1. College of Textiles and Clothing, Qingdao University, Qingdao 266071, China
2. Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, Beijing 100029, China
3. Centre for Elastomer Research, FOCAS, Technological University Dublin (TU Dublin), City Campus, Kevin Street, Dublin D08 NF82, Ireland
4. Centre for Medical Image Computing, University College London, London WC1V 6LJ, U.K.