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Nicolas Tsapatsoulis
Contact Details Short Biography Education Awards Professional Memberships Vocational Posts Teaching Experience R&D Projects Conference Organization Reviewer Citations Publications
Contact Details
Address	Department of Computer Science University of Cyprus 75 Kallipoleos Str., P.O.Box 20537, CY-1678, Nicosia, CYPRUS
E-mail
URL	http://www.cs.ucy.ac.cy/~nicolast
Tel.	+357 99810833
Fax.	+357 2289 2701
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Short Biography
Nicolas Tsapatsoulis graduated from the Department of Electrical and Computer Engineering, the National Technical University of Athens in 1994 and received his Ph.D degree in 2000 from the same University. He has worked at the School of Electrical and Computer Eng. of the National Technical University of Athens (2000-2002) as a Research Assistant, being responsible for the project "ORESTEIA" IST-2000-26091, and at the Institute of Communications and Computer Systems, Athens, Greece, being a Class C' Researcher (2002-2003). During the academic period 2003-2004 he was with the Computer Science Dept. of the University of Cyprus being a Visiting Lecturer. The academic period 2004 - 2005 he served as a Visiting Assistant Professor at the same department. Since September 2005 he works as a Technical Manager for the CRPF project OPTOPOIHSH: Development of knowledge-based Visual Attention models for Perceptual Video Coding. He is a member of the Technical Chambers of Greece and Cyprus and a member of IEEE Signal Processing and Computer societies. He has published fourteen papers in international journals, eigth papers in books and more than 47 in proceedings of international conferences. His research has been recognised by the international research community through more than 212 citations. He served as Technical Program Co-Chair for the VLBV'01 workshop and he is a reviewer of several scientific journals (IEEE Transactions on Multimedia, IEEE Transactions on Neural Networks, IEEE Transactions on Circuits and Systems for Video Technology, IEEE Transactions on Information Technology in Biomedicine, etc). His current research interests lie in the areas of visual-attention based video coding, advanced human computer interaction, machine vision, and image and video processing.
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Education
1995-2000	Ph.D. in Electrical and Computer Engineering, National Technical University of Athens
1989-1994	Diploma in Electrical and Computer Engineering, National Technical University of Athens
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Awards
1995:	Four year full scholarship for post graduate studies, Greek State Scholarship's Foundation (IKY)
1995:	Scholarship for post graduate studies, Institute of Informatics & Telecommunications, National Centre for Scientific Research "DEMOKRITOS"
1989-1994	Ranked within top 10% students, of the Dept. of Electrical and Computer Engineering, National Technical University of Athens.
1987:	Five year full scholarship for graduate studies, Greek State Scholarship's Foundation (IKY)
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Professional Memberships
2000-	Member of Technical Chamber of Greece [GTC]
1996-	Member of Institute of Electrical and Electronics Engineers [IEEE], Communications Society, Signal Processing Society, and Computer Society
1994-	Member of Technical Chamber of Cyprus
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Vocational Posts
2006-	Collaboarating Researcher, Computational Intelligence Laboratory, Institute of Informatics and Telecommunications, National Center for Scientific Research "DEMOKRITOS", P.O. Box 60228, 15310 Aghia Paraskevi, Athens, Greece
2006-	Assistant Professor PD407/80, Dept. of Telecomunications Science and Technology, University of Peloponnese, End of Karaiskaki, 22100, Tripolis, Greece
2005-2006	Lecturer PD407/80, Dept. of Telecomunications Science and Technology, University of Peloponnese, End of Karaiskaki, 22100, Tripolis, Greece
2004-2005	Visiting Assistance Professor, Dept. of Computer Science, University of Cyprus, 75 Kallipoleos Str. P.O.Box 20537, CY-1678, Nicosia, Cyprus
2003-2004	Visiting Lecturer, Dept. of Computer Science, University of Cyprus, 75 Kallipoleos Str. P.O.Box 20537, CY-1678, Nicosia, Cyprus
2003	Class C Researcher, Institute of Communications and Computers Systems, National Technical University of Athens, 9 Iroon Polytechniou Str, 157 73 Athens, Greece.
