Traffic Mirror Detection and Annotation Methods from Street Images of Open Data for Preventing Accidents at Intersections by Alert. - Da Li; Hikaru Hagura; Taichi Miyabashira; Yukiko Kawai; Shintaro Ono (ICCV (Workshops), 2023)

A Proposal of Acquiring and Analyzing Method for Distributed Litter on the Street using Smartphone Users as Passive Mobility Sensors. - Hikaru Hagura; Ryuta Yamaguchi; Tomoki Yoshihisa; Shinji Shimojo; Yukiko Kawai (SIGGRAPH Posters, 2023)

Facial Expression Analysis from Upward-view Images for Comfortable Bicycle Riding. - Da Li; Hiroto Nakagawa; Hikaru Hagura; Yukiko Kawai; Shintaro Ono (HCMA@MM, 2024)

A Predicting Method for Distributed Litter on the Street Based on Public Environmental Information. - Hikaru Hagura; Tomoki Yoshihisa; Shinji Shimojo; Yukiko Kawai (IMCOM, 2025)