Examining of Shallow Autoencoder on Black-box Attack against Face Recognition. - Vo Ngoc Khoi Nguyen; Takamichi Terada; Masakatsu Nishigaki; Tetsushi Ohki (APSIPA ASC, 2021)

Improving Robustness and Visibility of Adversarial CAPTCHA Using Low-Frequency Perturbation. - Takamichi Terada; Vo Ngoc Khoi Nguyen; Masakatsu Nishigaki; Tetsushi Ohki (AINA (2), 2022)