SIVAPRASAD, V.; KANNAN, K.; RAJAKUMAR, M. P.; SIVAPERUMAL, K.; THIAGARAJAN, R.; MANIKANDAN, T. Robust periocular recognition in training of CNN models using HOG- based gradient approach. International journal of health sciences, [S. l.], v. 6, n. S6, p. 8506–8512, 2022. DOI: 10.53730/ijhs.v6nS6.11833. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/11833. Acesso em: 10 jun. 2026.