public11.jpg (2837 bytes)Conference.jpg (12026 bytes)

    2017

    1. O. Zachariadis, V. Mygdalis, I. Mademlis, N.Nikolaidis and I.Pitas, "2D visual tracking for sports UAV cinematography applications" in IEEE Global Conference on Signal and Information Processing (GLOBALSIP), Quebec, Canada, 2017.
    2. I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Summarization of Human Activity Videos Via Low-Rank Approximation" in IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), New Orleans, USA, 2017.

    2016

    1. V.Gavriilidis, A.Tefas, C.Kotropoulos and N.Nikolaidis, "Enhanced similarities for music recommender systems", in Proc. Digital Media Industry and Academic Forum, Santorini, Greece, pp. 113-116, July 2-4, 2016.
    2. E. Fotiadou, I.Kapsouras, N.Nikolaidis and A.Tefas, "A Bag of Words approach for recognition of Greek folk dances", in Hellenic Conference on Artificial Intelligence (SETN), Thessaloniki, Greece, 2016.
    3. N.Tsapanos, A.Tefas and N.Nikolaidis, "Efficient MapReduce Kernel k-Means for Big Data Clustering", in Hellenic Conference on Artificial Intelligence (SETN), Thessaloniki, Greece, 2016.
    4. E. Fotiadou, N.Nikolaidis and A.Tefas, "A comparative study of representations for folk dances recognition in video", in European Signal Processing Conference (EUSIPCO), Budapest, Hungary, 2016.
    5. C. Avgerinos, N.Nikolaidis, V. Mygdalis and I.Pitas, "Feature extraction and statistical analysis of videos for cinemetric applications" in IEEE Digital Media Industry and Academic Forum (DMIAF), Santorini, Greece, 2016.
    6. E. Kakaletsis, O.Zoidi, A.Tefas, N.Nikolaidis and I.Pitas, "Fast Label Propagation on Facial Images Using a Pruned Similarity Matrix" in IEEE Digital Media Industry & Academic Forum (DMIAF), Santorini, Greece, 2016.
    7. I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Movie Shot Selection Preserving Narrative Properties" in IEEE Workshop on Multimedia Signal Processing (MMSP), Montreal, Canada, 2016.

    2015

    1. O.Zoidi, N.Nikolaidis, A.Tefas and I.Pitas, "Multi-modal label propagation based on a higher order similarity matrix", in IEEE International Workshop on Machine Learning for Signal Processing (MLSP), Boston, USA, p. 1-6, September 17-20, 2015.
    2. N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Kernel Matrix Trimming for Improved Kernel k-Means Clustering" in IEEE International Conference on Image Processing (ICIP), Quebec, Canada, 2015.
    3. N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Distributed, MapReduce-based Nearest Neighbor and e-ball Kernel k-Means" in IEEE Symposium Series on Computational Intelligence (SSCI), Cape Town, South Africa, 2015.
    4. N.Tsapanos, A.Tefas, N.Nikolaidis, A.Iosifidis and I.Pitas, "Fast Kernel Matrix Computation for Big Data Clustering" in International Conference on Computational Science (ICCS), Reykjavík, Iceland, 2015.
    5. J. Blat, A. Evans, J. Agenjo, K. Hansung, E. Imre, A. Hilton, A.Tefas, N.Nikolaidis, I.Pitas and L. Polok, P. Smrz, P. Zemcik, "IMPART: Big media data processing and analysis for film production" in IEEE International Conference on Multimedia Expo Workshops (ICMEW), Torino, Italy, pp. 1-5, June 29 - July 3, 2015.
    6. I.Kapsouras, A.Tefas, N.Nikolaidis and I.Pitas, "Multimodal Speaker Diarization Utilizing Face Clustering Information" in Proc. Int. Conf. on Image and Graphics: (ICIG), Tianjin, China, pp. 547-554, August 13-16, 2015.
    7. I. Mademlis, N.Nikolaidis and I.Pitas, "Stereoscopic video description for key-frame extraction in movie summarization" in European Signal Processing Conference (EUSIPCO), Nice, France, pp. 819-823, 31 August - 4 September, 2015.
    8. E. Kakaletsis and N.Nikolaidis, "A technique for fake 3D (2D-to-3D converted) video recognition" in European Signal Processing Conference (EUSIPCO), Nice, France, pp. 106-109, 31 August-4 September, 2015.
    9. F. Patrona, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Visual voice activity detection based on spatiotemporal information and bag of words" in IEEE International Conference on Image Processing (ICIP), Quebec, Canada, pp. 2334-2338, 2015.

