In 1993 he joined the Technical University of Catalonia where he is currently Professor. He is lecturing on the area of communications, signal processing, digital image processing and image and video compression. His current research interests include image and video analysis, multiview image analysis, image and video segmentation, semantic image and video for indexing, human face detection and recognition, image and video coding, motion estimation and compensation, mathematical morphology and biomedical applications.

He has led UPC participation in the EC-funded RACE-2072 project "Mobile Audio Visual Terminal" (MAVT) from 1994 to 1995 and in the ACTS-AC098 project "Mobile Multimedia Systems" (MoMuSys) from 1995 to 2000. Within MoMuSys, he acted as Work Package Leader of the "Video Algorithms" work package that, among other tasks, implemented the MPEG-4 VM. He has lead UPC participation in the EC-funded IST-1999-20502 project "Unified intelligent access to heterogeneous audiovisual content" (Faethon) from 2001 to 2003. Currently (2003-), he is leading UPC participation in the EC-funded Network of Excellence SIMILAR where he is WP leader of the "Special Interest Group on Multimodality Analysis and Synthesis".