Effect of Upper-Limb Positions on Motion Pattern ... - IEEE Xplore

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Effect of Upper-Limb Positions on Motion Pattern. Recognition Using Electromyography. Liang Chen. Shenzhen Engineering Laboratory for Neurorehabilitation.
2011 4th International Congress on Image and Signal Processing

Effect of Upper-Limb Positions on Motion Pattern Recognition Using Electromyography Liang Chen Shenzhen Engineering Laboratory for Neurorehabilitation Technology of Limb Functions Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Harbin Institute of Technology Shenzhen Graduate School Shenzhen, China

Yanjuan Geng and Guanglin Li Shenzhen Engineering Laboratory for Neurorehabilitation Technology of Limb Functions Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China

Abstract—Previous studies of electromyographic (EMG) pattern recognition for neural prosthesis control mainly focused on the estimation of offline classification accuracy. Factors that may affect the performance in operating prosthesis in practice were rarely considered. In the preliminary study we investigated effects of the variation of limb positions on classification performance. Eight channels of myoelectric signals and a LDA classifier were used to identify seven classes of forearm movements in five transradial amputees. Our pilot results showed that the classification error of inter-position was about 4 times more than that of single position across the five transradial amputees (p

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