IbPRIA 2009 (Iberian Conference on Pattern Recognition and Image Analysis)
was the fourth edition of a series of conferences jointly organized by APRP (Associação Portuguesa de Reconhecimento de Padrões) and AERFAI (Asociacion
Espanola de Reconocimiento de Formas y Analisis de Imagenes). This year, IbPRIA was held in Povoa de Varzim, Portugal, June 10–12, 2009, and was a local joint organization of ISR (Instituto de Sistemas e Robotica), INEB (Instituto de Engenharia Biomedica) and IEETA (Instituto de Engenharia Electronica e Telematica de Aveiro). It followed the three successful previous editions hosted by the Universitat de les Illes Balears (2003), Instituto de Sistemas e Robotica and Centro de Geo-Sistemas of Instituto Superior Tecnico (2005), and the Institute of Informatics and Applications of the University of Girona (2007).
A total of 106 manuscripts, from 18 countries, were received. Each of these submissions was reviewed in a blind process by at least two reviewers, resulting
in 62 accepted papers, 33 for oral presentation and 29 for poster presentation.