2023
- C. Symeonidis, I. Mademlis, I.Pitas and N.Nikolaidis, "Efficient feature extraction for Non-Maximum Suppression in visual person detection", IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2023.
- C. Symeonidis and N.Nikolaidis, "Wind Energy Prediction Guided by Multiple-Location Weather Forecasts", in International Conference on Engineering Applications of Neural Networks, pp. 445-457, June, 2023.
- E. Kakaletsis and N.Nikolaidis, "Active Face Recognition Through View Synthesis", 2023 31st European Signal Processing Conference (EUSIPCO), pp. 511-515, 2023.
- C. Georgiadis, N. Passalis and N.Nikolaidis, "ActiveFace: A Synthetic Active Perception Dataset for Face Recognition", 2023 IEEE International Workshop on Multimedia Signal Processing (MMSP 2023), 2023.
2022
- C. Symeonidis, I. Mademlis, I.Pitas and N.Nikolaidis, "AUTH-Persons: A Dataset for Detecting Humans in Crowds from Aerial Views", Proceedings of the IEEE International Conference on Image Processing (ICIP), 2022.
- N. Passalis, S.Pedrazzi, R.Babuska, W.Burgard, D.Dias, F.Ferro, M.Gabbouj, O.Green, A.Iosifidis, E.Kayacan, J.Kober, O.Michel, N.Nikolaidis, P. Nousi, R.Pieters, M. Tzelepi, A. Valada and A.Tefas, "OpenDR: An open toolkit for enabling high performance, low footprint deep learning for robotics", in 2022 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 12479-12484, Oct, 2022.
- C. Symeonidis, C. Anastasiadis and N.Nikolaidis, "A UAV Video Data Generation Framework for Improved Robustness of UAV Detection Methods", 2022 IEEE 24th International Workshop on Multimedia Signal Processing (MMSP), pp. 1-5, 2022.
- M. Tzelepi, C. Symeonidis, N.Nikolaidis and A.Tefas, "Multilayer Online Self-Acquired Knowledge Distillation", 2022 26th International Conference on Pattern Recognition (ICPR), pp. 4822-4828, 2022.
- M. Tzelepi, C. Symeonidis, N.Nikolaidis and A.Tefas, "Real-time synthetic-to-real human detection for robotics applications", 2022 13th International Conference on Information, Intelligence, Systems & Applications (IISA), pp. 1-5, 2022.
2021
- C. Symeonidis, P. Nousi, P. Tosidis, K. Tsampazis, N. Passalis, A.Tefas and N.Nikolaidis, "Efficient realistic data generation framework leveraging deep learning-based human digitization", in International Conference on Engineering Applications of Neural Networks, pp. 271-283, June, 2021.
- C. Symeonidis, E. Kakaletsis, I. Mademlis, N.Nikolaidis, A.Tefas and I.Pitas, "Vision-based UAV Safe Landing exploiting Lightweight Deep Neural Networks", Proceedings of the International Conference on Image and Graphics Processing (ICIGP), ACM, 2021.
2020
- E. Kakaletsis, I. Mademlis, N.Nikolaidis and I.Pitas, "Bayesian Fusion of Multi-view Human Crowd Detections for Autonomous UAV Fleet Safety", 28th European Signal Processing Conference (EUSIPCO 2020), 18-22 January 2021, 2020.
2019
- E. Kakaletsis, M. Tzelepi, P. I. Kaplanoglou, C. Symeonidis, N.Nikolaidis, A.Tefas and I.Pitas, "Semantic Map Annotation Through UAV Video Analysis Using Deep Learning Models in ROS", Proceedings of the International Conference on MultiMedia Modeling (MMM), 2019.
- I. Karakostas, I. Mademlis, N.Nikolaidis and I.Pitas, "Shot Type Feasibility in Autonomous UAV Cinematography", Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019.
- E. Kakaletsis and N.Nikolaidis, "Potential UAV Landing Sites Detection Through Digital Elevation Models Analysis", Proceedings of the 27th European Signal Processing Conference (EUSIPCO), Satellite Workshop: Signal Processing, Computer Vision and Deep Learning for Autonomous Systems, September 2-6, 2019.
- I. Mademlis, A. Torres-Gonzalez, J. Capitan, R. Cunha, B. Guerreiro, A. Messina, F. Negro, C. Le Barz, T. Goncalves, A.Tefas, N.Nikolaidis and I.Pitas, "A Multiple-UAV Software Architecture for Autonomous Media Production", Proceedings of the 27th European Signal Processing Conference (EUSIPCO), Satellite Workshop: Signal Processing, Computer Vision and Deep Learning for Autonomous Systems, 2019.
- E. Kakaletsis, A.Tefas, N.Nikolaidis and I.Pitas, "Incremental Label Propagation on Facial Images", Proc. IEEE Int. Workshop Machine Learning for Signal Processing (MLSP), October 13-16, 2019.
- C. Symeonidis, I. Mademlis, N.Nikolaidis and I.Pitas, "Improving Neural Non-Maximum Suppression for Object Detection by Exploiting Interest-Point Detectors", Proc. IEEE Int. Workshop Machine Learning for Signal Processing (MLSP), October 13-16, 2019.
2018
- I. Mademlis, V. Mygdalis, N.Nikolaidis and I.Pitas, "Challenges in Autonomous UAV cinematography: An Overview", Proceedings of the IEEE International Conference on Multimedia and Expo (ICME), 2018.
- I. Karakostas, I. Mademlis, N.Nikolaidis and I.Pitas, "UAV Cinematography Constraints Imposed by Visual Target Tracking", Proceedings of the IEEE International Conference on Image Processing (ICIP), October 7-10, 2018.
