Expression of Existence Supporting Sharing Interspatial Distance-"Maai": Development of Roving Object Integrating Partner's Shadow and Video Image. - Chikara Ishibiki; Yoshiaki Nakajima; Daisuke Matsumoto; Yoshiyuki Miwa (J. Robotics Mechatronics, 2005)

Riemann Geometry for Color Characterization and Mapping. - Jinhui Chao; Reiner Lenz; Daisuke Matsumoto; Tatsuya Nakamura (CGIV/MCS, 2008)