CBMI 2011 9th International Workshop on Content-Based Multimedia Indexing Madrid, Spain http://www-vpu.eps.uam.es/cbmi2011 13-15 June 2011 Following the eight successful previous events of CBMI (Toulouse 1999, Brescia 2001, Rennes 2003, Riga 2005, Bordeaux 2007, London 2008, Chania 2009 and Grenoble 2010), the Video Processing and Understanding Lab (VPULab) and the Information Retrieval Group (IRG) at Universidad Autónoma de Madrid will organize the next CBMI event. CBMI 2011 aims at bringing together the various communities involved in the different aspects of Content-Based Multimedia indexing, retrieval, browsing and presentation.