- E. Kakaletsis, O.Zoidi, I. Tsingalis, A.Tefas, N.Nikolaidis and I.Pitas, "Label Propagation on Facial Images Using Similarity and Dissimilarity Labelling Constraints", Proceedings of the IEEE International Conference on Image Processing (ICIP), 2018.
- I.Kapsouras and N.Nikolaidis, "A vector of locally aggregated descriptors framework for action recognition on motion capture data", 2018 26th European Signal Processing Conference (EUSIPCO), pp 1785-1789, 2018.
2017
- O. Zachariadis, V. Mygdalis, I. Mademlis, N.Nikolaidis and I.Pitas, "2D Visual Tracking for Sports UAV Cinematography Applications", Proceedings of the IEEE Global Conference on Signal and Information Processing (GLOBALSIP), 2017.
- I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Summarization of Human Activity Videos Via Low-Rank Approximation", Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017.
- I. Mademlis, V. Mygdalis, C. Raptopoulou, N.Nikolaidis, N.Heise, T.Koch, T. Wagner, A. Messina, F. Negro, S.Metta and I.Pitas, "Overview of Drone Cinematography for Sports Filming (short)", Proceedings of the European Conference on Visual Media Production (CVMP), 2017.
2016
- C. Avgerinos, N.Nikolaidis, V. Mygdalis and I.Pitas, "Feature extraction and statistical analysis of videos for cinemetric applications", IEEE Digital Media Industry and Academic Forum (DMIAF), 2016.
- E. Kakaletsis, O.Zoidi, A.Tefas, N.Nikolaidis and I.Pitas, "Fast Label Propagation on Facial Images Using a Pruned Similarity Matrix", IEEE Digital Media Industry & Academic Forum (DMIAF), 2016.
- V.Gavriilidis, A.Tefas, C.Kotropoulos and N.Nikolaidis, "Enhanced Similarities for a Music Recommender System", Proc. Digital Media Industry and Academic Forum, pp. 113-116, July 2-4, 2016.
- I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Movie Shot Selection Preserving Narrative Properties", IEEE Workshop on Multimedia Signal Processing (MMSP), 2016.
- E. Fotiadou, I.Kapsouras, N.Nikolaidis and A.Tefas, "A Bag of Words approach for recognition of Greek folk dances", Hellenic Conference on Artificial Intelligence (SETN), 2016.
- N.Tsapanos, A.Tefas and N.Nikolaidis, "Efficient MapReduce Kernel k-Means for Big Data Clustering", Hellenic Conference on Artificial Intelligence (SETN), 2016.
- E. Fotiadou, N.Nikolaidis and A.Tefas, "A comparative study of representations for folk dances recognition in video", European Signal Processing Conference (EUSIPCO), 2016.
- I. Mademlis, A.Tefas, N.Nikolaidis and I.Pitas, "Compact Video Description and Representation for Automated Summarization of Human Activities", INNS conference on Big Data, 2016.
2015
- N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Kernel Matrix Trimming for Improved Kernel k-Means Clustering", IEEE International Conference on Image Processing (ICIP), 2015.
- N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Distributed, MapReduce-based Nearest Neighbor and e-ball Kernel k-Means", IEEE Symposium Series on Computational Intelligence (SSCI), 2015.
- N.Tsapanos, A.Tefas, N.Nikolaidis, A.Iosifidis and I.Pitas, "Fast Kernel Matrix Computation for Big Data Clustering", International Conference on Computational Science (ICCS), 2015.
- F. Patrona, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Visual voice activity detection based on spatiotemporal information and bag of words", IEEE International Conference on Image Processing (ICIP), pp. 2334-2338, 2015.
- O.Zoidi, N.Nikolaidis, A.Tefas and I.Pitas, "Multi-modal label propagation based on a higher order similarity matrix", IEEE International Workshop on Machine Learning for Signal Processing (MLSP), p. 1-6, September 17-20, 2015.
- I.Kapsouras, A.Tefas, N.Nikolaidis and I.Pitas, "Multimodal Speaker Diarization Utilizing Face Clustering Information", Proc. Int. Conf. on Image and Graphics: (ICIG), pp. 547-554, August 13-16, 2015.
- I. Mademlis, N.Nikolaidis and I.Pitas, "Stereoscopic video description for key-frame extraction in movie summarization", European Signal Processing Conference (EUSIPCO), 31 August - 4 September, 2015.
- E. Kakaletsis and N.Nikolaidis, "A technique for fake 3D (2D-to-3D converted) video recognition", European Signal Processing Conference (EUSIPCO), pp. 106-109, 31 August-4 September, 2015.
- J.Blat, A.Evans, J.Agenjo, K.Hansung, E.Imre, A.Hilton, A.Tefas, N.Nikolaidis, I.Pitas, L.Polok, P.Smrz and P.Zemcik, "IMPART: Big media data processing and analysis for film production", IEEE International Conference on Multimedia Expo Workshops (ICMEW), pp. 1-5, June 29 - July 3, 2015.
2014
- N. Mpountouropoulos, A.Tefas, N.Nikolaidis and I.Pitas, "Visual Information Analysis for Big-Data Using Multi-core Technologies", First Euro-China Conference on Intelligent Data Analysis and Applications, pp. 309-316, 2014.
- N.Tsapanos, A.Tefas, N.Nikolaidis and I.Pitas, "Large graph clustering using DCT-based graph clustering", IEEE Symposium on Computational Intelligence in Big Data (CIBD), pp. 1-4, December 9-12, 2014.
- E. Fotiadou and N.Nikolaidis, "A correspondence based method for activity recognition in human skeleton motion sequences", IEEE International Conference on Image Processing (ICIP), pp. 1500-1504, October 27-30, 2014.
- K. Kelgeorgiadis and N.Nikolaidis, "Human action recognition in 3D motion sequences", European Signal Processing Conference (EUSIPCO), pp. 2205-2209, 1-5 September, 2014.
