He is currently a Full Professor with the Computer Science Department, Università di Torino, where he coordinates research in the area of image processing and computer vision. His expertise includes wavelets, image and video coding, data compression, video error concealment, error resilient video coding, computer vision and biomedical image processing. He was the recipient of the Premio Optime by Unione Industriale di Torino in September 2000 and a Fulbright Grant in 2001 for a research period with the Department of Electrical and Computer Engineering, University of California, San Diego, USA. He participated in the ISO standardization activities on Part 11 of the JPEG2000 standard. He was associate editor of IEEE Transactions on Communications, currently he is associate editor of IEEE Transactions on Multimedia. He is a member of Moving Picture, Audio and Data Coding by Artificial Intelligence (MPAI).