The Pattern Recognition and Earth Observation (PATREO) Laboratory is interested in researching and developing new Machine Learning and Image Processing techniques. The main research applications are very related, but not restricted, to the Earth Observation issues, which include remote sensing, agriculture, ecology, and other related fields. Thus, some of our efforts are focused on Content-Based Image Retrieval, Digital Forensics Analysis, and Geographic Information Systems. The research scope of PATREO concerning the Machine Learning, Image Processing and Remote Sensing areas.