- I.Kapsouras and N.Nikolaidis, "Action Recognition in Motion Capture Data Using a Bag of Postures Approach", International Conference on Pattern Recognition (ICPR), pp. 2649-2654, 24-28 August, 2014.
- O.Zoidi, N.Nikolaidis and I.Pitas, "Label Propagation on data with multiple representations through multi-graph locality preserving projections", IEEE International Conference on Image Processing (ICIP), 2014.
- O.Zoidi, A.Tefas, N.Nikolaidis and I.Pitas, "Iterative Label Propagation on facial images", European Signal Processing Conference (EUSIPCO), 2014.
- O.Zoidi, N.Nikolaidis and I.Pitas, "Semi-supervised dimensionality reduction on data with multiple representations for label propagation on facial images", 39th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), 2014.
- K. Papachristou, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Shot Clustering into Semantic Concepts based on Visual and Disparity Information", IEEE International Conference on Image Processing (ICIP), 2014.
- K. Papachristou, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Shot Classification based on Weighted Linear Discriminant Analysis", the IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2014), 2014.
- 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", the IEEE 16th International Workshop on Multimedia Signal Processing (MMSP 2014), 2014.
- I. Mademlis, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Stereoscopic Video Description for Human Action Recognition", IEEE Symposium Series on Computational Intelligence (SSCI): Computational Intelligence for Multimedia, Signal and Vision Processing, 2014.
- 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", the EBU MDN Workshop 2014, 2014.
- N. Kourous, A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Video Characterization based on Activity Clustering", International Conference on Electrical and Computer Engineering (ICECE), 2014.
- K. Papachristou, N.Nikolaidis and I.Pitas, "A. Linnemann, M. Liu and S. Gerke,"Human-centered 2D/3D Video Content Analysis and Description", International Conference on Electrical and Computer Engineering (ICECE), 2014.
- G.Orphanidis, A.Tefas, N.Nikolaidis and I.Pitas, "Facial Image Clustering in Stereo Videos Using Local Binary Patterns and Double Spectral Analysis", IEEE Symposium Series on Computational Intelligence (SSCI), 2014.
- G.Orphanidis, N.Nikolaidis, A.Tefas and I.Pitas, "Stereo facial image clustering using double spectral analysis", International Conference on Electrical and Computer Engineering (ICECE), 2014.
- I. Tsingalis, A.Tefas, N.Nikolaidis and I.Pitas, "Shot type characterization in 2D and 3D video content", IEEE International Workshop on Multimedia Signal Processing (MMSP), 2014.
- M.Liu, I. Mademlis, P. Ndjiki-Nya, J.C Le Quintrec, N.Nikolaidis and I.Pitas, "Efficient Automatic Detection of 3D Video Artifacts", IEEE International Workshop on Multimedia Signal Processing (MMSP), 2014.
2013
- T.Theodoridis, K. Papachristou, N.Nikolaidis and I.Pitas, "Object motion description in stereoscopic videos", International Conference on 3D Imaging (IC3D), pp. 1-7, 3-5 December, 2013.
- G.Orphanidis, N.Nikolaidis and I.Pitas, "Facial image clustering in single channel and stereo video content.", Proc. Int. Workshop Biometrics and Forensics, 4, April 4-5, 2013.
- G.Orphanidis, N.Nikolaidis and I.Pitas, "Facial Image Clustering in 3D Video Using Constrained Ncut", 21st European Signal Processing Conference (EUSIPCO-2013), 5, September 9-13, 2013.
- O.Zoidi, N.Nikolaidis and I.Pitas, "Exploiting Clustering and Stereo Information in Label Propagation of Facial Images", IEEE Symposium Series on Computational Intelligence (SSCI 2013), April 16-19, 2013.
- O.Zoidi, N.Nikolaidis and I.Pitas, "Appearance Based Object Tracking in Stereo Sequences", 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), May 26-31, 2013.
- I.Kapsouras, S.Karanikolos, N.Nikolaidis and A.Tefas, "Folk dance recognition using a bag of words approach and ISA/STIP features", BCI '13 Proceedings of the 6th Balkan Conference in Informatics, pp 71-74, 2013.
- I.Kapsouras, S.Karanikolos, N.Nikolaidis and A.Tefas, "Feature Comparison and Feature Fusion for Traditional Dances Recognition", Engineering Applications of Neural Networks, Communications in Computer and Information Science, vol 383, pp172-181, 2013.
- S.Delis, N.Nikolaidis and I.Pitas, "Automatic 3D Defects Identification in Stereoscopic Videos", 20th IEEE International Conference on Image Processing (ICIP), September 15-18, 2013.
- N.Nikolaidis, I.Pitas, K. Gorgulu, M.Liu, A. Robel and E. E. Tsiropoulou, "3DTV Audiovisual Content Analysis and Description", 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, June 10-12, 2013.
- G.Chantas, N.Nikolaidis and I.Pitas, "A Bayesian Methodology for Visual Object Tracking on Stereo Sequences", 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, June 10-12, 2013.
- S.Delis, N.Nikolaidis and I.Pitas, "Automatic Detection of Depth Jump Cuts and Bent Window Effects in Stereoscopic Videos", 11th IEEE IVMSP Workshop : 3D Image/Video Technologies and Applications, June 10-12, 2013.
- G.Chantas, N.Nikolaidis and I.Pitas, "Variational Bayesian Inference for Stereo Object Tracking", 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), May 26-31, 2013.
- N. Papanikoloudis, S.Delis, N.Nikolaidis and I.Pitas, "Semantic Description in Stereo Video Content for Surveillance Applications", International Workshop on Biometrics and Forensics (IWBF 2013), April 4-5, 2013.
