Projects

  • Completed

    Integration and Segregation

    Traditionally, smooth pursuit research has explored how eye movements are generated to follow small, isolated targets that fit within the fovea. Objects in a natural scene, however, are often larger and extend to peripheral retina. They also have components that move in different directions or at different speeds (e.g., wings, legs). To generate a single velocity command for smooth pursuit, motion information from the components must be integrated. Simultaneously, it may be necessary to attend to features of the object while pursuing it.

  • Completed

    Video-Based Speech Enhancement for Persons with Hearing and Vision Loss

    Observing the visual cues from a speaker such as the shape of the lips and facial expression can greatly improve the speech comprehension capabilities of a person with hearing loss. However, concurrent vision loss can lead to a significant loss in speech perception. We propose developing a prototype device that utilizes a video camera in addition to audio input to enhance the speech signal from a target speaker in everyday situations.

  • Inactive
  • Inactive

    Oculomotor Control

    The binocular coordination of movements of the eyes is a complex issue controlled by many brainstem nuclei, and is subject to a wide variety of forms of disruption by traumatic brain injury and oculomotor muscles disorders.

  • Inactive

    Neurodynamics of Braille Reading

    [Under construction]

  • Inactive

    The Kinematics of Braille Reading

    [Under construction]

  • Inactive
    Low Vision Support Group Logo

    Low Vision Support Group

    Join Dr. Don Fletcher, one of the world’s leading authorities on Low Vision Rehabilitation, to share experiences and learn about the things that help you maintain a full and happy life while living with low vision.

  • Inactive

    Braille, Assistive Technology, and Reading Comprehension

    This project explores the impact of presentation mode (braille vs. audio) and using different assistive technology (i.e., refreshable braille displays and screen reader) on reading comprehension ability.

  • Inactive
    vov9 - 4b

    My Vision on Vision

    These short chapters summarize insights that I have gained from more than four decades working in vision rehabilitation.

    They provide a broader perspective that may be missing in our daily routines, when focused on specific details.

    Vision involves much more than visual acuity alone. Vision serves our understanding of the environment and our ability to interact with it. To improve all aspects of that interaction is the mission of Vision Rehabilitation.

  • Inactive
    Black and white image of Golden Gate Bridge in fog. Text: Be descriptive, be brief, be part of the solution.

    Describeathon 2019 Announced!

    Join Describeathon 2019! Help make YouTube videos more accessible to blind viewers by adding your voice to this day of description.

    Use YouDescribe, our free web-based description tool, to describe the visuals of your favorite YouTube videos and have fun doing it!

  • Inactive
    overTHERE icon: Globe image with pointing finger

    overTHERE

    overTHERE is a virtual Talking Signs iPhone app for blind and visually-impaired pedestrians that demonstrates a powerful audio/haptic interface to location information about businesses and other points of interest.

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