    2014

    1. I.Kapsouras and N.Nikolaidis, "Action Recognition in Motion Capture Data Using a Bag of Postures Approach" in International Conference on Pattern Recognition (ICPR), Stockholm, Sweden, pp. 2649-2654, 24-28 August, 2014.
    2. M.Liu, I. Mademlis, P. Ndjiki-Nya, J.C Le Quintrec, N.Nikolaidis and I.Pitas, "Efficient Automatic Detection of 3D Video Artifacts" in IEEE International Workshop on Multimedia Signal Processing (MMSP), Jakarta, Indonesia, 2014.
    3. G.Orphanidis, N.Nikolaidis, A.Tefas and I.Pitas, "Stereo facial image clustering using double spectral analysis" in International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, 2014.
    4. G.Orphanidis, A.Tefas, N.Nikolaidis and I.Pitas, "Facial Image Clustering in Stereo Videos Using Local Binary Patterns and Double Spectral Analysis" in IEEE Symposium Series on Computational Intelligence (SSCI), Orlando, Florida, USA, 2014.
    5. E. Fotiadou and N.Nikolaidis, "A correspondence based method for activity recognition in human skeleton motion sequences" in IEEE International Conference on Image Processing (ICIP), Paris, France, pp. 1500-1504, October 27-30, 2014.
    6. K. Kelgeorgiadis and N.Nikolaidis, "Human action recognition in 3D motion sequences" in European Signal Processing Conference (EUSIPCO), Lisbon, Portugal, pp. 2205-2209, 1-5 September, 2014.
    7. N. Kourous, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Video Characterization based on Activity Clustering" in International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, 2014.
    8. N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Large graph clustering using DCT-based graph clustering" in IEEE Symposium on Computational Intelligence in Big Data (CIBD), Orlando, USA, pp. 1-4, December 9-12, 2014.
    9. K. Papachristou, N.Nikolaidis and I.Pitas, "M. Liuni, L. Benaroya, G. Peeters, A. Roebel, A. Linnemann, M. Liu and S. Gerke,"The Use of the MPEG-7 AVDP Profile in 3D AudioVisual Content Description" in the EBU MDN Workshop 2014, Geneva, Switzerland, 2014.
    10. K. Papachristou, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Shot Classification based on Weighted Linear Discriminant Analysis" in the IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2014), Reims, France, 2014.
    11. K. Papachristou, N.Nikolaidis and I.Pitas, "A. Linnemann, M. Liu and S. Gerke,"Human-centered 2D/3D Video Content Analysis and Description" in International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, 2014.
    12. K. Papachristou, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Shot Clustering into Semantic Concepts based on Visual and Disparity Information" in IEEE International Conference on Image Processing (ICIP), Paris, France, 2014.
    13. I.Pitas, K. Papachristou and N.Nikolaidis, "M. Liuni, L. Benaroya, G. Peeters, A. Roebel, A. Linnemann, M. Liu and S. Gerke, "2D/3D AudioVisual Content Analysis & Description" in the IEEE 16th International Workshop on Multimedia Signal Processing (MMSP 2014), Jakarta, Indonesia, 2014.
    14. I. Mademlis, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Description for Human Action Recognition" in IEEE Symposium Series on Computational Intelligence (SSCI): Computational Intelligence for Multimedia, Signal and Vision Processing, Orlando, Florida, 2014.
    15. I. Tsingalis, A.Tefas, N.Nikolaidis and I.Pitas, "Shot type characterization in 2D and 3D video content" in IEEE International Workshop on Multimedia Signal Processing (MMSP), Jakarta, Indonesia, 2014.
    16. N. Mpountouropoulos, A.Tefas, N.Nikolaidis and I.Pitas, "Visual Information Analysis for Big-Data Using Multi-core Technologies" in First Euro-China Conference on Intelligent Data Analysis and Applications, Shenzhen, China, vol. 297, pp. 309-316, 2014.
    17. O.Zoidi, A.Tefas, N.Nikolaidis and I.Pitas, "Iterative Label Propagation on facial images" in European Signal Processing Conference (EUSIPCO), Lisbon, Portugal, 2014.
    18. O.Zoidi, N.Nikolaidis and I.Pitas, "Semi-supervised dimensionality reduction on data with multiple representations for label propagation on facial images" in 39th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), Florence, Italy, 2014.
    19. O.Zoidi, N.Nikolaidis and I.Pitas, "Label Propagation on data with multiple representations through multi-graph locality preserving projections" in IEEE International Conference on Image Processing (ICIP), Paris, France, 2014.

    2013

    1. T.Theodoridis, K. Papachristou, N.Nikolaidis and I.Pitas, "Object motion description in stereoscopic videos" in International Conference on 3D Imaging (IC3D), Liege, Belgium, pp. 1-7, 3-5 December, 2013.
    2. G.Chantas, N.Nikolaidis and I.Pitas, "Variational Bayesian Inference for Stereo Object Tracking" in 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, May 26-31, 2013.
    3. S.Delis, N.Nikolaidis and I.Pitas, "Automatic 3D Defects Identification in Stereoscopic Videos" in 20th IEEE International Conference on Image Processing (ICIP), Melbourne, Australia, September 15-18, 2013.
    4. N.Nikolaidis, I.Pitas, K. Gorgulu, M.Liu, A. Robel and E. E. Tsiropoulou, "3DTV Audiovisual Content Analysis and Description" in 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, Seoul, Korea, June 10-12, 2013.
    5. G.Chantas, N.Nikolaidis and I.Pitas, "A Bayesian Methodology for Visual Object Tracking on Stereo Sequences" in 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, Seoul, Korea, June 10-12, 2013.
    6. S.Delis, N.Nikolaidis and I.Pitas, "Automatic Detection of Depth Jump Cuts and Bent Window Effects in Stereoscopic Videos" in 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, Seoul, Korea, June 10-12, 2013.
    7. G.Orphanidis, N.Nikolaidis and I.Pitas, "Facial image clustering in single channel and stereo video content." in Proc. Int. Workshop Biometrics and Forensics, Lisbon, Portugal, 4, April 4-5, 2013.
    8. N. Papanikoloudis, S.Delis, N.Nikolaidis and I.Pitas, "Semantic Description in Stereo Video Content for Surveillance Applications" in International Workshop on Biometrics and Forensics (IWBF 2013), Lisbon, Portugal, April 4-5, 2013.
    9. I.Kapsouras, S.Karanikolos, N.Nikolaidis and A.Tefas, "Feature Comparison and Feature Fusion for Traditional Dances Recognition" in Engineering Applications of Neural Networks, Communications in Computer and Information Science, vol 383, pp172-181, 2013.
    10. I.Kapsouras, S.Karanikolos, N.Nikolaidis and A.Tefas, "Folk dance recognition using a bag of words approach and ISA/STIP features" in BCI '13 Proceedings of the 6th Balkan Conference in Informatics, New York, USA, pp 71-74, 2013.
    11. G.Orphanidis, N.Nikolaidis and I.Pitas, "Facial Image Clustering in 3D Video Using Constrained Ncut" in 21st European Signal Processing Conference (EUSIPCO-2013), Marrakech, Morocco, 5, September 9-13, 2013.
    12. O.Zoidi, N.Nikolaidis and I.Pitas, "Appearance Based Object Tracking in Stereo Sequences" in 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, May 26-31, 2013.
    13. O.Zoidi, N.Nikolaidis and I.Pitas, "Exploiting Clustering and Stereo Information in Label Propagation of Facial Images" in IEEE Symposium Series on Computational Intelligence (SSCI 2013), Singapore, April 16-19, 2013.