2012
- I. Tsingalis, N.Vretos, N.Nikolaidis and I.Pitas, "Anthropocentric Descriptors and Description Schemes for Multi-View Video Content", 16th IEEE Mediterranean Electrotechnical Conference, 25-28 March, 2012.
- N.Tsapanos, I.Pitas and N.Nikolaidis, "Graph Representations using Adjacency Matrix Transforms for Clustering", 16th IEEE Mediterranean Electrotechnical Conference, 25-28 March, 2012.
- G.Chantas, N.Nikolaidis and I.Pitas, "Variational Bayesian Inference for Forward Backward Visual Tracking in Stereo Sequences", Proc. IEEE 2012 International Conference on Image Processing, September 30 - October 3, 2012.
- N.Vretos, N.Nikolaidis and I.Pitas, "Using the MPEG-7 Audio-Visual Description Profile for 3D Video Content Description", NEM Summit, 16-18 October, 2012.
- N.Vretos, N.Nikolaidis and I.Pitas, "The Use of Audio-Visual Description Profile in 3D Video Content Description", 3DTV-Conference, October 15-17, 2012.
- I. Tsingalis, N.Vretos, N.Nikolaidis and I.Pitas, "SVM-based Shot Type Classification of Movie Content", Proc. of 9th Mediterranean Electro technical Conference, pp. 104-107, 16-18 October, 2012.
- O.Zoidi, N.Nikolaidis and I.Pitas, "Exploiting disparity information in visual object tracking", 3DTV-CON, October 15-17, 2012.
2011
- M.Holte, T.Moeslund, N.Nikolaidis and I.Pitas, "3D Human Action Recognition for Multi-View Camera Systems", Joint Conference on 3D Imaging, Modeling, Processing, Visualization, Transmission (3DIMPVT 2011), May, 2011.
- N.Tsapanos, N.Nikolaidis and I.Pitas, "Towards Automated Post-Production and Semantic Annotation of Films", International Conference on Image Information Processing, November, 2011.
- N.Vretos, N.Nikolaidis and I.Pitas, "3D Facial Expression Recognition Using Zernike Moments On Depth Images", IEEE International Conference in Image Processing (ICIP2011), September, 2011.
- A.Iosifidis, A.Tefas, N.Nikolaidis and I.Pitas, "Learning Human Identity Using View-Invariant Multi-view Movement Representation", Biometrics and ID Management workshop, Springer LNCS, March, 2011.
- 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", 36th Mutual conference on Veterinary and Human Reproductive Medicine, February, 2011.
- I.Marras, N.Nikolaidis and I.Pitas, "Frontal Facial Pose Recognition using a Discriminant Splitting Feature Extraction Procedure", 33rd International Conference on Information Technology Interfaces 2011 (ITI 2011), 2011.
- 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", International Conference on Man-Machine Interactions 2011, 2011.
- C.Cotsaces, N.Nikolaidis and I.Pitas, "Recognizing real world objects using multiple views", European Signal Processing Conference (EUSIPCO), 2011.
- I.Marras, N.Nikolaidis and I.Pitas, "Discriminant Splitting Feature Extraction with Application to View-Independent Object Recognition", European Signal Processing Conference (EUSIPCO), 2011.
- S.Nikitidis, A.Tefas, N.Nikolaidis and I.Pitas, "Facial Expression Recognition Using Clustering Discriminant Non-negative Matrix Factorization", IEEE International Conference in Image Processing (ICIP 2011), September 11-14, 2011.
2010
- I.Pitas and N.Nikolaidis, "Anthropocentric Video Analysis For Film And Games Postproduction", CompSysTech 2010, 17-18 May, 2010.
- E.Zarogianni, I.Marras and N.Nikolaidis, "Using Haptic-based Trajectory Following in 3D Space to Distinguish Between Men and Women", EuroHaptics 2010, 225-230, July, 2010.
- S.Nikitidis, N.Nikolaidis and I.Pitas, "Incremental Training of Multiclass Support Vector Machines", International Conference on Pattern Recognition (ICPR 2010), August 23-26, 2010.
- C.Cotsaces, I.Marras, N.Tsapanos, N.Nikolaidis and I.Pitas, "Human-centered Video Analysis for Multimedia Postproduction", International Symposium on Electronics and Telecommunications (ISETC) 2010, November, 2010.
- D.Zotos, N.Nikolaidis and I.Pitas, "Video Replica Detection Utilizing R-Trees And Frame-Based Voting", IEEE International Conference on Multimedia and Expo (ICME 2010), July, 2010.
- A.Iosifidis, N.Nikolaidis and I.Pitas, "Movement recognition exploiting multi-view information", IEEE International Workshop on Multimedia Signal Processing, October, 2010.
- N.Tsapanos, N.Nikolaidis and I.Pitas, "Studying the Effectiveness of Using Linear Subspace Techniques to Improve SVM Classifiers in Facial Image Classifcation", International Symposium on Electronics and Telecommunications (ISETC), November, 2010.
- G.Sfyris, N.Nikolaidis and I.Pitas, "Multi-view Object and Human Body Part Detection Utilizing 3D Scene Information", IEEE ICIP 2010, July, 2010.
- 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", 8th World Endodontic Congress, October, 2010.
2009
- N.Vretos, N.Nikolaidis and I.Pitas, "A Model Based Facial Expression Recognition Algorithm using the Eigendecomposition of the Gram Matrix", Proc. of Int. Conf. on Image Processing (ICIP 2009), 7-11 November, 2009.
- N.Gkalelis, N.Nikolaidis and I.Pitas, "View independent human movement recognition from multi-view video exploiting a circular invariant posture representation", Proc. IEEE International Conference on Multimedia and Expo (ICME 2009), June - July, 2009.
