Research paper written by Ryo Futahashi, Yumi Yamahama, Migaku Kawaguchi, Naoki Mori, Daisuke Ishii, Genta Okude, Yuji Hirai, Ryouka Kawahara-Miki, Kazutoshi Yoshitake, Shunsuke Yajima, Takahiko Hariyama, and Takema Fukatsu.
Our high speed camera "HAS-220" was used.
You can refer to the article from this link.