    2012

    1. O.Zoidi, N.Nikolaidis and I.Pitas, "Exploiting disparity information in visual object tracking" in 3DTV-CON, ETH Zurich, October 15-17, 2012.
    2. G.Chantas, N.Nikolaidis and I.Pitas, "Variational Bayesian Inference for Forward Backward Visual Tracking in Stereo Sequences" in Proc. IEEE 2012 International Conference on Image Processing, Orlando, Florida, USA, September 30 - October 3, 2012.
    3. N.Tsapanos, I.Pitas and N.Nikolaidis, "Graph Representations using Adjacency Matrix Transforms for Clustering" in 16th IEEE Mediterranean Electrotechnical Conference, Hammame, Tunisia, 25-28 March, 2012.
    4. I. Tsingalis, N.Vretos, N.Nikolaidis and I.Pitas, "SVM-based Shot Type Classification of Movie Content" in Proc. of 9th Mediterranean Electro technical Conference, Istanbul, Turkey, pp. 104-107, 16-18 October, 2012.
    5. I. Tsingalis, N.Vretos, N.Nikolaidis and I.Pitas, "Anthropocentric Descriptors and Description Schemes for Multi-View Video Content" in 16th IEEE Mediterranean Electrotechnical Conference, Yasmine Hammamet, Tunisia, 25-28 March, 2012.
    6. N.Vretos, N.Nikolaidis and I.Pitas, "The Use of Audio-Visual Description Profile in 3D Video Content Description" in 3DTV-Conference, Zurich, October 15-17, 2012.
    7. N.Vretos, N.Nikolaidis and I.Pitas, "Using the MPEG-7 Audio-Visual Description Profile for 3D Video Content Description" in NEM Summit, Istanbul, Turkey, 16-18 October, 2012.

    2011

    1. C.Cotsaces, N.Nikolaidis and I.Pitas, "Recognizing real world objects using multiple views" in European Signal Processing Conference (EUSIPCO), 2011.
    2. M.Holte, T.Moeslund, N.Nikolaidis and I.Pitas, "3D Human Action Recognition for Multi-View Camera Systems" in Joint Conference on 3D Imaging, Modeling, Processing, Visualization, Transmission (3DIMPVT 2011), Hangzhou, China, May, 2011.
    3. A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Learning Human Identity Using View-Invariant Multi-view Movement Representation" in Biometrics and ID Management workshop, Springer LNCS, Brandenburg, Germany, March, 2011.
    4. E.Kiossis, C.N.Brozos, N.Nikolaidis, E.Souglis and H.Bollwein, "Changes in echostructure values of the nedometrium during pregnancy in Holstein Friesian cows" in 36th Mutual conference on Veterinary and Human Reproductive Medicine, Hannover, Germany, February, 2011.
    5. I.Marras, N.Nikolaidis and I.Pitas, "Discriminant Splitting Feature Extraction with Application to View-Independent Object Recognition" in European Signal Processing Conference (EUSIPCO), 2011.
    6. I.Marras, N.Nikolaidis and I.Pitas, "Frontal Facial Pose Recognition using a Discriminant Splitting Feature Extraction Procedure" in 33rd International Conference on Information Technology Interfaces 2011 (ITI 2011), 2011.
    7. G.Moschos, N.Nikolaidis, I.Pitas and K.L.Lyroudia, "A Virtual Anatomical 3D Head, Oral Cavity and Teeth Model for Dental and Medical Applications" in International Conference on Man-Machine Interactions 2011, 2011.
    8. S.Nikitidis, A.Tefas, N.Nikolaidis and I.Pitas, "Facial Expression Recognition Using Clustering Discriminant Non-negative Matrix Factorization" in IEEE International Conference in Image Processing (ICIP 2011), Brussels, Belgium, September 11-14, 2011.
    9. N.Tsapanos, N.Nikolaidis and I.Pitas, "Towards Automated Post-Production and Semantic Annotation of Films", in International Conference on Image Information Processing, Waknaghat, Shimla, Himachal Pradesh, INDIA, November, 2011.
    10. N.Vretos, N.Nikolaidis and I.Pitas, "3D Facial Expression Recognition Using Zernike Moments On Depth Images" in IEEE International Conference in Image Processing (ICIP2011), Brussels, Belgium, September, 2011.