- N.Gkalelis, H.Kim, A.Hilton, N.Nikolaidis and I.Pitas, "The i3DPost multi-view and 3D human action/interaction database", 6th Conference on Visual Media Production (CVMP 2009), Nov, 2009.
- N.Nikolaidis and I.Pitas, "Still Image and Video Fingerprinting", 7th International Conference on Advances in Pattern Recognition (ICAPR 2009), invited paper – keynote speech of I. Pitas, February, 2009.
- I.Kotsia, N.Nikolaidis and I.Pitas, "Frontal Facial View Recognition in Video Sequences using DNMF and SVMs", Proc. of 2009 IEEE International Conference on Multimedia and Expo, 28 June-3 July, 2009.
- N.Vretos, N.Nikolaidis and I.Pitas, "A Perceptual Hashing Algorithm Using Latent Dirichlet Allocation", Proc. of Int. Conf. on Multimedia and Expo (ICME 2009), June 28 - July 3, 2009.
2008
- I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Texture and Shape Information Fusion for Facial Action Unit Recognition", Proc. of The First International Conference on Advances in Computer-Human Interaction (ACHI 08), 10-15 February, 2008.
- N.Barbalios, N.Nikolaidis and I.Pitas, "3D Human Face Modelling >From Uncalibrated Images Using Spline Based Deformation", 3rd International Conference on Computer Vision Theory and Applications (VISAPP 2008), January, 2008.
- 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", Proc. LREC 2008 Workshop on Multimodal Corpora, May 26-27, 2008.
2007
- Z.Cernekova, N.Nikolaidis and I.Pitas, "Single Camera Pointing Gesture Recognition Using Spatial Features and Support Vector Machines", Proc. of 15th European Signal Processing Conference (EUSIPCO-2007), September, 2007.
- I.Kotsia, N.Nikolaidis and I.Pitas, "Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant", Proc. of Int. Conf. Acoustics, Speech and Signal Processing (ICASSP 2007), Honolulu, 15-20 April, 2007.
- I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition", Proc. of IEEE Workshop on Neural Networks for Signal Processing( MLSP 2007), 27-29 August, 2007.
- M.Krinidis, N.Nikolaidis and I.Pitas, "3D Head Pose Estimation Using Support Vector Machines and Physics-Based Deformable Surfaces", Proc. of Int. Symposium Signal Processing and its Applications (ISSPA 2007), 12-15 February, 2007.
- M.Krinidis, N.Nikolaidis and I.Pitas, "Using Deformable Surface Models to Derive a DCT-Like 2D Transform", Proc. of Int. Conf. Multimedia & Expo (ICME 2007), July 2-5, 2007.
- S.Asteriadis, N.Nikolaidis, I.Pitas and M.Pardas, "Detection of facial characteristics based on edge information", International Conference on Computer Vision Theory and Applications (VISAPP 2007), 2007.
- E.Horness, N.Nikolaidis and I.Pitas, "Blind City Maps Watermarking Utilizing Road Width Information", 2007 EURASIP European Signal Processing Conference (EUSIPCO 2007), 2007.
- A. Digka, K.Lyroudia, L.Kubinova, I.Marras, N.Nikolaidis and I.Pitas, "3-D Reconstruction Of Pulpal Blood Vessels By Using Confocal Microscopy", 2nd annual meeting of IADR-Continental European and Israeli Divisions, September, 2007.
2006
- S.Asteriadis, N.Nikolaidis, A.Hajdu and I.Pitas, "An Eye Detection Algorithm Using Pixel to Edge Information", Proc. of 2nd IEEE-EURASIP Int. Symposium on Control, Communications, and Signal Processing (ISCCSP 2006), 13-15 March, 2006.
- S.Asteriadis, N.Nikolaidis, A.Hajdu and I.Pitas, "A novel eye-detection algorithm utilizing edge-related geometrical information", Proc. of European Signal Processing Conf. (EUSIPCO 2006), 4-8 September, 2006.
- I.Buciu, N.Nikolaidis and I.Pitas, "A comparative study of NMF, DNMF, and LNMF algorithms applied for face recognition", Proc. of 2nd IEEE-EURASIP Int. Symposium on Control, Communications, and Signal Processing (ISCCSP 2006), 13-15 March, 2006.
- I.Buciu, N.Nikolaidis and I.Pitas, "On the initialization of the DNMF algorithm", Proc. of 2006 IEEE Int. Symposium on Circuits and Systems, 21-24 May, 2006.
- I.Buciu, Z.Hammal, A.Caplier, N.Nikolaidis and I.Pitas, "Enhancing facial expression classification by information fusion", Proc. of European Signal Processing Conf. (EUSIPCO 2006), 4-8 September, 2006.
- Z.Cernekova, N.Nikolaidis and I.Pitas, "AIIA shot boundary detection at TRECVID 2006", Proc. of 2006 Workshop on TREC Video Retrieval Evaluation, NIST , Gaithersburg, November, 2006.
- Z.Cernekova, N.Nikolaidis and I.Pitas, "Temporal Video Segmentation by Graph Patitioning", Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech, and Signal Processing (ICASSP 2006), 14-19 May, 2006.
- C.Cotsaces, N.Nikolaidis and I.Pitas, "Video Indexing by Face Occurrence-based Signatures", Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech and Signal Processing, 14-19 May, 2006.
- I.Kotsia, N.Nikolaidis and I.Pitas, "Fusion of Geometrical and Texture information for facial expression recognition", Proc. of Int. Conf. on Image Processing (ICIP 2006), 8-11 October, 2006.
- S.Nikolopoulos, S.Zafeiriou, N.Nikolaidis and I.Pitas, "Image Replica detection using R-tress and Linear Discriminant Analysis", Proc. of the IEEE Int. Conf. on Multimedia and Expo (ICME 2006), Toronto Ontario, 9-12 July, 2006.
