@article{barbosa_vieira_2019,  title={On the Improvement of Multiple Circles Detection from Images using Hough Transform},  volume={20},  ISSN={2179-8451},  url={https://doi.org/10.5540/tema.2019.020.02.0331},  DOI={10.5540/tema.2019.020.02.0331},  number={2},  journal={TEMA (São Carlos)},  publisher={Sociedade Brasileira de Matemática Aplicada e Computacional},  author={BARBOSA, W.O. and VIEIRA, A.W.},  year={2019},  month={May},  pages={331–342} }