Fecha de publicación: -- Fuente: WIPO "tomato" In some aspects, the techniques described herein relate to systems and methods for object detection using one or more processors, including: a general object detection model configured to recognize categories of objects in a plurality of images; a set of specialized object detection models each configured to recognize sub-categories within a category; and an enhanced object detection model configured to recognize categories and sub-categories of the objects in the plurality of images. One or more processors can be instructed to: train the general object detection model; train each specialized object detection model; generate, using the set of specialized object detection models, a plurality of refined training images; train an enhanced object detection model to recognize the categories and sub-categories of the objects using the refined training images; and determine the categories and sub-categories of objects in a plurality of candidate images using the trained enhanced object detection model.