Walimbe, A., Rao, S., Sureban, A. and Shah, M. (2018) “Survey on Obstacle Detection and its Notification through an Android App for Visually Impaired People”, Asian Journal For Convergence In Technology (AJCT) ISSN -2350-1146, 3(3). Available at: http://asianssr.org/index.php/ajct/article/view/244 (Accessed: 31January2026).