Summary
|
For Full-Text PDF, please login, if you are a member of IEICE, or go to Pay Per View on menu list, if you are a nonmember of IEICE. |
|
Development of a Communication Support Device Controlled by Eye Movements and Voluntary Eye Blink Junichi HORI Koji SAKANO Yoshiaki SAITOH Publication IEICE TRANSACTIONS on Information and Systems Vol.E89-D No.6 pp.1790-1797 Publication Date: 2006/06/01 Online ISSN: 1745-1361 DOI: 10.1093/ietisy/e89-d.6.1790 Print ISSN: 0916-8532 Type of Manuscript: Special Section PAPER (Special Section on Human Communication II) Category: Vision and Image Keyword: assistive technology, communication device, electro-oculogram, eye movement, voluntary eye blink, Full Text: PDF(1MB)>>
Summary: A communication support interface controlled by eye movements and voluntary eye blink has been developed for disabled individuals with motor paralysis who cannot speak. Horizontal and vertical electro-oculograms were measured using two surface electrodes attached above and beside the dominant eye and referring to an earlobe electrode and amplified with AC-coupling in order to reduce the unnecessary drift. Four directional cursor movements --up, down, right, and left-- and one selected operation were realized by logically combining the two detected channel signals based on threshold settings specific to the individual. Letter input experiments were conducted on a virtual screen keyboard. The method's usability was enhanced by minimizing the number of electrodes and applying training to both the subject and the device. As a result, an accuracy of 90.1  3.6% and a processing speed of 7.7 1.9 letters/min. were obtained using our method. | ||||||||||
| ||||||||||