- S.Siatras and N.Nikolaidis, "Visual speech detection using mouth region intensities", Proc. of European Signal Processing Conf. (EUSIPCO 2006), 4-8 September, 2006.
- Y.Maret, S.Nikolopoulos, F.Dufaux, T.Ebrahimi and N.Nikolaidis, "A Novel Replica Detection System Using Binary Classifiers, R-Trees, and PCA", 2006 IEEE International Conference on Image Processing (ICIP 2006), pp. 925-928, 2006.
- N.Nikolaidis and I.Pitas, "Image and video fingerprinting for digital rights management of multimedia data", 2006 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2006), pp. 801-807, 2006 (invited paper).
- E.Loutas, N.Nikolaidis and I.Pitas, "A mutual information approach to contour based object tracking", 2006 EURASIP European Signal Processing Conference (EUSIPCO 2006), 2006.
- N.Nikolaidis and I.Pitas, "Using Spanning Trees for Reduced Complexity Image Mosaicing", 2006 EURASIP European Signal Processing Conference (EUSIPCO 2006), 2006.
- I.Marras, L.Papaleontiou, N.Nikolaidis, K.Lyroudia and I.Pitas, "Virtual Dental Patient: A System for Virtual Teeth Drilling", Proc. of 2006 IEEE International Conference on Multimedia and Expo (ICME 06), 2006.
- I.Marras, L.Papaleontiou, N.Nikolaidis, K.Lyroudia and I.Pitas, "A Virtual Reality Tooth Drilling Simulator", Proc. of Spring Conference on Computer Graphics 2006, pp. 49-52, 2006.
2005
- Z.Cernekova, C.Kotropoulos, N.Nikolaidis and I.Pitas, "Video shot segmentation using fusion of SVD and mutual information features", Proc. of IEEE Int. Symposium on Circuits and Systems (ISCAS 2005), pp. 3849-3852, 23-26 May, 2005.
- C.Cotsaces, N.Nikolaidis and I.Pitas, "The use of face indicator functions for video indexing and fingerprinting", Proc. of Int. Workshop on Content-Based Multimedia Indexing (CBMI 2005), 21-23 June, 2005.
- L.Goldmann, M.Krinidis, N.Nikolaidis, S.Asteriadis and T.Sikora, "An Integrated System for Face Detection and Tracking", ICOB2005, 27-28 October, 2005.
- M.Krinidis, G.Stamou, H.Teutsch, S.Spors, N.Nikolaidis, R.Rabenstein and I.Pitas, "An Audio-Visual Database For Evaluating Person Tracking Algorithms", Proc. of IEEE Int. Conf. Acoustics, Speech and Signal Processing, ICASSP 2005, vol. 2, pp. 237-240, 18 -23 March, 2005.
- M.Krinidis, N.Nikolaidis and I.Pitas, "Feature-based tracking using 3D physics-based deformable surfaces", Proc. of 2005 EURASIP European Signal Processing Conference (EUSIPCO 2005), 4-8 September, 2005.
- K.Kucharski, W.Skarbek, G.Stamou, N.Nikolaidis and I.Pitas, "Morphological and AdaBoost Face Detectors Comparison", Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), 27-28 October, 2005.
- Y.Maret, S.Nikolopoulos, F.Dufaux, C.Cotsaces, T.Ebrahimi and N.Nikolaidis, "Reduced Complexity Replica Detection Systems Using Binary Classifiers and R-Trees", Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), 27-28 October, 2005.
- A.Moskofidis and N.Nikolaidis, "3D Face reconstruction from uncalibrated image sets", Proc. of Third COST 275 WORKSHOP , University of Hertfordshire, 27-28 October, 2005.
- N.Nikolaidis and I.Pitas, "Computationally Efficient Image Mosaicing Using Spanning Tree Representations", Lecture Notes in Computer Science, Advances in Informatics: 10th Panhellenic Conf. on Informatics, PCI 2005, 11-13 November, 2005.
- V.Rodriguez-Doncel, N.Nikolaidis and I.Pitas, "Watermarking Polygonal Lines Using an Optimal Detector on the Fourier Descriptors Domain", Proc. of 2005 EURASIP European Signal Processing Conf. (EUSIPCO 2005), 4-8 September, 2005.
- G.Stamou, M.Krinidis, N.Nikolaidis and I.Pitas, "A monocular system for automatic face detection and tracking", Proc. of Visual Communications and Image Processing (VCIP 2005), 12-15 July, 2005.
- G.Stamou, N.Nikolaidis and I.Pitas, "Object Tracking based on Morphological Elastic Graph Matching", Proc. of 2005 IEEE Int. Conf. on Image Processing (ICIP 2005), 11-14 September, 2005.
- G.Stamou, N.Nikolaidis and I.Pitas, "Object Tracking based on Multiscale Morphological Templates", Proc. of 2005 EURASIP European Signal Processing Conf. (EUSIPCO 2005), 4-8 September, 2005.
- G.Stamou, N.Nikolaidis and I.Pitas, "Multiview Videodatasets for Evaluation and Testing of 3D Tracking and 3D Reconstruction Algorithms", Proc. of Workshop on Immersive Communication and Broadcast Systems (ICOB 2005), 27-28 October, 2005.
- A.Tefas, A.Giannoula, N.Nikolaidis and I.Pitas, "Enhanced transform-domain correlation-based audio watermarking", Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing, ICASSP 2005, 18-23 March, 2005.
2004
- E.Loutas, N.Nikolaidis and I.Pitas, "Evaluation of tracking reliability metrics based on information theory and normalized correlation", Proc. of IEEE Int. Conf. on Pattern Recognition (ICPR 2004), 23-26 August, 2004.
