@article{marcato junior_moraes_tommaselli_2015,  title={EXPERIMENTAL ASSESSMENT OF TECHNIQUES FOR FISHEYE CAMERA CALIBRATION  },  volume={21},  ISSN={1982-2170},  url={https://doi.org/10.1590/S1982-21702015000300036},  DOI={10.1590/S1982-21702015000300036},  number={3},  journal={Boletim de Ciências Geodésicas},  publisher={Universidade Federal do Paraná},  author={Marcato Junior, José and Moraes, Marcus Vinícius Antunes de and Tommaselli, Antonio Maria Garcia},  year={2015},  month={Jul},  pages={637–651} }