Counter-propagation network with variable degree variable step size LMS for single switch typing recognition.

Abstract:

:Morse code is now being harnessed for use in rehabilitation applications of augmentative-alternative communication and assistive technology, including mobility, environmental control and adapted worksite access. In this paper, Morse code is selected as a communication adaptive device for disabled persons who suffer from muscle atrophy, cerebral palsy or other severe handicaps. A stable typing rate is strictly required for Morse code to be effective as a communication tool. This restriction is a major hindrance. Therefore, a switch adaptive automatic recognition method with a high recognition rate is needed. The proposed system combines counter-propagation networks with a variable degree variable step size LMS algorithm. It is divided into five stages: space recognition, tone recognition, learning process, adaptive processing, and character recognition. Statistical analyses demonstrated that the proposed method elicited a better recognition rate in comparison to alternative methods in the literature.

journal_name

Biomed Mater Eng

authors

Yang CH,Luo CH,Yang CH,Chuang LY

subject

Has Abstract

pub_date

2004-01-01 00:00:00

pages

23-32

issue

1

eissn

0959-2989

issn

1878-3619

journal_volume

14

pub_type

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