Using Reference Points for Detection of Calcifications in Mammograms for Medical Active Systems. - Francisco Eduardo Martínez Pérez; César Augusto Ramírez Gamez; Alberto Núñez Varela; Sandra Nava-Muñoz; José Ignacio Nuñez-Varela; Héctor G. Pérez-González; Pedro David Arjona-Villicaña; Francisco Javier Ramírez-Aguilera (UCAmI (1), 2023)