1 Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan. michi-ya@med.nagoya-u.ac.jp.
2 Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
3 Department of Mechanical Engineering, Tokyo University of Science, Noda, Japan.
4 Image Processing Research Team, RIKEN Center for Advanced Photonics, Wako, Japan.