2001-2003	Senior Researcher, Image, Video and Multimedia Systems Laboratory, National Technical University of Athens, 9 Iroon Polytechniou Str, 157 73 Athens, Greece.
1996-2000	Instructor in the Private Institute for Vocational Training "DELTA" (Athens-Greece), in the fields of Electronics and Computer Programming, 3 Rethymnou Str., 106 82 Athens, Greece.
1999-2000	Web and Unix Administrator, "EPEAEK: Databank for Special Education Schools", 11 Kolokotroni Str., 106 85, Athens, Greece.
1995-1996	Windows NT Administrator, Image, Video and Multimedia Systems Laboratory, National Technical University of Athens, 9 Iroon Polytechniou Str, 157 73 Athens, Greece.
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Teaching Experience
2006-2007	Instructor and Designer of the undergraduate course, "Adaptive Systems in Telecommunications" - BSP06, offered by the Telecommunications Science and Technology Dept. of the University of Peloponnese, Spring Semester.
2005-2007	Instructor and Designer of the undergraduate course, "Digital Signal Processors" - ESP08, offered by the Telecommunications Science and Technology Dept. of the University of Peloponnese, Spring Semester.
2005-2007	Instructor and Designer of the undergraduate course, "Multimedia Compression and Transmission" - BSP04, offered by the Telecommunications Science and Technology Dept. of the University of Peloponnese, Fall Semester.
2005-2006	Instructor and Designer of the undergraduate course, "Introduction to Control Systems" - CSP01, offered by the Telecommunications Science and Technology Dept. of the University of Peloponnese, Spring Semester.
2005-2006	Instructor and Designer of the undergraduate course, "Digital Image Processing" - TEDS150, offered by the Technology Education and Digital Systems Dept. of the University of Piraeus, Fall Semester.
2003-2005	Instructor and Designer of the graduate course, "Learning Technologies & Open and Distance Education" - CS654, offered by the Computer Science Dept. of the University of Cyprus, Spring Semester.
2004-2005	Instructor and Designer of the undergraduate course, "Multimedia Systems" - CS422, offered by the Computer Science Dept. of the University of Cyprus, Fall Semester.
2004-2005	Instructor and Designer of the undergraduate course, "Human Computer Interaction" - CS435, offered by the Computer Science Dept. of the University of Cyprus, Fall Semester.
2003-2005	Instructor and Designer of the undergraduate course, "Computer Science and Information Systems" - CS003, offered by the Computer Science Dept. of the University of Cyprus, Fall & Spring Semester.
2003-2004	Instructor and Designer of the undergraduate course, "Introduction to Computer Science" - CS001, offered by the Computer Science Dept. of the University of Cyprus, Fall & Spring Semester.
2002-2003	Organization and Instruction of the graduate course, "Digital Signal Processing", offered in the framework of the Cross-department Master Thesis Programme "Control Systems", National Technical University of Athens, Fall Semester.
1996-2000	Organization and teaching (1180 hours in total) of several courses including: "Wireless Telecommunication Networks", "Wired Telecommunication Networks", "Pulse Code Modulation", "Data Administration in Computer Networks", "Novel LAN Networks", "Telecommunication Terminal Devices", offered by the Private Institute for Vocational Training "DELTA".
1999-2000	Seminar organization and teaching, "Design and Administration of LAN using Windows NT Servers", offered by the Private Institute for Vocational Training "DELTA".
1995-1999	Organization, supervision and evaluation of laboratory studies for the courses: "Image Processing", "Neural Networks", "Human Computer Interaction", offered by the School of Electrical and Computer Engineering, National Technical University of Athens.
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Research and Development Projects
2006-2008	Investigator, FP6-027538 / STREP: BOEMIE, Bootstrapping Ontology Evolution with Multimedia Information Extraction.
2005-2007	Technical Manager, PLHRO/1104/01: OPTOPOIHSH, Development of knowledge-based Visual Attention models for Perceptual Video Coding, funded by the Cyprus Research Promotion Foundation.
2007-2009	Investigatorr, PLHRO/0506/04: POLY-BIO, Multimodal Biometric Security System, funded by the Cyprus Research Promotion Foundation.
2003-2005	Investigator, EPAN-2002/4.3.6/01: GLAYKOPIS: An Identification and Recognition System based on Biometrics for Authentication and Physical Access Control, funded by the General Secretariat for Research and Technology.
