Fuzzy queries in multimedia database systems
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Accessibility research at the Czech Technical University
ACM SIGACCESS Accessibility and Computing
Accessibility in virtual worlds
CHI '08 Extended Abstracts on Human Factors in Computing Systems
PowerUp: an accessible virtual world
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Exploring Visual and Motor Accessibility in Navigating a Virtual World
ACM Transactions on Accessible Computing (TACCESS)
Speech based user interface for users with special needs
TSD'05 Proceedings of the 8th international conference on Text, Speech and Dialogue
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The increasing amount of new technologies (including multimedia, internet and virtual reality) allows us to use new approaches in design and implementation of applications of various kinds. Specific requirements emerge in the case of users with specific needs. One such example might be the use of 3D information in the web environment (and navigation in such an environment) by visually impaired users. Our solution provides semantic and functional description of the scene objects and inter-object relations in addition to "standard" geometric scene description. This approach permits the user to query for various information in the virtual environment (e.g. searching for a path to a specific object, searching for an object with specific properties and particularly filtering scene information). The system should allow the visually impaired user to virtually walk through the scene and query for information about the objects in a scene. In such a way they are able to obtain information that has been available to users without visual impairments. The user interface itself provides the feedback in accordance with the user's group's specific requirements - the feedback is implemented as a human readable text that can be simply accessed using one of the common accessibility tools (screen reader, Braille display etc.). The embedded module capable of providing speech output has also been implemented.