Clearspeech: A display reader for the visually handicapped

Tim Morris, Paul Blenkhorn, Luke Crossey, Quang Ngo, Martin Ross, David Werner, Christina Wong

    Research output: Contribution to journalArticlepeer-review


    Many domestic appliances and much office equipment is controlled using a keypad and a small digital display. Programming such devices is problematical for the blind and visually handicapped. In this paper, we describe a device that may be used to read the displays on these devices. The device is designed to accept a description of the display being read, which specifies the types and locations of elements of the display. Images are captured using a handheld webcam. Images are processed to remove the distortions due to the camera orientation. The elements of the screen are interpreted and a suitable audio output is generated. In suitably illuminated scenes, the display data is interpreted correctly in approximately 90% of the cases investigated. © 2006 IEEE.
    Original languageEnglish
    Article number11
    Pages (from-to)492-500
    Number of pages8
    JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
    Issue number4
    Publication statusPublished - Dec 2006


    • Assistive devices
    • Audio interpretation
    • Display reader


    Dive into the research topics of 'Clearspeech: A display reader for the visually handicapped'. Together they form a unique fingerprint.

    Cite this