URL https://www.researchgate.net/profile/Ibrahim-Guelzim/publication/278642112/figure/fig7/AS:396373204717577@1471514144694/Modele-de-projection-unifie-pour-les-capteurs-catadioptriques-centraux.png
URL2 https://www.researchgate.net/figure/Modele-de-projection-unifie-pour-les-capteurs-catadioptriques-centraux_fig7_278642112
