Xavier Giro-i-Nieto is an assistant professor at the Universitat Politecnica de Catalunya (UPC). He graduated in Electrical Engineering studies at ETSETB (UPC) in 2000, after completing his master thesis on image compression at the Vrije Universiteit in Brussels (VUB) under the direction of Professor Peter Schelkens. In 2001 he worked in the digital television group of Sony Brussels, before returning to Barcelona and joining the Image Processing Group at the UPC. In 2003, he started teaching courses in Electrical Engineering degress at the EET and ETSETB schools from UPC. He obtained his Phd on image retrieval in 2012, under the supervision by Professor Ferran Marqués from UPC and Professor Shih-Fu Chang from Columbia University. In 2008, 2009, 2011 and 2012, he visited the Digital Video and MultiMedia laboratory at Columbia University, in New York. ©