2002-2004	Investigator, Leonardo Da Vinci Programme 2001-1901/001-001: SPERO, TeleInformatics System for Continuous Collection, Processing, Diffusion of Material for Teacher Training in Special Education.
2001-2003	Principal Investigator, IST-2000-26091: ORESTEIA, Modular Hybrid Artefacts with Adaptive Functionality.
2001-2003	Investigator, IST-2000-29319: ERMIS, Emotionally Rich Man-machine Intelligent System.
1999-2001	Investigator, INCO, EUROMED: Cultural Journeys in the Information Society.
1998-2001	Investigator, Training and Mobility of Research: PHYSTA, Principled Hybrid Systems Theory and Applications.
1997-1999	Investigator, Educational Multimedia Task Force: MODULATES, Multimedia Organization for Developing the Understanding and Learning of Advanced Technology in European Schools.
1999-2001	Investigator, EPET II - EKBAN: PANORAMA, An Intelligent System for Retrieval and Mining of Audiovisual Material.
1997-1999	Investigator, PABE, 1996: Indexing, Retrieval and Management of Medical Images in Hospital Environments.
1997-1999	Investigator, EPET ΙΙ Service Providing Laboratories: Image, Video and Multimedia Systems Laboratory (IVML).
1996-1998	Investigator, R&D Cooperation between Greece and Cyprus: Design of Neural Network methodologies and models for medical image diagnosis / prognosis: Application to breast cancer development prognosis.
1995-1997	Investigator, EKBAN-504: NIKA, Generalized Medical Image Processing and Management System.
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Conference - Workshop Organization
2006	Organizer, Special Session on "Visual Attention algorithms and architectures for Perceptional Understanding and Video Coding", International Conference on Artificial Neural Networks [ICANN '06], Athens, Greece, September 10-14, 2006.
2003	Co-Organizer, Special Session on "Attention Control Architectures for Ambient Intelligence Systems",3rd Disappearing Computer Jamboree, Ivrea, Italy. November 2003
2003	Co-Organizer, Special Session on "Attention Control Architectures and Ubiquitous Computing",,Tales of the Disappearing Computer, Santorini, Greece, June 2003.
2001	Technical Program Co-Chair, International Workshop on Very Low Bitrate Video Coding [VLBV '01], Athens, Greece, October 11-12, 2001.
1997	Publicity Chair, Workshop on "Applications and Perspectives of Neural Network Technology in Greece and the Broader Balkan Area", Athens, Greece, February 21, 1997.
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Reviewer in International Journals
2005-	IEEE Transactions on Multimedia [TMM]
2005-	IEEE Transactions on Systems Man and Cybernetics
2003-	IEEE Transactions on Information Technology in BioMedicine
2002-	IEEE Transactions on Circuits and Systems for Video Technology [CSVT]
2002-	IEEE Transactions on Neural Networks
2000-	Elsevier - Neural Networks
2007-	Elsevier - Signal Processing
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Citations
At least 212	26 different publications have been cited by independent authors, Source: Scholar Google, Citation Science
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Publications
