Recent Activities

• Author of Machine Learning in Computer Vision, Springer Verlag, ISBN 1-4020-3274-9, May 2005
• Author of Robust Computer Vision - Theory and Applications, Kluwer Academic Publishers, ISBN 1-4020-1293-4, April 2003

• Guest Editor for the ACM Transactions on Multimedia Computing Communication and Applications Special Issue on Multimedia Analysis, Vol 4, No 4, 2008.
• Guest Editor for Computer Vision and Image Understanding, Special Issue on Similarity Matching, Vol 110, No 3, June 2008.
• Guest Editor for the Image and Vision Computing Journal Special Issue on Human-computer Interaction, Vol 25, No. 12, December 2007.
• Guest Editor for the IEEE Computer, Special Issue on Human-centered Computing, Vol 40, No 5, May 2007.
• Guest Editor for the ACM Transactions on Multimedia Computing Communication and Applications Special Issue on Multimedia Information Retrieval, Vol 2, No.1 February 2006.
• Guest Editor for the ACM Multimedia Systems Journal Special Issue on Systems and Architectures of Multimedia Information Retrieval, Vol 10, No. 6, October 2005.
• Guest Editor for Computer Vision and Image Understanding Special Issue on Video Retrieval and Summarization, Vol. 92, No. 2-3, November/December, 2003

• General Chair of the International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), London, 6-8 May 2009.
• Workshop Chair of the 3rd International Workshop on Human-centered Computing (HCM08) - in conjunction with ACM Multimedia 2008.
• General Chair of IEEE International Conference on Automatic Face and Gesture Recognition, Amsterdam, 17-19 September 2008.
• Area Chair, IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), June 2008.
• Workshop Chair of the 2nd International Workshop on Human-centered Computing (HCM07) - in conjunction with ACM Multimedia 2007.
• Workshop Chair of the IEEE International Workshop on Human Computer Interaction (HCI07) - in conjunction with the 11th International Conference on Computer Vision (ICCV 2007)
• General Chair of the International Conference on Image and Video Retrieval (CIVR 2007), Amsterdam, 9-11 July 2007.
• Program Chair of the International Workshop on Multimedia Content Analysis and Mining, Weihai, China, June 2007.
• Chair of the IS&T/SPIE Conference on Multimedia Content Access: Algorithms and Systems, San Jose, CA, January 2007.
• General Chair of Asia-Pacific Workshop on Information Processing (VIP 2006), Beijing, China, 7-9 November 2006.
• Workshop Chair of the 1st International Workshop on Human-centered Computing (HCM06) - in conjunction with ACM Multimedia 2006.
• Workshop Chair of the International Workshop on Human Computer Interaction (HCI06) - in conjunction with the 9th European Conference on Computer Vision (ECCV 2006)
• Chair of the IS&T/SPIE Conference on Multimedia Content Analysis, Management, and Retrieval, San Jose, CA, January 2006.
• Workshop Chair of the IEEE International Workshop on Human Computer Interaction (HCI05) - in conjunction with the 10th International Conference on Computer Vision (ICCV 2005)
• Workshop Chair of the 6th ACM SIGMM International Workshop on Multimedia Information Retrieval (MIR04) - in conjunction with ACM Multimedia 2004
• Workshop Chair of the International Workshop on Human Computer Interaction (HCI04) - in conjunction with the 8th European Conference on Computer Vision (ECCV 2004)
• Workshop Chair of the 5th ACM SIGMM International Workshop on Multimedia Information Retrieval (MIR03) - in conjunction with ACM Multimedia 2003
• Technical Program Chair and Editor of the Proceedings for International Conference on Image and Video Retrieval - CIVR'2003