Abstract :
Aiming at the popularization and the application flaw in the existing Electronic Travel Aid (ETA) system, a model of intelligent ETA system named AudioGuider is designed. GPS (Global Position System), GIS (Geographic Information System), image processing technology and auditory display technology are better tied in the scheme. It can provide immediate environment information to the visually impaired users. In this system, audification technology is realized through the control of sound parameters, while the environment information transmission can also be realized by auralization, auditory icon or ear icon. Finally, we evaluate the auditory mapping projects from a usability point. The result shows that users could have a better satisfaction, and the new model can work with a higher identify rate and a faster response time as well.
Keywords :
Global Positioning System; audio signal processing; auditory displays; cartography; geographic information systems; handicapped aids; GIS; GPS; audification based electronic travel aid system; audioguider; auditory display technology; auditory mapping project; geographic information system; global positioning system; image processing technology; information transmission; visually impaired user; Audio user interfaces; Auditory displays; Control systems; Ear; Geographic Information Systems; Global Positioning System; Image processing; Intelligent systems; Time of arrival estimation; Usability; AudioGuider; audiroty display; auralization; electronic travel aid;
