Early disease detection is a major challenge in horticulture. Integrated Pest Management
(IPM) combines prophylactic, biological and physical methods to fight bioagressors of crops …

Accurate information on urban building types plays a crucial role for urban development,
planning, and management. In this paper, we apply Object-Based Image Analysis (OBIA) …

This paper presents a new approach for object categorization involving the following
aspects of cognitive vision: learning, recognition and knowledge representation. A major …

Recently, interest about security in public and private spaces has increased in favour of
social welfare. Surveillance systems are increasingly needed to provide security for citizens …

A scene description and segmentation system capable of recognising natural objects (eg
sky, trees, grass) under different outdoor conditions is presented. We propose an hybrid and …

This work presents a new object categorization method and shows how it can be used for
image retrieval. Our approach involves machine learning and knowledge representation …

A framework for the logical and statistical analysis and annotation of dynamic scenes
containing occlusion and other uncertainties is presented. This framework consists of three …

This paper presents a machine learning-based method to build knowledge bases used to
carry out surveillance tasks in environments monitored with video cameras. The method …

Object-based image analysis (OBIA) approach is an accepted and efficient method for
classifying very high resolution (VHR) datasets. The classification process relies on the …

In visual domains, such as Medicine, Meteorology and Geology, the tasks are accomplished
through intensive use of visual knowledge. In this work, we focus in an essential kind of task …