International Journals D. Vogiatzis, N. Tsapatsoulis "Active Learning for Microarray data", International Journal of Approximate Reasoning, to appear 2007. K. Rapantzikos, N. Tsapatsoulis, Y. Avrithis, S. Kollias "A Saliency-based Spatiotemporal Visual Attention Model for Video Analysis", IEE Proceedings on Vision, Image and Signal Processing, to appear 2007. K. Rapantzikos, N. Tsapatsoulis "A committee machine scheme for feature map fusion under uncertainty: the face detection case", International Journal of Intelligent Systems Technologies and Applications (IJISTA), vol. 1, no. 3/4, pp. 346-358, 2006 [ Abstract ] [ BibTex ] [ PDF  ] M. Wallace, N. Tsapatsoulis, S. Kollias "Intelligent Initialization of Resource Allocating RBF Networks", Neural Networks 18 (2), pp. 117-122, 2005 [ Abstract ] [ BibTex ] [ PDF  ] G. Tsechpenakis, K. Rapantzikos, N. Tsapatsoulis, S. Kollias "A Snake Model for Object Tracking in Natural Sequences", Elsevier, Signal Processing: Image Communication, Volume 19, Issue 3, March 2004, Pages 219-238 [ Abstract ] [ BibTex ] [ PDF  ] G. Tsechpenakis, N. Tsapatsoulis, S. Kollias "Probabilistic Boundary-Based Contour Tracking with Snakes in Natural Cluttered Video Sequences", International Journal of Image and Graphics, Vol. 4, No. 3 (2004) 469-498 [ Abstract ] [ BibTex ] G. Tsechpenakis, K. Rapantzikos, N. Tsapatsoulis, S. Kollias "Rule-driven Object Tracking in Clutter and Partial Occlusion with Model-based Snakes", EURASIP Journal on Applied Signal Processing, vol. 2004, no. 6, pp. 841-860, June 2004 [ Abstract ] [ BibTex ] [ PDF  ] A. Raouzaiou, N. Tsapatsoulis, K. Karpouzis and S. Kollias, "Parameterized facial expression synthesis based on MPEG-4 ", Eurasip Journal on Applied Signal Processing, Vol. 2002, No 10, pp. 1021-1038, 2002 [ Abstract ] [ BibTex ] [ PDF  ] R. Cowie, E. Douglas-Cowie, N. Tsapatsoulis, G. Votsis, S. Kollias, W. Fellenz and J. Taylor "Emotion Recognition in Human-Computer Interaction", IEEE Signal Processing Magazine, no. 1, January 2001, pp.32-80 [ Abstract ] [ BibTex ] [ PDF  ] N. Tsapatsoulis, Y. Avrithis and S. Kollias "Facial Image Indexing in Multimedia Databases", Pattern Analysis and Applications, Vol. 4, Issue 2/3, pp 93-107, 2001. [ Abstract ] [ BibTex ] [ PDF  ] K. Karpouzis, N. Tsapatsoulis, A. Raouzaiou, G. Mosxovitis and S. Kollias "Enhancing Nonverbal Human Computer Interaction with Expression Recognition", ACM SIGCAPH Bulletin, Issue 67, June 2000, pp. 1-9, ACM Press, NY, USA [ Abstract ] [ BibTex ] [ PDF  ] F. Schnorrenberg, N. Tsapatsoulis, C. Pattichis, C. Schizas, S. Kollias, M. Vassiliou, K. Kyriacou "Improved Detection of Breast Cancer Nuclei using Modular Neural Networks", IEEE Engineering in Medicine and Biology, vol. 19, no.1, pp. 49-63, January / February 2000 [ Abstract ] [ BibTex ] [ PDF  ] K. Karpouzis, G. Votsis, N. Tsapatsoulis and S. Kollias "Compact 3D Model Generation based on 2D Views of Human Faces: Application to Face Recognition", Machine Graphics & Vision, vol. 7, no 1/2, pp. 75–85, 1998. [ Abstract ] [ BibTex ] [ PDF  ] National Journals N. Tsapatsoulis, G. Moschovitis, A. Delopoulos, S. Kollias "Development of an Archival, Retrieval and Management System for Medical Images based on DICOM 3.0: A DICOM Server Implementation", Iatriki Epikairotita, vol. 7, issue 9, pp. 2555-2560, 2004. Book Chapters N. Tsapatsoulis, S. Kasderidis, J. G. Taylor "An Attention-based Architecture for Context Switch Detection", The Disappearing Computer, Ed. by N. Streitz, A. Kameas, Spinger-Verlag, 2007. C.S. Pattichis, F. Schnorrenberg, N. Tsapatsoulis, C.N. Schizas, M. Pattichis, K. Kyriacou "A Biopsy Analysis Support System for the Detection and Classification of Breast Cancer Nuclei", Emerging Technologies in Breast Imaging and its Applications, Ed. by J.S. Suri, R. Rangayan, S. Laxminarayan, American Scientific Publishers, 2007. K. Karpouzis, A. Drosopoulos, S. Ioannou, A. Raouzaiou, N. Tsapatsoulis, S. Kollias "Facial and Body Feature Extraction for Emotionally-Rich HCI", Mehdi Khosrow-Pour (ed.), Encyclopedia of Information Science and Technology, Idea Group Publishers, pp. 1180 - 1185, 2005 [ Abstract ] [ BibTex ] [ PDF  ] K. Karpouzis, A. Raouzaiou, A. Drosopoulos, S. Ioannou, T. Balomenos, N. Tsapatsoulis, S. Kollias "Facial expression and gesture analysis for emotionally-rich man-machine interaction", N. Sarris, M. Strintzis, (eds.), 3D Modeling and Animation: Synthesis and Analysis Techniques, pp. 175-200, Idea Group Publ., 2004 [ Abstract ] [ BibTex ] [ PDF  ] N. Tsapatsoulis, M. Wallace, S. Kasderidis "Improving the Performance of Resource Allocation Networks through Hierarchical Clustering of High - Dimensional Data", Artificial Neural Networks and Neural Information Processing, Kaynak O., Alpaydin E., Oja E., Xu L. (Eds.), Lecture Notes in Computer Science 2714, Springer, 2003. [ Abstract ] [ BibTex ] [ PDF  ] N. Tsapatsoulis, A. Raouzaiou, S. Kollias, R. Cowie, E. Douglas-Cowie "Emotion Recognition and Synthesis based on MPEG-4 FAPs", in MPEG-4 Facial Animation, Igor Pandzic, R. Forchheimer (eds), John Wiley & Sons, UK, 2002. [ Abstract ] [ BibTex ] M. Pertselakis, N. Tsapatsoulis "An Intelligent Agent based Approach for Service Discovery in Wireless Ad-hoc Networks", Advances in Communications and Software Technologies, World Scientific and Engineering Society Press, pp. 134-139, 2002. M. Leonidou, N. Tsapatsoulis, S. Kollias "Face Recognition based on Multiple Representations: Splitting the Error Space", Advances in Intelligent Systems - Concepts Tools and Applications, PART III: Image Processing and Video Based Systems, Kluwer Academic Publishers, 1999. W. Fellenz, J. Taylor, N. Tsapatsoulis, S. Kollias "Comparing Template-based, Feature-based and Supervised Classification of Facial Expressions from Static Images", Computational Intelligence and Applications, World Scientific and Engineering Society Press, 1999. [ Abstract ] [ BibTex ] Conference Proceedings D. Vogiatzis, N. Tsapatsoulis "Clustering Microarray Data with Space Filling Curves", International Workshop on Fuzzy Logic and Applications (WILF 2007), Genoa, Italy, July 2007. N. Tsapatsoulis, K. Rapantzikos "Wavelet based estimation of Saliency Maps in Visual Attention Algorithms", Lecture Notes in Computer Science, Springer Berlin / Heidelberg, Vol. 4132/2006, pp. 538-547, Book: Artificial Neural Networks - ICANN 2006. D. Vogiatzis, N. Tsapatsoulis "Missing Value Estimation for DNA Microarrays with Mutliresolution Schemes", Lecture Notes in Computer Science, Springer Berlin / Heidelberg, Vol. 4132/2006, pp. 141-150, Book: Artificial Neural Networks - ICANN 2006. N. Tsapatsoulis, K. Rapantzikos, Y. Avrithis "Priority Coding for Video-telephony Applications based on Visual Attention", 2nd International Mobile Multimedia Communications Conference (MobiMedia 2006), Alghero, Sardinia, Italy, September 2006. N. Tsapatsoulis, C. Pattichis, A. Kounoudes, C. Loizou, A. Constantinides, J. G. Taylor "Visual Attention based Region of Interest Coding for Video-telephony Applications", 5th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP'06), Patras, Greece, July 2006. M. Wallace, N. Tsapatsoulis "Combining GAs and RBF Neural Networks for Fuzzy Rule Extraction from Numerical Data", International Conference on Artificial Neural Networks, Warsaw Poland, September 2005. [ BibTex ] K. Rapantzikos, N. Tsapatsoulis "Enhancing the robustness of skin-based face detection schemes through a visual attention