Computer use by the visually impaired

Virtual computer monitor for visually-impaired users

Conventional computer display products for the visually impaired are limited by the amount of enlarged imagery that can be displayed at any one time, and by awkward methods for navigating about the scene. This paper describes a prototype system designed to address these problems by providing a head-mounted display interface which allows the user to position a cursor anywhere on an enlarged virt...

Computer Games and Visually Impaired People

Accessibility of computer games is a Challenge. Indeed, making accessible a computer game is much more difficult than making accessible a desktop application. In this paper we first define game accessibility. Then we present a number of papers published in the last decade: specific games (audiogames, tactile games etc), games designed for all, and a few works about game accessibility. Then we w...

Assistive Computer Interface for Visually Impaired Persons

A Modular Computer Vision Sonification Model for the Visually Impaired

This paper presents a Modular Computer Vision Sonification Model which is a general framework for acquisition, exploration and sonification of visual information to support visually impaired people. The model exploits techniques from Computer Vision and aims to convey as much information as possible about the image to the user, including color, edges and what we refer to as Orientation maps and...

Wayfinding and Orientation by the Visually Impaired

Finding one's way around a large, complex building like a hospital is a difficult taskat best. Add in the stress that most hospital patients and visitors experience and thetask becomes even more arduous. A decision as basic as how floors are numbered canhave important ramifications on orientation and wayfinding. A study was designed todiscover which of several feasible floor num...