Research paper written by Hiroko Saito, Fumiko Matsukawa-Usami, Toshihiko Fujimori, Toshiya Kimura, Takahiro Ide, Takaki Yamamoto, Tatsuo Shibata, Kenta Onoue, Satoko Okayama, Shigenobu Yonemura, Kazuyo Misaki, Yurina Soba, Yasutaka Kakui, Masamitsu Sato, Mika Toya, and Masatoshi Takeichi.
Our high speed camera "HAS-U2" was used.
You can refer to the article from this link.