SYSTEM FOR THE IDENTIFICATION AND QUANTIFICATION OF HELMINTH EGGS IN ENVIRONMENTAL SAMPLES

• Main Authors: Arámbula Cosío Fernando, Jiménez Cisneros Blanca Elena, Velásquez Rodríguez Gustavo Adolfo Rodrigo, Maya Rendón Catalina, BARRIOS Pérez José Antonio
• Format: Patent
• Language: English
• Published: 13.04.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

Process and system for identifying and quantifying helminth eggs in water, sludge, biosolid and/or excreta samples among others, from images comprising filtering the images with an anisotropic filter maintaining the borders of the images, obtaining filtered images; filtering the filtered images applying Laplacian of Gaussian detecting changes in the filtered images, and obtaining binarized images; separating the binarized images by means of a filtered distance field Watershed filter, obtaining the images; filtering the images eliminating objects by perimeter compactness, considering the size of the objects in the images filtered again and separating the differences to avoid false positives, obtaining images with identified objects; characterizing the objects identified in the images segmenting the objects by means of gray profiles; and classifying the characterized objects according to a statistic classifier for identifying and quantifying different species of helminth eggs.