Virtual worlds have become very popular in the last decade and now these simulated environments have tens of millions of active users worldwide. Users benefit from virtual worlds in many different areas including social interaction, gaming, education and business. However, for users with visual impairments, accessing virtual worlds and benefiting from its facilities is rather challenging because of a number of important accessibility barriers. Our previous research effort, TextSL, has overcome perhaps the biggest barrier by providing a screen-reader accessible interface for individuals with visual impairments. Nevertheless, problems arising because of the limitations of a text-based desktop interface, challenges in textually describing a virtual scene and lack of reliable meta-data stand in front of our ultimate aim of enabling accessibility in virtual worlds. This thesis presents our contribution to virtual world accessibility by (1) providing a more accessible, portable and feature-rich virtual world interface; (2) proposing a method for generating efficient textual feedback for highly graphical environments; (3) analyzing and evaluating a hybrid virtual object labeling approach that benefits from machine learning and human computation.
|School||UNIVERSITY OF NEVADA, RENO|
|Subjects||Computer engineering; Computer science|
About ProQuest Dissertations & Theses
With nearly 4 million records, the ProQuest Dissertations & Theses (PQDT) Global database is the most comprehensive collection of dissertations and theses in the world. It is the database of record for graduate research.
PQDT Global combines content from a range of the world's premier universities - from the Ivy League to the Russell Group. Of the nearly 4 million graduate works included in the database, ProQuest offers more than 2.5 million in full text formats. Of those, over 1.7 million are available in PDF format. More than 90,000 dissertations and theses are added to the database each year.