Wu Juan, born in 1978. She received her Ph. D degree in School of Instrument Science and Engineering of Southeast University in 2005. She also received her B.S. and M.S. degrees from Southeast University in 1999 and 2002, respectively. Her research interests include telpresence and haptic rendering in virtual reality.To whom correspondence should be addressed. E-mail: juanwuseu @ seu. edu. cn, a.g. song@ sell. edu. on, ljq@ seu. edu. cn