- G.Moschos, N.Nikolaidis and I.Pitas, "Anatomically-based 3D face and oral cavity mode for creating virtual medical patients", Proc. of IEEE Int. Conf. on Multimedia & Expo (ICME 2004), 27-30 June, 2004.
- A.Tefas and N.Nikolaidis, "Chaotic watermark sequences for correlation-based schemes", Proc. of 12th European Signal Processing Conf. EUSIPCO2004), pp. 1891-1894, 6-10 September, 2004.
2003
- A.Barmpoutis, N.Nikolaidis and I.Pitas, "Face 3D Pose Estimation using a Generic 3D Face Model and Facial Features Extraction", Proc. of 9th Panhellenic Conf. on Informatics (PCI `03), pp. 519-526, 21-23 November, 2003.
- A.Giannoula, A.Tefas, N.Nikolaidis and I.Pitas, "Improving the Detection Reliability of Correlation-based Watermarking Techniques", Proc. of IEEE Int. Conf. on Multimedia and Expo 2003(ICME2003), Baltimore, 6-9 July, 2003.
- C.Laftsidis, A.Tefas, N.Nikolaidis and I.Pitas, "Robust Multibit Audio Watermarking in the Temporal Domain", Proc. of 2003 IEEE Int. Symposium on Circuits and Systems, May 25-28, 2003.
- E.Loutas, N.Nikolaidis and I.Pitas, "A mutual information approach to articulated object tracking", Proc. of Int. Symposium on Circuits and Systems (ISCAS '03), vol. 2, 25-28 May, 2003.
- S.Zafeiriou, A.Kalivas, A.Tefas, N.Nikolaidis and I.Pitas, "Watermarking of 3D mesh models robust to basic geometric transformations", Proc. of 9th Panhellenic Conf. on Informatics (PCI `03), 21-23 November, 2003.
2002
- A.Giannoula, N.Nikolaidis and I.Pitas, "Watermarking of Sets of Polygonal Lines using Fusion Techniques", Proc. of IEEE Int. Conf. on Multimedia and Expo 2002 (ICME2002), vol. 2, pp. 549-552, 26-29 August, 2002.
- N.Nikolaidis, V.Solachidis, A.Tefas, V.Arguriou and I.Pitas, "Benchmarking of Still Image Watermarking Methods: Principles and State of the Art", Proc. of Electronic Imaging & the Visual Arts 2002 (EVA2002), 18-22 March, 2002.
- N.Nikolaidis, V.Solachidis, A.Tefas and I.Pitas, "Watermark Detection: Benchmarking Perspectives", Proc. of IEEE Int. Conf. on Multimedia and Expo 2002(ICME2002), Special Session on Benchmarking of Data Hiding Technologies, vol. 2, pp. 493-496, 26-29 August, 2002.
2001
- 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", Proc. of 5th Endodontic World Congress of I.F.E.A., 13-16 June, 2001.
- A.Tefas, G.Louizis, I.Pitas, N.Nikolaidis and K.Lyroudia, "Robust spatial 3D image watermarking", Proc. of IEEE Int. Symposium on Signal Processing and Information Technology (ISSPIT 2001), pp. 229-232, 2001.
- N.Nikolaidis and I.Pitas, "Digital Image Processing in Painting Restoration and Archiving", Proc. of IEEE Int. Conf. on Image Processing(ICIP 2001), vol. 1, pp. 586-589, 7-10 October, 2001.
- V.Solachidis, A.Tefas, N.Nikolaidis, S.Tsekeridou, A.Nikolaidis and I.Pitas, "A benchmarking protocol for watermarking methods", Proc. of 2001 IEEE Int. Conf. on Image Processing(ICIP'01), pp. 1023-1026, 7-10 October, 2001.
- A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Statistical Analysis of Markov Chaotic Sequences for Watermarking applications", CD-ROM Proc. of 2001 IEEE Int. Symposium on Circuits and Systems(ISCAS 2001), vol. 2, 6-9 May, 2001.
- A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Performance Analysis of Watermarking Schemes based on Skew Tent Chaotic Sequences", CD-ROM Proc. of NSIP'01, Baltimore, 3-6 June, 2001.
- A.Tefas, A.Nikolaidis, N.Nikolaidis, V.Solachidis, S.Tsekeridou and I.Pitas, "Markov Chaotic Sequences for Correlation based Watermarking schemes", Proc. of Int. Conf. on Nonlinear Dynamics(NLD'01), 27-30 August, 2001 (Also available online).
- S.Tsekeridou, V.Solachidis, N.Nikolaidis, A.Nikolaidis, A.Tefas and I.Pitas, "Bernoulli Shift Generated Chaotic Watermarks: Theoretic Investigation", Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP2001), vol.3, 7-11 May, 2001.
- 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", Proc. of Communications and Multimedia Security Conf. (CMS 2001), 21-22 May, 2001.
- 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", Proc. of the 12th Scandinavian Conf. on Image Analysis 2001 (SCIA2001), 11-14 June, 2001.
2000
- Γ.Παππά, Β.Δούρου, Π.Βακαλούδη, N.Nikolaidis, Κ.Λυρούδια and I.Pitas, "Τρισδιάστατη αναπαράσταση όγκου και επιφάνειας", 20ο Πανελλήνιο Oδοντιατρικό Συνέδριο, 2000.
- S.Krinidis, N.Nikolaidis and I.Pitas, "Shape Based Alignment of 3-D Volume Slices", Proc. of Int. Conf. on Electronics, Circuits and Systems (ICECS'00), vol. 1, pp. 438-441, 17-20 December, 2000.
- N.Nikolaidis, S.Tsekeridou, A.Nikolaidis, A.Tefas, V.Solachidis and I.Pitas, "Applications of chaotic signal processing techniques to multimedia watermarking", Proc. of the IEEE Workshop on Nonlinear Dynamics in Electronic Systems, pp. 1-7, 18-20 May, 2000.
