Robotics and Mechatronics : Proceedings of the 6th IFToMM International Symposium on Robotics and Mechatronics (ISRM 2019) / by International Symposium on Robotics and Mechatronics (6th : 2019), Kuo, Chin-Hsing, editor, Lin, Pei-Chun, editor, Essomba, Terence, editor, Chen, Guan-Chen, editor