H. Gupta and O. P. Verma, “Monitoring and surveillance of urban road traffic using low altitude drone images: a deep learning approach,” Multimed. Tools Appl., vol. 81, no. 14, pp. 19683–19703, Jun. 2022, doi: 10.1007/s11042-021-11146-x. [Online]. Available: https://doi.org/10.1007/s11042-021-11146-x