    2010

    1. C.Cotsaces, I.Marras, N.Tsapanos, N.Nikolaidis and I.Pitas, "Human-centered Video Analysis for Multimedia Postproduction" in International Symposium on Electronics and Telecommunications (ISETC) 2010, Timisoara, Romania, November, 2010.
    2. A.Iosifidis, N.Nikolaidis and I.Pitas, "Movement recognition exploiting multi-view information" in IEEE International Workshop on Multimedia Signal Processing, Saint Malo, France, October, 2010.
    3. M. Kasampali, K. Papachristou, K.L.Lyroudia, N.Nikolaidis and I.Pitas, "Modification of root canal geometry after rotary instrumentation with twisted files, assessed by microcomputed tomography" in 8th World Endodontic Congress, Athens, Greece, October, 2010.
    4. S.Nikitidis, N.Nikolaidis and I.Pitas, "Incremental Training of Multiclass Support Vector Machines" in International Conference on Pattern Recognition (ICPR 2010), Istanbul, Turkey, August 23-26, 2010.
    5. I.Pitas and N.Nikolaidis, "Anthropocentric Video Analysis For Film And Games Postproduction" in CompSysTech 2010, Sofia, Bulgaria, 17-18 May, 2010.
    6. G.Sfyris, N.Nikolaidis and I.Pitas, "Multi-view Object and Human Body Part Detection Utilizing 3D Scene Information" in IEEE ICIP 2010, Singapore, July, 2010.
    7. N.Tsapanos, N.Nikolaidis and I.Pitas, "Studying the Effectiveness of Using Linear Subspace Techniques to Improve SVM Classifiers in Facial Image Classifcation" in International Symposium on Electronics and Telecommunications (ISETC), Timisoara, Romania, November, 2010.
    8. E.Zarogianni, I.Marras and N.Nikolaidis, "Using Haptic-based Trajectory Following in 3D Space to Distinguish Between Men and Women" in EuroHaptics 2010, Amsterdam, The Netherlands, 225-230, July, 2010.
    9. D.Zotos, N.Nikolaidis and I.Pitas, "Video Replica Detection Utilizing R-Trees And Frame-Based Voting" in IEEE International Conference on Multimedia and Expo (ICME 2010), Singapore, July, 2010.

    2009

    1. N.Gkalelis, N.Nikolaidis and I.Pitas, "View independent human movement recognition from multi-view video exploiting a circular invariant posture representation" in Proc. IEEE International Conference on Multimedia and Expo (ICME 2009), New York, USA, June - July, 2009.
    2. N.Gkalelis, H.Kim, A.Hilton, N.Nikolaidis and I.Pitas, "The i3DPost multi-view and 3D human action/interaction database" in 6th Conference on Visual Media Production (CVMP 2009), London, UK, Nov, 2009.
    3. I.Kotsia, N.Nikolaidis and I.Pitas, "Frontal Facial View Recognition in Video Sequences using DNMF and SVMs" in Proc. of 2009 IEEE International Conference on Multimedia and Expo, New York, New York, USA, 28 June-3 July, 2009.
    4. N.Nikolaidis and I.Pitas, "Still Image and Video Fingerprinting" in 7th International Conference on Advances in Pattern Recognition (ICAPR 2009), Kolkata, India, invited paper – keynote speech of I. Pitas, February, 2009.
    5. N.Vretos, N.Nikolaidis and I.Pitas, "A Model Based Facial Expression Recognition Algorithm using the Eigendecomposition of the Gram Matrix" in Proc. of Int. Conf. on Image Processing (ICIP 2009), Cairo, Egypt, 7-11 November, 2009.
    6. N.Vretos, N.Nikolaidis and I.Pitas, "A Perceptual Hashing Algorithm Using Latent Dirichlet Allocation" in Proc. of Int. Conf. on Multimedia and Expo (ICME 2009), New York, New York, USA, June 28 - July 3, 2009.

    2008

    1. N.Barbalios, N.Nikolaidis and I.Pitas, "3D Human Face Modelling >From Uncalibrated Images Using Spline Based Deformation" in 3rd International Conference on Computer Vision Theory and Applications (VISAPP 2008), Funchal Madeira, Portugal, January, 2008.
    2. I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Texture and Shape Information Fusion for Facial Action Unit Recognition" in Proc. of The First International Conference on Advances in Computer-Human Interaction (ACHI 08), Sainte Luce, Martinique, 10-15 February, 2008.
    3. D.Spachos, A.Zlantintsi, V.Moschou, P.Antonopoulos, K.Tzimouli, E.Benetos, M.Kotti, C.Kotropoulos, N.Nikolaidis, P.Maragos and I.Pitas, "MUSCLE movie-database: A multimodal corpus with rich annotation for dialogue and Saliency Detection" in Proc. LREC 2008 Workshop on Multimodal Corpora, Marrakech, Morocco, May 26-27, 2008.

    2007

    1. S.Asteriadis, N.Nikolaidis, I.Pitas and M.Pardas, "Detection of facial characteristics based on edge information" in International Conference on Computer Vision Theory and Applications (VISAPP 2007), Barcelona, Spain, 2007.
    2. Z.Cernekova, N.Nikolaidis and I.Pitas, "Single Camera Pointing Gesture Recognition Using Spatial Features and Support Vector Machines" in Proc. of 15th European Signal Processing Conference (EUSIPCO-2007), Poznan, Poland, September, 2007.
    3. A.Digka, K.Lyroudia, L.Kubinova, I.Marras, N.Nikolaidis and I.Pitas, "3-D Reconstruction Of Pulpal Blood Vessels By Using Confocal Microscopy" in 2nd annual meeting of IADR-Continental European and Israeli Divisions, Thessaloniki, Greece, September, 2007.
    4. E.Horness, N.Nikolaidis and I.Pitas, "Blind City Maps Watermarking Utilizing Road Width Information" in 2007 EURASIP European Signal Processing Conference (EUSIPCO 2007), Poznan, Poland, 2007.
    5. I.Kotsia, N.Nikolaidis and I.Pitas, "Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant" in Proc. of Int. Conf. Acoustics, Speech and Signal Processing (ICASSP 2007), Honolulu, Hawai, USA, 15-20 April, 2007.
    6. I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition" in Proc. of IEEE Workshop on Neural Networks for Signal Processing( MLSP 2007), Thessaloniki, Greece, 27-29 August, 2007.
    7. M.Krinidis, N.Nikolaidis and I.Pitas, "3D Head Pose Estimation Using Support Vector Machines and Physics-Based Deformable Surfaces" in Proc. of Int. Symposium Signal Processing and its Applications (ISSPA 2007), Sharaj, United Emirates, 12-15 February, 2007.
    8. M.Krinidis, N.Nikolaidis and I.Pitas, "Using Deformable Surface Models to Derive a DCT-Like 2D Transform" in Proc. of Int. Conf. Multimedia & Expo (ICME 2007), Beijing, China, July 2-5, 2007.

