Anastasios Kesidis received his Diploma and Ph.D. degree both from Department of Electrical and Computer Engineering, Democritus University of Thrace, Xanthi , Greece . His Ph.D. thesis is on the inverse Hough transform and its applications on digital image processing. From 2000 to 2002 he worked as a postdoctoral research fellow in the Centre for Vision, Speech and Signal Processing, School of Electronics and Physical Sciences, University of Surrey , UK . From 2002 to 2005 he worked at BSI S.A. as Project Manager and Head of R&D. Currently, he is with the Computational Intelligence Laboratory at the Institute of Informatics and Telecommunication, NCSR "Demokritos", Athens , Greece . Since 2004, he is also serving as instructor (Assistant Professor) at the Department of Surveying Engineering of the Technological Educational Institute of Athens. His main interests include pattern recognition, document analysis, medical image processing, computational tomography and image watermarking.