand, in study fields like ophthalmology and optometry, exist cases where there is a lack of information about the factors that influence the change of refractive power and therefore the focal length of the eye. By such reason, in this paper we present a model of the human eye based on the ABCD matrix in order to describe the propagation of light rays, that can be understood by professional people in optics, ophthalmology and optometry, and the dispersions of the different ocular mediums are taken into account,. The aim of the model is to obtain data about the refractive power of the eye under different considerations, such as: changes in wavelength, radius of curvature and thicknesses of the ocular mediums. We present results of simulations in Matlab of our model, assuming that the object is punctual and is placed to a certain distance of the eye, and considering at the beginning to the crystalline like a medium with fixed refractive index, and after like a gradient lens. By means of graphs, we show the total refractive power of the eye and its form and type of dependence with respect to variations in radius of curvature and thicknesses of the cornea and crystalline, as well as variations in the thickness of the previous and later cameras. [ABSTRACT FROM AUTHOR]

The HandSight project investigates how wearable micro-cameras can be used to augment a blind or visually impaired user—s sense of touch with computer vision. Our goal is to support an array of activities of daily living by sensing and feeding back non-tactile information (e.g., color, printed text, patterns) about an object as it is touched. In this poster paper, we provide an overview of the project, our current proof-of-concept prototype, and a summary of findings from finger-based text reading studies. As this is an early-stage project, we also enumerate current open questions. [ABSTRACT FROM AUTHOR]