    2006

    1. S.Asteriadis, N.Nikolaidis, A.Hajdu and I.Pitas, "An Eye Detection Algorithm Using Pixel to Edge Information" in Proc. of 2nd IEEE-EURASIP Int. Symposium on Control, Communications, and Signal Processing (ISCCSP 2006), Marrakech, Morocco, 13-15 March, 2006.
    2. S.Asteriadis, N.Nikolaidis, A.Hajdu and I.Pitas, "A novel eye-detection algorithm utilizing edge-related geometrical information" in Proc. of European Signal Processing Conf. (EUSIPCO 2006), Florence, Italy, 4-8 September, 2006.
    3. I.Buciu, N.Nikolaidis and I.Pitas, "A comparative study of NMF, DNMF, and LNMF algorithms applied for face recognition" in Proc. of 2nd IEEE-EURASIP Int. Symposium on Control, Communications, and Signal Processing (ISCCSP 2006), Marrakech, Morocco, 13-15 March, 2006.
    4. I.Buciu, N.Nikolaidis and I.Pitas, "On the initialization of the DNMF algorithm" in Proc. of 2006 IEEE Int. Symposium on Circuits and Systems, Kos, Greece, 21-24 May, 2006.
    5. I.Buciu, Z.Hammal, A.Caplier, N.Nikolaidis and I.Pitas, "Enhancing facial expression classification by information fusion" in Proc. of European Signal Processing Conf. (EUSIPCO 2006), Florence, Italy, 4-8 September, 2006.
    6. Z.Cernekova, N.Nikolaidis and I.Pitas, "AIIA shot boundary detection at TRECVID 2006" in Proc. of 2006 Workshop on TREC Video Retrieval Evaluation, NIST , Gaithersburg, Gaithersburg, Maryland, November, 2006.
    7. Z.Cernekova, N.Nikolaidis and I.Pitas, "Temporal Video Segmentation by Graph Patitioning" in Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech, and Signal Processing (ICASSP 2006), Toulouse, France, 14-19 May, 2006.
    8. C.Cotsaces, N.Nikolaidis and I.Pitas, "Video Indexing by Face Occurrence-based Signatures" in Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech and Signal Processing, Toulouse, France, 14-19 May, 2006.
    9. I.Kotsia, N.Nikolaidis and I.Pitas, "Fusion of Geometrical and Texture information for facial expression recognition" in Proc. of Int. Conf. on Image Processing (ICIP 2006), Atlanta, GA, USA, 8-11 October, 2006.
    10. E.Loutas, N.Nikolaidis and I.Pitas, "A mutual information approach to contour based object tracking" in 2006 EURASIP European Signal Processing Conference (EUSIPCO 2006), Florence, Italy, 2006.
    11. Y.Maret, S.Nikolopoulos, F.Dufaux, T.Ebrahimi and N.Nikolaidis, "A Novel Replica Detection System Using Binary Classifiers, R-Trees, and PCA" in 2006 IEEE International Conference on Image Processing (ICIP 2006), Atlanta, GA, USA, pp. 925-928, 2006.
    12. I.Marras, L.Papaleontiou, N.Nikolaidis, K.Lyroudia and I.Pitas, "Virtual Dental Patient: A System for Virtual Teeth Drilling" in Proc. of 2006 IEEE International Conference on Multimedia and Expo (ICME 06), Canada, 2006.
    13. I.Marras, L.Papaleontiou, N.Nikolaidis, K.Lyroudia and I.Pitas, "A Virtual Reality Tooth Drilling Simulator" in Proc. of Spring Conference on Computer Graphics 2006, Slovak Republic, pp. 49-52, 2006.
    14. N.Nikolaidis and I.Pitas, "Image and video fingerprinting for digital rights management of multimedia data" in 2006 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2006), Tottori, Japan, pp. 801-807, 2006 (invited paper).
    15. N.Nikolaidis and I.Pitas, "Using Spanning Trees for Reduced Complexity Image Mosaicing" in 2006 EURASIP European Signal Processing Conference (EUSIPCO 2006), Florence, Italy, 2006.
    16. S.Nikolopoulos, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Image Replica detection using R-tress and Linear Discriminant Analysis" in Proc. of the IEEE Int. Conf. on Multimedia and Expo (ICME 2006), Toronto Ontario, Toronto, Ontario, Canada, 9-12 July, 2006.
    17. S.Siatras and N.Nikolaidis, "Visual speech detection using mouth region intensities" in Proc. of European Signal Processing Conf. (EUSIPCO 2006), Florence, Italy, 4-8 September, 2006.

