Effects of Video Filters for Learning an Action Recognition Model for Construction Machinery from Simulated Training Data. - Jinhyeok Sim; Jun Younes Louhi Kasahara; Shota Chikushi; Keiji Nagatani; Takumi Chiba; Kazuhiro Chayama; Atsushi Yamashita; Hajime Asama (SII, 2021)