- V.Solachidis, N.Nikolaidis and I.Pitas, "Watermarking Polygonal Lines Using Fourier Descriptors", Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP'2000), vol. 4, 5-9 June, 2000.
- V.Solachidis, N.Nikolaidis and I.Pitas, "Fourier descriptors watermarking of vector graphic images", CD-ROM Proc. of 2000 IEEE Int. Conf. on Image Processing (ICIP'00), vol. 3, pp. 9-12, 10-13 September, 2000.
- S.Tsekeridou, N.Nikolaidis, N.Sidiropoulos and I.Pitas, "Copyright Protection of Still Images Using Self-Similar Chaotic Watermarks", Proc. of 2000 IEEE Int. Conf. on Image Processing (ICIP'00), vol. 1, pp. 411-414, 10-13 September, 2000.
1999
- N.Nikolaidis and I.Pitas, "Digital Image Watermarking: an Overview", Proc. of Int. Conf. on Multimedia Computing and Systems (ICMCS'99), vol. 1, 7-11 June, 1999.
1998
- G.Voyatzis, N.Nikolaidis and I.Pitas, "Digital Watermarking: An Overview", Proc. of IX European Signal Processing Conf. (EUSIPCO'98), vol. 1, pp. 9-12, 8-11 September, 1998.
- G.Voyatzis, N.Nikolaidis and I.Pitas, "Copyright Protection of Multimedia Documents:From Theory to Application",1998.
1997
- I.Pitas, C.Kotropoulos, N.Nikolaidis and A.Bors, "Robust and Adaptive Techniques in Self-Organising Neural Networks", Nonlinear Analysis, Theory, Methods & Applications: Proc. of the Second World Congress of Nonlinear Analysts, pp. 4517-4528, 1997.
- L.Senhadji, N.Nikolaidis and J.Ojaniemi, "Application of two non-linear methods for the localization of artifacts on trend data", Proc. of 19th Annual Int. Conf. of the IEEE Engineering in Medicine and Biology Society, pp. 1409 -1412, 1997.
1996
- N.Nikolaidis and I.Pitas, "Copyright protection of images using robust digital signatures", Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP-96), pp. 2168-2171, May, 1996.
- N.Nikolaidis and I.Pitas, "Adaptive Multichannel L Filters Based on Reduced Ordering", Proc. of EUSIPCO-96, vol. 1, September, 1996.
1995
- N.Nikolaidis and I.Pitas, "Optimal multichannel L-filters based on reduced ordering", Proc. of the IEEE Workshop on Nonlinear Image and Signal Processing, pp. 507-510, June, 1995.
- N.Nikolaidis and I.Pitas, "Edge Detection Operators for Angular Data", Proc. of the IEEE Int. Conf. on Image Processing (ICIP 95), pp. 157-160, October, 1995.
1994
- N.Nikolaidis and I.Pitas, "Application of directional statistics in vector direction estimation", Proc. of the IEEE Int. Conf. on Acoustics, Speech and Signal Processing, vol. 5, April, 1994.
- N.Nikolaidis and I.Pitas, "Optimal L-filters for vector magnitude filtering", Proc. of European Signal Processing Conf. (Eusipco '94), pp. 955-959, 1994.
- I.Pitas, C.Kotropoulos, N.Nikolaidis, R.Yang and M.Gabbouj, "A class of order statistics Learning Vector Quantizers", Proc. of the IEEE Int. Symposium on Circuits and Systems (ISCAS 94), pp. 387-390, May, 1994.
- K.Lyroudia, N.Nikolaidis, C.Palakidis and I.Pitas, "Three-dimensional reconstuction of pulpal blood vessels and nerves", Proc. of the Int. Conf. on Confocal and Near-field Microscopy, joined with three-dimensional Image Processing in Microscopy, 25-28 April, 1994 (organized by the Society for 3-D Imaging Sciences in Microscopy).
1993
- S.Malasiotis, N.Nikolaidis, M.G.Strintzis and I.Pitas, "A smoothing algorithm with reliability constraints for image motion field coding", Proc. of the Int. Congress on Communication and Control, August, 1993.
- N.Nikolaidis, I.Pitas and T.Kilindris, "Application of directional statistics to nonlinear vector field filtering and analysis", Proc. of IEEE Winter Workshop on Nonlinear digital signal processing, pp. 1.2.4.1-1.2.4.6, 1993.
- N.Nikolaidis, I.Pitas and M.G.Strintzis, "Combined evaluation of motion and disparity vector fields for stereoscopic sequence coding", Proc. of Computer Analysis of Images and Patterns (CAIP93), pp. 387-394, 1993.
- H.Sahinoglou, S.Malasiotis, N.Nikolaidis, N.Grammalidis, M.G.Strintzis and I.Pitas, "A motion/disparity vector field smoothing algorithm", Proc. of 1993 Picture Coding Symposium, 1993.
- K.Lyroudia, C.Palakidis, I.Pitas, A.Manthos and N.Nikolaidis, "Three-dimensional reconstruction of pulpal vessels and nerve endings using transmission electron microscopy", Proc. of the 6th Biennial Congress,European Society of Endodontology, pp. 16, 11-13 November, 1993.
- K.Lyroudia, I.Pitas, N.Nikolaidis and C.Palakidis, "Three-dimensional Computerized Microscopy with Applications in the study of Dental Pulp", Proc. of ICB-NIH Workshop on Image Processing in Medicine and Biology, May, 1993.
1992
- K.Lyroudia, P.Zervas, N.Nikolaidis and I.Pitas, "Computerized three-dimensional reconstruction of dental pulp vessels and nerve bundles by using light microscope", Proc. of the 12th Hellenic Dental Conf., 1992.
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