    2005

    1. Z.Cernekova, C.Kotropoulos, N.Nikolaidis and I.Pitas, "Video shot segmentation using fusion of SVD and mutual information features" in Proc. of IEEE Int. Symposium on Circuits and Systems (ISCAS 2005), Kobe, Japan, pp. 3849-3852, 23-26 May, 2005.
    2. C.Cotsaces, N.Nikolaidis and I.Pitas, "The use of face indicator functions for video indexing and fingerprinting" in Proc. of Int. Workshop on Content-Based Multimedia Indexing (CBMI 2005), Riga, Latvia, 21-23 June, 2005.
    3. L.Goldmann, M.Krinidis, N.Nikolaidis, S.Asteriadis and T.Sikora, "An Integrated System for Face Detection and Tracking" in ICOB2005, Berlin, Germany, 27-28 October, 2005.
    4. M.Krinidis, G.Stamou, H.Teutsch, S.Spors, N.Nikolaidis, R.Rabenstein and I.Pitas, "An Audio-Visual Database For Evaluating Person Tracking Algorithms" in Proc. of IEEE Int. Conf. Acoustics, Speech and Signal Processing, ICASSP 2005, Philadelphia, vol. 2, pp. 237-240, 18 -23 March, 2005.
    5. M.Krinidis, N.Nikolaidis and I.Pitas, "Feature-based tracking using 3D physics-based deformable surfaces" in Proc. of 2005 EURASIP European Signal Processing Conference (EUSIPCO 2005), Antalya, Turkey, 4-8 September, 2005.
    6. K.Kucharski, W.Skarbek, G.Stamou, N.Nikolaidis and I.Pitas, "Morphological and AdaBoost Face Detectors Comparison" in Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), Berlin, Germany, 27-28 October, 2005.
    7. Y.Maret, S.Nikolopoulos, F.Dufaux, C.Cotsaces, T.Ebrahimi and N.Nikolaidis, "Reduced Complexity Replica Detection Systems Using Binary Classifiers and R-Trees" in Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), Berlin, Germany, 27-28 October, 2005.
    8. A.Moskofidis and N.Nikolaidis, "3D Face reconstruction from uncalibrated image sets" in Proc. of Third COST 275 WORKSHOP , University of Hertfordshire, Hatfield, 27-28 October, 2005.
    9. N.Nikolaidis and I.Pitas, "Computationally Efficient Image Mosaicing Using Spanning Tree Representations" in Lecture Notes in Computer Science, Advances in Informatics: 10th Panhellenic Conf. on Informatics, PCI 2005, Volos, Greece, 11-13 November, 2005.
    10. V.Rodriguez-Doncel, N.Nikolaidis and I.Pitas, "Watermarking Polygonal Lines Using an Optimal Detector on the Fourier Descriptors Domain" in Proc. of 2005 EURASIP European Signal Processing Conf. (EUSIPCO 2005), Antalya, Turkey, 4-8 September, 2005.
    11. G.Stamou, M.Krinidis, N.Nikolaidis and I.Pitas, "A monocular system for automatic face detection and tracking" in Proc. of Visual Communications and Image Processing (VCIP 2005), Beijing, China, 12-15 July, 2005.
    12. G.Stamou, N.Nikolaidis and I.Pitas, "Object Tracking based on Morphological Elastic Graph Matching" in Proc. of 2005 IEEE Int. Conf. on Image Processing (ICIP 2005), Genova, Italy, 11-14 September, 2005.
    13. G.Stamou, N.Nikolaidis and I.Pitas, "Object Tracking based on Multiscale Morphological Templates" in Proc. of 2005 EURASIP European Signal Processing Conf. (EUSIPCO 2005), Antalya, Turkey, 4-8 September, 2005.
    14. G.Stamou, N.Nikolaidis and I.Pitas, "Multiview Videodatasets for Evaluation and Testing of 3D Tracking and 3D Reconstruction Algorithms" in Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), Berlin, Germany, 27-28 October, 2005.
    15. A.Tefas, A.Giannoula, N.Nikolaidis and I.Pitas, "Enhanced transform-domain correlation-based audio watermarking" in Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing, ICASSP 2005, Philadelphia, PA, USA, 18-23 March, 2005.

    2004

    1. E.Loutas, N.Nikolaidis and I.Pitas, "Evaluation of tracking reliability metrics based on information theory and normalized correlation" in Proc. of IEEE Int. Conf. on Pattern Recognition (ICPR 2004), Cambridge, United Kingdom, 23-26 August, 2004.
    2. G.Moschos, N.Nikolaidis and I.Pitas, "Anatomically-based 3D face and oral cavity mode for creating virtual medical patients" in Proc. of IEEE Int. Conf. on Multimedia & Expo (ICME 2004), Taipei, Taiwan, 27-30 June, 2004.
    3. A.Tefas and N.Nikolaidis, "Chaotic watermark sequences for correlation-based schemes" in Proc. of 12th European Signal Processing Conf. EUSIPCO2004), Vienna, Austria, pp. 1891-1894, 6-10 September, 2004.

    2003

    1. A.Barmpoutis, N.Nikolaidis and I.Pitas, "Face 3D Pose Estimation using a Generic 3D Face Model and Facial Features Extraction" in Proc. of 9th Panhellenic Conf. on Informatics (PCI `03), Thessaloniki, Greece, pp. 519-526, 21-23 November, 2003.
    2. A.Giannoula, A.Tefas, N.Nikolaidis and I.Pitas, "Improving the Detection Reliability of Correlation-based Watermarking Techniques" in Proc. of IEEE Int. Conf. on Multimedia and Expo 2003(ICME2003), Baltimore, Maryland, USA, 6-9 July, 2003.
    3. C.Laftsidis, A.Tefas, N.Nikolaidis and I.Pitas, "Robust Multibit Audio Watermarking in the Temporal Domain" in Proc. of 2003 IEEE Int. Symposium on Circuits and Systems, Bangkok, Thailand, May 25-28, 2003.
    4. E.Loutas, N.Nikolaidis and I.Pitas, "A mutual information approach to articulated object tracking" in Proc. of Int. Symposium on Circuits and Systems (ISCAS '03), pp. 672-675, vol. 2, 25-28 May, 2003.
    5. S.Zafeiriou, A.Kalivas, A.Tefas, N.Nikolaidis and I.Pitas, "Watermarking of 3D mesh models robust to basic geometric transformations" in Proc. of 9th Panhellenic Conf. on Informatics (PCI `03), Thessaloniki, Greece, 21-23 November, 2003.

