Prof. Dr. Roumen Kountchev, Ph.D., D. Sc. is a professor at the Faculty of Telecommunications, Dept. of Radio Communications and Video Technologies, Technical University of Sofia, Bulgaria. His areas of interest are digital signal and image processing, image compression, multimedia watermarking, video communications, pattern recognition, and neural networks. He has 360 papers published in magazines and proceedings of conferences; 22 books; 47 book chapters; 21 patents. He had been principle investigator of 38 research projects. At present, he is a member of Euro Mediterranean Academy of Arts and Sciences and President of Bulgarian Association for Pattern Recognition (member of Intern. Association for Pattern Recognition). He has been a plenary speaker at more than 30 international conferences and workshops and edited 28 books published in Springer series. Prof. Dr. Rumen Mironov received his M.Sc. and Ph.D. in Telecommunications from Technical University of Sofia and M.Sc. in Applied Mathematics and Informatics from Faculty of Applied Mathematics and Informatics. He is currently Head of the Department of Radio Communications and Video Technologies, Technical University of Sofia, Bulgaria. His current research focuses on digital signal and image processing, pattern recognition, audio and video communications, information systems, computer graphics, and programming languages. He is Member of Bulgarian Association of Pattern Recognition (IAPR) and Bulgarian Union of Automation and Automation Systems. He is Author of more than 60 scientific publications. Prof. Dr. Ivo Draganov received B.Sc., M.Sc., and Ph.D. in Telecommunications from Technical University of Sofia, Bulgaria, in 2003, 2005, and 2009. Currently, he is an associate professor in the Faculty of Telecommunications and teaches Programming in Assembler, Digital Design, Measurements in Telecommunications, Audio Systems and Speech Coding, Multimedia Systems, Digital Video Broadcasting, and other subjects. His main areas of scientific research are digital image processing, pattern recognition, multimedia systems, and neural networks. He is a member of the Editorial Board of the Computer and Communications Engineering Journal. During his research activities, he participated in more than 10 national and international projects and published more than 80 papers. He is a member of IEEE. S.R. Dr. Roumiana Kountcheva is Vice President of TK Engineering. She got her M.Sc. and Ph.D. at the Technical University of Sofia, Bulgaria, and became Senior Researcher (SR) at TIE, in 1993. She had two post-doc trainings in Japan (Fujitsu, 1977, and Fanuc, 1980). She has more than 200 publications (including 28 book chapters and 5 patents, and presented 22 plenary speeches at international conferences and workshops. She is Member of IRIEM, IDSAI, IJBST Journal Group, and Bulgarian Association for Pattern Recognition. She participated as PI, Co-PI, and Team Member of 47 scientific research projects, from which 14 international. She is Reviewer of WSEAS conferences and journals and edited several books for Springer SIST series. Her scientific areas of interest are in image processing and analysis, image watermarking and data hiding, multidimensional image representation, tensor representation, pyramidal image decompositions, image and video compression, CNC and programmable controllers, etc. Prof. Dr. Kazumi Nakamatsu received the M.s. Eng. and Dr. Sci. from Shizuoka University, 1976, and Kyushu University, Japan, 1999, respectively. He is Full Professor at School of Human Science and Environment, University of Hyogo, Japan. His research interests encompass various kinds of logic and their applications to Computer Science, especially paraconsistent annotated logic programs and their applications. He is Author of over 150 journal papers, book chapters, and conference papers and edited 14 books published by prominent publishers such as Springer-Verlag. He has chaired various international conferences, workshops, and invited sessions, and he has been a member of numerous international program committees of workshops and conferences in the area of Artificial Intelligence and Computer Science. He has contributed numerous invited lectures at international workshops, conferences, and academic organizations. He also is Recipient of some conference and paper awards. He is Member of Japan AI Society, etc.