UNIVERSITY OF HERTFORDSHIRE COMPUTER SCIENCE RESEARCH COLLOQUIUM presents "Adaptive Myoelectric Human-Machine Interface Applied for Rehabilitation and Assisting Robots" Dr. M. Reza Asghari Oskoei (School of Computer Science, University of Hertfordshire) 21 October 2009 (Wednesday) Lecture Theatre E351 Hatfield, College Lane Campus 3 - 4 pm Everyone is Welcome to Attend Refreshments will be available Abstract: Since most disabled people have problems manipulating current assistive robots and rehabilitation devices that employ traditional user interfaces, such as a joystick and/or keyboard, they need more advanced hands-free human-machine interfaces (HMIs). Surface myoelectric signal (MES) is a biological signal collected non-invasively from surface of the skin covering the muscles, and contains rich information to identify neuromuscular activities. A myoelectric HMI uses MES as an input signal to recognize various patterns of muscular activities and employs them to produce the effect of user's intention on its output. Due to time-related changes in MES patterns, predominantly caused by muscles fatigue, the HMI performance declines gradually. This phenomenon necessitates an adaptive scheme that involves modifying the control criteria during long-term operation. --------------------------------------------------- Hertfordshire Computer Science Research Colloquium http://homepages.feis.herts.ac.uk/~nehaniv/colloq