    2002

    1. A.Giannoula, N.Nikolaidis and I.Pitas, "Watermarking of Sets of Polygonal Lines using Fusion Techniques" in Proc. of IEEE Int. Conf. on Multimedia and Expo 2002 (ICME2002), Laussane, Switzerland, vol. 2, pp. 549-552, 26-29 August, 2002.
    2. N.Nikolaidis, V.Solachidis, A.Tefas, V.Arguriou and I.Pitas, "Benchmarking of Still Image Watermarking Methods: Principles and State of the Art" in Proc. of Electronic Imaging & the Visual Arts 2002 (EVA2002), Florence, Italy, 18-22 March, 2002.
    3. N.Nikolaidis, V.Solachidis, A.Tefas and I.Pitas, "Watermark Detection: Benchmarking Perspectives" in Proc. of IEEE Int. Conf. on Multimedia and Expo 2002(ICME2002), Special Session on Benchmarking of Data Hiding Technologies, Lausanne, Switzerland, vol. 2, pp. 493-496, 26-29 August, 2002.

    2001

    1. K.Lyroudia, P.Bakaloudi, G.Mikrogeorgis, E.Kechagias, N.Nikolaidis and I.Pitas, "Virtual endodontics: three-dimensional teeth volume representations and their pulp cavity access" in Proc. of 5th Endodontic World Congress of I.F.E.A., Madrid, 13-16 June, 2001.
    2. N.Nikolaidis and I.Pitas, "Digital Image Processing in Painting Restoration and Archiving" in Proc. of IEEE Int. Conf. on Image Processing(ICIP 2001), Thessaloniki, Greece, vol. 1, pp. 586-589, 7-10 October, 2001.
    3. V.Solachidis, A.Tefas, N.Nikolaidis, S.Tsekeridou, A.Nikolaidis and I.Pitas, "A benchmarking protocol for watermarking methods" in Proc. of 2001 IEEE Int. Conf. on Image Processing(ICIP'01), Thessaloniki, Greece, pp. 1023-1026, 7-10 October, 2001.
    4. A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Statistical Analysis of Markov Chaotic Sequences for Watermarking applications" in CD-ROM Proc. of 2001 IEEE Int. Symposium on Circuits and Systems(ISCAS 2001), Sydney, Australia, vol. 2, 6-9 May, 2001.
    5. A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Performance Analysis of Watermarking Schemes based on Skew Tent Chaotic Sequences" in CD-ROM Proc. of NSIP'01, Baltimore, Maryland, USA, 3-6 June, 2001.
    6. A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Markov Chaotic Sequences for Correlation based Watermarking schemes" in Proc. of Int. Conf. on Nonlinear Dynamics(NLD'01), Thessaloniki, Greece, 27-30 August, 2001 (Also available online).
    7. A.Tefas, G.Louizis, I.Pitas, N.Nikolaidis and K.Lyroudia, "Robust spatial 3D image watermarking" in Proc. of IEEE Int. Symposium on Signal Processing and Information Technology (ISSPIT 2001), pp. 229-232, 2001.
    8. S.Tsekeridou, V.Solachidis, N.Nikolaidis, A.Nikolaidis, A.Tefas and I.Pitas, "Bernoulli Shift Generated Chaotic Watermarks: Theoretic Investigation" in Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP2001), Salt Lake City, Utah, USA, vol.3, 7-11 May, 2001.
    9. S.Tsekeridou, V.Solachidis, N.Nikolaidis, A.Nikolaidis, A.Tefas and I.Pitas, "Theoretic Performance Analysis of a Watermarking System based on Bernoulli Chaotic Sequences" in Proc. of Communications and Multimedia Security Conf. (CMS 2001), Darmstadt, Germany, 21-22 May, 2001.
    10. S.Tsekeridou, V.Solachidis, N.Nikolaidis, A.Nikolaidis, A.Tefas and I.Pitas, "Theoretic Investigation of the Use of Watermark Signals derived from Bernoulli Chaotic Sequences" in Proc. of the 12th Scandinavian Conf. on Image Analysis 2001 (SCIA2001), Bergen, Norway, 11-14 June, 2001.

    2000

    1. S.Krinidis, N.Nikolaidis and I.Pitas, "Shape Based Alignment of 3-D Volume Slices" in Proc. of Int. Conf. on Electronics, Circuits and Systems (ICECS'00), Kaslik, Lebanon, vol. 1, pp. 438-441, 17-20 December, 2000.
    2. N.Nikolaidis, S.Tsekeridou, A.Nikolaidis, A.Tefas, V.Solachidis and I.Pitas, "Applications of chaotic signal processing techniques to multimedia watermarking" in Proc. of the IEEE Workshop on Nonlinear Dynamics in Electronic Systems, Catania Italy, pp. 1-7, 18-20 May, 2000.
    3. V.Solachidis, N.Nikolaidis and I.Pitas, "Watermarking Polygonal Lines Using Fourier Descriptors" in Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP'2000), Istanbul, Turkey, vol. 4, 5-9 June, 2000.
    4. V.Solachidis, N.Nikolaidis and I.Pitas, "Fourier descriptors watermarking of vector graphic images" in CD-ROM Proc. of 2000 IEEE Int. Conf. on Image Processing (ICIP'00), Vancouver, Canada, vol. 3, pp. 9-12, 10-13 September, 2000.
    5. S.Tsekeridou, N.Nikolaidis, N.Sidiropoulos and I.Pitas, "Copyright Protection of Still Images Using Self-Similar Chaotic Watermarks" in Proc. of 2000 IEEE Int. Conf. on Image Processing (ICIP'00), Vancouver, Canada, vol. 1, pp. 411-414, 10-13 September, 2000.

