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A User Centered Design and Prototype of a Mobile Reading Device for the Visually Impaired

Keefer, Robert B.
http://rave.ohiolink.edu/etdc/view?acc_num=wright1306329825

Abstract Details

2011, Doctor of Philosophy (PhD), Wright State University, Computer Science and Engineering PhD.
While mobile reading devices have been on the market and investigated by researchers in recent years, there is still work required to make these devices highly accessible to the visually impaired. A usability test with one such device revealed gaps in the current state of the art devices. These gaps focus mostly on the user interaction and his or her ability to quickly consume written reading material. In this dissertation a voice user interface (VUI) is presented that improves the ability of a blind user of a mobile reading device to interact with written material. The image processing techniques required to facilitate this interaction with a document image are also presented. Contributions of this research include a model of the VUI, which was validated by user tests of a prototype with visually impaired participants, a document image perspective correction technique, a document image dewarping technique, and a headline identification technique, among others. Three separate user tests with visually impaired participants were used to guide and validate the interaction research. The document image processing techniques, combined to form a document image processing pipeline, were tested on 25 document images. Comparative results from the user tests and processing of the document images are presented in this dissertation.
Nicholaos Bourbakis, PhD (Committee Chair)
Soon Chung, PhD (Committee Member)
Sundaram Narayanan, PhD (Committee Member)
Krishnaprasad Thirunarayan, PhD (Committee Member)
176 p.
Computer Science
Document Image Processing; Document Image Layout Analysis; Voice User Interface; User Interface Modeling

Recommended Citations

Citations

  • Keefer, R. B. (2011). A User Centered Design and Prototype of a Mobile Reading Device for the Visually Impaired [Doctoral dissertation, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1306329825

    APA Style (7th edition)

  • Keefer, Robert. A User Centered Design and Prototype of a Mobile Reading Device for the Visually Impaired. 2011. Wright State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1306329825.

    MLA Style (8th edition)

  • Keefer, Robert. "A User Centered Design and Prototype of a Mobile Reading Device for the Visually Impaired." Doctoral dissertation, Wright State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1306329825

    Chicago Manual of Style (17th edition)

wright1306329825
479
© 2011, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.