F. A. da Silva, D. R. Pereira, J. F. C. Silva, A. O. Artero, and M. A. Piteri, “TSRS - A NEW APPROACH FOR TRAFFIC SIGN RECOGNITION USING THE SIFT ALGORITHM”, J. Urb. Environ. Engng, vol. 13, no. 1, pp. 59–68, Oct. 2019.