Affine Invariant Recognition of Characters by Progressive Pruning. - Akira Horimatsu; Ryo Niwa; Masakazu Iwamura; Koichi Kise; Seiichi Uchida; Shinichiro Omachi (Document Analysis Systems, 2008)

Layout-free dewarping of planar document images. - Masakazu Iwamura; Ryo Niwa; Akira Horimatsu; Koichi Kise; Seiichi Uchida; Shinichiro Omachi (DRR, 2009)

Simulation Model with Side Trips at a Large-Scale Event. - Ryo Niwa; Shunki Takami; Shusuke Shigenaka; Masaki Onishi; Wataru Naito; Tetsuo Yasutaka (AAMAS, 2023)

Proximity Network for Visualizing Infection Risks of Pedestrian Behavior at Large-Scale Events. - Sayaka Morikoshi; Ryo Niwa; Shunki Takami; Masaki Onishi; Takayuki Itoh (IEEE Big Data, 2023)

Scenario Generation Based on a Gaussian Mixture Model for the Stochastic Optimization of Crowd Control. - Ryo Niwa; Shunki Takami; Shusuke Shigenaka; Masaki Onishi (ITSC, 2024)