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Clearspeech: A Display Reader for the Visually Handicapped

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7 Author(s)
Morris, T. ; Sch. of Informatics, Sch. of Informatics, Manchester ; Blenkhorn, P. ; Crossey, L. ; Quang Ngo
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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

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Neural Systems and Rehabilitation Engineering, IEEE Transactions on  (Volume:14 ,  Issue: 4 )