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Journal Article A Biosignal-Based Human Interface Controlling a Power-Wheelchair for People with Motor Disabilities
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Authors
Ki Hong Kim, Hong Kee Kim, Jong Sung Kim, Wook Ho Son, Soo Young Lee
Issue Date
2006-02
Citation
ETRI Journal, v.28, no.1, pp.111-114
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.06.0205.0069
Project Code
05ZC1100, Development of a Vitural Reality-based Medical Therapy Technology, Jong-Sung Kim
Abstract
An alternative human interface enabling people with severe motor disabilities to control an assistive system is presented Since this interface relies on the biosignals originating from the contraction of muscles on the face during particular movements, even individuals with a paralyzed limb can use it with ease. For real-world application, a dedicated hardware module employing a general-purpose digital signal processor was implemented and its validity tested on an electrically powered wheelchair. Furthermore, an additional attempt to reduce error rates to a minimum for stable operation was also made based on the entropy information inherent in the signals during the classification phase. In the experiments, most of the five participating subjects could control the target system at their own will, and thus it is found that the proposed interface can be considered a potential alternative for the interaction of the severely disabled with electronic systems.
KSP Keywords
Assistive systems, Digital signal processor(DSP), Electronic systems, Hardware module, Motor Disabilities, Powered wheelchair, Real-world applications, Stable operation, dedicated hardware, error rate, human interface