    1999

    1. N.Nikolaidis and I.Pitas, "Digital Image Watermarking: an Overview" in Proc. of Int. Conf. on Multimedia Computing and Systems (ICMCS'99), Florence, Italy, vol. 1, 7-11 June, 1999.

    1998

    1. G.Voyatzis, N.Nikolaidis and I.Pitas, "Digital Watermarking: An Overview" in Proc. of IX European Signal Processing Conf. (EUSIPCO'98), Rhodes, Greece, vol. 1, pp. 9-12, 8-11 September, 1998.
    2. G.Voyatzis, N.Nikolaidis and I.Pitas, "Copyright Protection of Multimedia Documents:From Theory to Application" in , 1998.

    1997

    1. I.Pitas, C.Kotropoulos, N.Nikolaidis and A.Bors, "Robust and Adaptive Techniques in Self-Organising Neural Networks" in Nonlinear Analysis, Theory, Methods & Applications: Proc. of the Second World Congress of Nonlinear Analysts, pp. 4517-4528, 1997.
    2. L.Senhadji, N.Nikolaidis and J.Ojaniemi, "Application of two non-linear methods for the localization of artifacts on trend data" in Proc. of 19th Annual Int. Conf. of the IEEE Engineering in Medicine and Biology Society, pp. 1409 -1412, 1997.

    1996

    1. N.Nikolaidis and I.Pitas, "Copyright protection of images using robust digital signatures" in Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP-96), pp. 2168-2171, May, 1996.
    2. N.Nikolaidis and I.Pitas, "Adaptive Multichannel L Filters Based on Reduced Ordering" in Proc. of EUSIPCO-96, Trieste, Italy, vol. 1, September, 1996.

    1995

    1. N.Nikolaidis and I.Pitas, "Optimal multichannel L-filters based on reduced ordering" in Proc. of the IEEE Workshop on Nonlinear Image and Signal Processing, Neos Marmaras, Greece, pp. 507-510, June, 1995.
    2. N.Nikolaidis and I.Pitas, "Edge Detection Operators for Angular Data" in Proc. of the IEEE Int. Conf. on Image Processing (ICIP 95), pp. 157-160, October, 1995.

    1994

    1. K.Lyroudia, N.Nikolaidis, C.Palakidis and I.Pitas, "Three-dimensional reconstuction of pulpal blood vessels and nerves" in Proc. of the Int. Conf. on Confocal and Near-field Microscopy, joined with three-dimensional Image Processing in Microscopy, Munich, German, 25-28 April, 1994 (organized by the Society for 3-D Imaging Sciences in Microscopy).
    2. N.Nikolaidis and I.Pitas, "Application of directional statistics in vector direction estimation" in Proc. of the IEEE Int. Conf. on Acoustics, Speech and Signal Processing, Adelaide, Australia, vol. 5, April, 1994.
    3. N.Nikolaidis and I.Pitas, "Optimal L-filters for vector magnitude filtering" in Proc. of European Signal Processing Conf. (Eusipco '94), pp. 955-959, 1994.
    4. I.Pitas, C.Kotropoulos, N.Nikolaidis, R.Yang and M.Gabbouj, "A class of order statistics Learning Vector Quantizers" in Proc. of the IEEE Int. Symposium on Circuits and Systems (ISCAS 94), London, U.K., pp. 387-390, May, 1994.

    1993

    1. K.Lyroudia, I.Pitas, N.Nikolaidis and C.Palakidis, "Three-dimensional Computerized Microscopy with Applications in the study of Dental Pulp" in Proc. of ICB-NIH Workshop on Image Processing in Medicine and Biology, Warsaw, Poland, May, 1993.
    2. K.Lyroudia, C.Palakidis, I.Pitas, A.Manthos and N.Nikolaidis, "Three-dimensional reconstruction of pulpal vessels and nerve endings using transmission electron microscopy" in Proc. of the 6th Biennial Congress,European Society of Endodontology, London, pp. 16, 11-13 November, 1993.
    3. S.Malasiotis, N.Nikolaidis, M.G.Strintzis and I.Pitas, "A smoothing algorithm with reliability constraints for image motion field coding" in Proc. of the Int. Congress on Communication and Control, Rhodes, Greece, August, 1993.
    4. N.Nikolaidis, I.Pitas and T.Kilindris, "Application of directional statistics to nonlinear vector field filtering and analysis" in Proc. of IEEE Winter Workshop on Nonlinear digital signal processing, Finland, pp. 1.2.4.1-1.2.4.6, 1993.
    5. N.Nikolaidis, I.Pitas and M.G.Strintzis, "Combined evaluation of motion and disparity vector fields for stereoscopic sequence coding" in Proc. of Computer Analysis of Images and Patterns (CAIP93), Budapest, pp. 387-394, 1993.
    6. H.Sahinoglou, S.Malasiotis, N.Nikolaidis, N.Grammalidis, M.G.Strintzis and I.Pitas, "A motion/disparity vector field smoothing algorithm" in Proc. of 1993 Picture Coding Symposium, Lausanne, 1993.

    1992

    1. K.Lyroudia, P.Zervas, N.Nikolaidis and I.Pitas, "Computerized three-dimensional reconstruction of dental pulp vessels and nerve bundles by using light microscope" in Proc. of the 12th Hellenic Dental Conf., Greece, 1992.

    1. I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Compact Video Description and Representation for Automated Summarization of Human Activities", in INNS conference on Big Data, Thessaloniki, Greece.

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