architecture", Proceedings of the IEEE International Conference on Image Processing (ICIP), Genova, Italy, Sep 2005 [ Abstract ] [ BibTex ] [ PDF  ] D. Vogiatzis, N. Tsapatsoulis "Active Learning with Wavelets for Microarray Data", International Workshop on Fuzzy Logic and Applications (WILF 2005), Crema, Italy, September 2005. N. Tsapatsoulis, D. Vogiatzis "InUbiHealth: Intelligent Artefacts for Ubiquitous Health Monitoring", 5th International Network Conference (INC 2005), Samos, Greece, 5-7 July 2005. S. Ioannou, A. Raouzaiou, K. Karpouzis, M. Pertselakis, N. Tsapatsoulis, S.Kollias "Adaptive Rule-Based Facial Expression Recognition", G. Vouros, T. Panayiotopoulos (Eds.), Lecture Notes in Artificial Intelligence, Vol. 3025, Springer-Verlag, pp. 466 - 475, 2004. [ Abstract ] [ BibTex ] [ PDF  ] M. Wallace, A. Raouzaiou, N. Tsapatsoulis, S. Kollias "Facial Expression Classification Based on MPEG-4 FAPs: The Use of Evidence and Prior Knowledge for Uncertainty Removal", Proceedings of the IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), Budapest, Hungary, July 2004, vol.1, pp 51-54 [ Abstract ] [ BibTex ] [ PDF  ] K. Rapantzikos, N. Tsapatsoulis, Y. Avrithis "Spatiotemporal Visual Attention Architecture for Video Analysis", Proc. of IEEE International Workshop On Multimedia Signal Processing (MMSP 2004) [ Abstract ] [ BibTex ] [ PDF  ] T. Balomenos, M. Pertselakis, E. McMahon, N. Tsapatsoulis "On the Estimation of Car Driver Profiles", Proceedings of the 1st Int. Conf. "From Scientific Computing to Computational Engineering" IC-SCCE, Athens, Greece, September 2004. M. Pertselakis, N. Tsapatsoulis, S. Kollias, A. Stafylopatis "An Adaptive Resource Allocating Neural Fuzzy Inference System", in Proceedings of the IEEE Intelligent Systems Application to Power Systems (ISAP'03), Lemnos, Greece, August 2003. [ Abstract ] [ BibTex ] A. Raouzaiou, S. Ioannou, K. Karpouzis, N. Tsapatsoulis, S. Kollias, R. Cowie "An Intelligent Scheme for Facial Expression Recognition", O. Kaynak (ed.), Artificial Neural Networks and Neural Information Processing, Lecture notes in Computer Science 2714, Springer, pp. 1109 – 1116, 2003. [ BibTex ] A. Raouzaiou, S. Ioannou, K. Karpouzis, N. Tsapatsoulis, S. Kollias, R. Cowie "An Intelligent Scheme for Facial Expression Recognition", Proceedings of the International Conference on Artificial Neural Networks (ICANN), Istanbul, Turkey, June 2003 [ Abstract ] [ BibTex ] [ PDF  ] T. Balomenos, N. Tsapatsoulis, S. Kollias, S. Kasderidis and J. G. Taylor "Attention-driven Artificial Agents", European Symposium on Intelligent Technologies, Hybrid Systems and their implementation on Smart Adaptive Systems (EUNITE'03), Oulu, Finlans, July 2003. [ Abstract ] [ BibTex ] S. Kasderidis, J. G.Taylor, N. Tsapatsoulis and D. Malchiodi "Drawing Attention to the Dangerous", in Proceedings of the International Conference on Artificial Neural Networks (ICANN'03), Istanbul, Turkey, July 2003 [ Abstract ] [ BibTex ] K. Karpouzis, A. Raouzaiou, N. Tsapatsoulis and S. Kollias "Emotion Representation for Virtual Environments", ConTEL 2003, 7th International Conference on Telecommunications, Zagreb, Croatia, June 11-13, 2003. [ Abstract ] [ BibTex ] N. Tsapatsoulis, M. Wallace, S. Kasderidis "Improving the Performance of Resource Allocation Networks through Hierarchical Clustering of High - Dimensional Data", Proceedings of the International Conference on Artificial Neural Networks (ICANN), Istanbul, Turkey, June 2003 [ Abstract ] [ BibTex ] [ PDF  ] G. Tsechpenakis, K. Rapatzikos, N. Tsapatsoulis