Image-based indoor positioning system: fast image matching using omnidirectional panoramic images. - Hisato Kawaji; Koki Hatada; Toshihiko Yamasaki; Kiyoharu Aizawa (MPVA@MM, 2010)

Kawaluü: Macro Environment for Collaborative Surface with Dynamic Parameters using Tangible Objects. - Arika Hakoda; Koki Hatada; Jun'ichi Yura (CHI Extended Abstracts, 2018)

Group Activity Recognition to Support Collaboration in Creative Digital Space. - Bin Chen; Koki Hatada; Keiju Okabayashi; Hiroyuki Kuromiya; Ichiro Hidaka; Yoshiharu Yamamoto; Kazumasa Togami (CSCW Companion, 2019)

Real-time collaborative system based on distributed data sharing method. - Bin Chen; Kenji Nakajima; Koki Hatada; Jun'ichi Yura; Masashi Uyama; Keiju Okabayashi (IUI Companion, 2019)