Abstract
The number of individuals who suffer from visual impairment is increasing rapidly. The most significant barrier to improving the lives of the blind and visually impaired people is their inability to navigate independently and safely. Indoor navigation systems for blind and visually impaired people aim to guide them in navigating independently in familiar and unfamiliar environments. Our system aims to provide an assistive technology for blind and visually impaired individuals by exploiting popular existing technologies that are often used by blind individuals, such as the smartphone. The system provides users with guidance statements that help them navigate from their current positions to desired destinations. The system consists of four main components: mapping, positioning, navigation, and interface. In order to implement these components, three main applications need to be developed: application in localization server, application in communication server, and application in smartphone, each of which is located in a different place but connected to the others. Functionalities test and blind test were conducted to evaluate the system. The system proved its ability to aid blind individuals effectively.
Highlights
Navigation is the process of determining the position of a user in order to find paths and guide the user to any desirable destinations for either indoor or outdoor environments
An indoor navigation system consists of four main components: positioning, path planning, mapping, and user interface
Some indoor positioning systems (IPS) require a high degree of accuracy compared with outdoor positioning systems that run in small areas with the existence of some obstacles [7]
Summary
Navigation is the process of determining the position of a user in order to find paths and guide the user to any desirable destinations for either indoor or outdoor environments. Studies are focusing on developing assistive technology for blind and visually impaired individuals to help them navigate, move, and travel independently and safely. This technology should be able to describe the surrounding environment for blind people in effective and efficient ways. The third fact concerns the lack of such systems to aid Arabicspeaking blind and visually impaired individuals Based on these facts, the proposed system aims to develop an indoor navigation system tailored to Arabic-speaking users (but which can support many other languages) that helps Arabic-speaking blind and visually impaired individuals to navigate and independently inside buildings using their smartphones. (ii) Providing an assistive system to solve indoor navigation problems for blind and visually impaired individuals, which exploits and integrates current technologies such as smartphones and ultra wideband (UWB).
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