and S. Kollias "Object Tracking in Clutter and Partial Occlusion through Rule-driven Utilization of Snakes", IEEE International Conference on Multimedia & Expo (ICME), Baltimore, USA [ Abstract ] [ BibTex ] [ PDF  ] P.Tzouveli, N. Tsapatsoulis, S. Kollias, M. Michaelidou "On the Development of User Adapted E-learning Schemes", International Conference on New Horizons in Industry and Education, Santorini,Greece, August 2003. [ Abstract ] [ BibTex ] [ PDF  ] K. Rapantzikos N. Tsapatsoulis "On the Implementation of Visual Attention Architectures", Tales of the Disappearing Computer, Santorini, June 2003 [ Abstract ] [ BibTex ] [ PDF  ] T. Balomenos, K. Rapantzikos and N. Tsapatsoulis "On the use of ECG waveforms for Health Status Estimation", Tales of the Disappearing Computer [ Abstract ] [ BibTex ] [ PDF  ] M. Pertselakis and N. Tsapatsoulis "Service Discovery in Ubiquitous Computing: A first step towards sensor-based Context Identification", Tales of the Disappearing Computer: Networking and Communication in the context of Disappearing Computer, Santorini, Greece, June 2003 [ Abstract ] [ BibTex ] A. Raouzaiou, N. Tsapatsoulis, V. Tzouvaras, G. Stamou and S. Kollias "A Hybrid Intelligence System for Facial Expression Recognition ", Eunite 2002, European Symposium on Intelligent Technologies, Hybrid Systems and their implementation on Smart Adaptive Systems, Algarve, Portugal [ Abstract ] [ BibTex ] [ PDF  ] P.Tzouveli, K. Ntalianis, N. Tsapatsoulis and S.Kollias "Automatic face region watermarking using qualified significant wavelet trees ", Proceedings of 9th International Workshop on Systems, Signal and Image Processing,Control Systems Centre, November 7-8, 2002 - Manchester, United Kingdom [ Abstract ] [ BibTex ] [ PDF  ] G. Votsis, N. Doulamis, A. Doulamis, N. Tsapatsoulis and S. Kollias "A Neural-Network-Based Approach to Adaptive Human Computer Interaction", Proceedings of ICANN 2001, Vienna, Austria, August 2001 [ Abstract ] [ BibTex ] A. Raouzaiou, N. Tsapatsoulis and S. Kollias "Parameterized Facial Expression Synthesis for Videoconferencing Applications", Proc.of Intl Workshop on Very Low Bitrate Video Coding (VLBV01), Athens, Greece, October 2001 [ Abstract ] [ BibTex ] N. Tsapatsoulis, K. Karpouzis, G. Stamou, F. Piat and S. Kollias "A Fuzzy System for Emotion Classification based on the MPEG-4 Facial Definition Parameter Set", European Signal Processing Conference (EUSIPCO'00), Tampere, Finland, September 2000 [ Abstract ] [ BibTex ] Y. Avrithis, N. Tsapatsoulis and S. Kollias "Broadcast News Parsing Using Visual Cues: A Robust Face Detection Approach", IEEE International Conference on Multimedia and Expo, New York City, NY, July 2000 [ Abstract ] [ BibTex ] [ PDF  ] Y. Avrithis, N. Tsapatsoulis and S. Kollias "Color-Based Retrieval of Facial Images", European Signal Processing Conference (EUSIPCO'00), Tampere, Finland, September 2000 [ Abstract ] [ BibTex ] [ PDF  ] F. Piat, N. Tsapatsoulis "Exploring the Time Course of Facial Expressions with a Fuzzy System", IEEE International Conference on Multimedia and Expo, New York City, NY, July 2000 [ Abstract ] [ BibTex ] N.Tsapatsoulis, Y. Avrithis and S. Kollias "Face Detection for Multimedia Applications", Proceedings of the ICIP'00, Vancouver, BC, Canada, September 2000 [ Abstract ] [ BibTex ] [ PDF  ] N. Tsapatsoulis, S. Kollias "Face Detection in Color Images and Video Sequences", Proceedings of the MELECON 2000 Mediterranean Electrotechnical Conference, Nicosia, Cyprus, May 2000 [ BibTex ] K. Karpouzis, N. Tsapatsoulis, S. Kollias "Moving to continuous facial expression space using the MPEG-4 facial definition parameter (FDP) set", SPIE Electronic Imaging 2000, January 2000, San Jose, CA, USA, pp. 443 - 450 [ Abstract ] [ BibTex ] I. Stefanakis, A. Doulamis, N. Doulamis and N. Tsapatsoulis "Adaptive Wavelet-Packet Decomposition for Rate Control of Object Oriented Coding of Video Sequences", Proceedings 1999 IEEE International Conference on Image Processing (ICIP '99), Kobe, Japan [ BibTex ] I.Stefanakis, A. Doulamis, N. Doulamis and N. Tsapatsoulis "A Multiresolution Model of Iterative Regularized Image Restoration", Proceedings 1999 IEEE International Conference on Information, Intelligence and Systems (ICIIS '99), Washington, D.C., pp. 512-518 [ BibTex ] N. Tsapatsoulis, Y. Avrithis and S. Kollias "On the use of Radon Transform for Facial Expression Recognition", Proceedings of the 5th International Conference on Information Systems Analysis and Synthesis (ISAS '99), Orlando, FL, USA [ Abstract ] [ BibTex ] [ PDF  ] M. Leonidou, N. Tsapatsoulis and S. Kollias "An Illumination Invariant Face Recognition Algorithm", Proceedings of the JCIS'98,Durham, North Carolina, USA [ BibTex ] G. Votsis, N. Tsapatsoulis, K. Karpouzis, S. Kollias "A Simplified Representation of 3D Human Faces adapted from 2D Images", Proceedings of the NMBIA'98, Glasgow, UK [ Abstract ] [ BibTex ] N. Tsapatsoulis, V. Alexopoulos, S. Kollias "A Vector Based Approximation of KLT and its Application to Face Recognition", Proceedings of the EUSIPCO'98, Rhodes, Greece [ BibTex ] N. Tsapatsoulis, N. Doulamis, A. Doulamis, S. Kollias "Face Extraction from Non-Uniform Background and Recognition in Compressed Domain", Proceedings of the ICASSP'98, Seattle WA, U.S.A. [ BibTex ] M. Leonidou, N. Tsapatsoulis, S. Kollias "Face Recognition based on Multiple Representations: Splitting the Error Space", Proceedings of the SOFTCOM'98, Athens, Greece [ BibTex ] N. Tsapatsoulis, M. Leonidou and S. Kollias "Facial Expression Recognition Using HMM with Observation Dependent Transition Matrix", Proceedings of the MMSP'98, Redondo Beach, California, USA [ BibTex ] N. Tsapatsoulis, K. Karpouzis, G. Votsis and S. Kollias "Analysis by synthesis of facial images based on frontal and profile views", Proceedings of the IWSNHC3DI'97, Rhodes, Greece [ BibTex ] N.Tsapatsoulis, F. Schnorrenberg, C. Pattichis, S. Kollias, C. Schizas "A Neural Network Assisted Algorithm for Automated Detection of Breast Cancer Nuclei", Proceedings of the DSP'97, Santorini, Greece [ BibTex ] N.Tsapatsoulis, F. Schnorrenberg, C. Pattichis, S. Kollias "An Image Analysis System for Automated Detection of Breast Cancer Nuclei", Proceedings of the ICIP'97, Santa Barbara, U.S.A [ BibTex ] N.Doulamis, N.Tsapatsoulis, A.Doulamis, A.Tsiodras, S.Kollias "Markovian models for the output of real world MPEG-1 encoders", Proceedings of the 2nd Erlangen Symposium "Advances in Digital Communications", Erlangen, Germany [ Abstract ] [ BibTex ] A. Doulamis, N.Tsapatsoulis, N. Doulamis, S.Kollias "Innovative techniques for the recognition of faces based on multiresolution analysis and morphological filtering", Proceedings of the IWISP'96, Manchester, U.K [ Abstract ] [ BibTex ] Ph.D Theses N. Tsapatsoulis "Advanced Techniques for Face Recognition and Expression Analysis", Ph.D. Thesis, School of Electrical and Computer Engineering, National Technical University of Athens [ Abstract ] [ BibTex ] [ PDF  ]

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