Publications

2026

  • Journal I. Papadeas, L. Tsochatzidis, I. Pratikakis "Dual-task learning for Real-time Semantic Segmentation in Autonomous Driving", IEEE Transactions on Intelligent Vehicles, Vol. 11, Issue 1,
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2025

  • Journal P. Moraiti, L. Tsochatzidis, I. Papadeas, I. Pratikakis "Continual Test-Time Domain Adaptation for Object Detection via Contrastive Mean Teacher and Stochastic Restoration", The European Journal on Artificial Intelligence, Vol. 39, Issue 2,
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  • Conference D. Antonarakos, G. Zamanakos, I. Papadeas, I. Pratikakis "Coupling Self-Distillation with Test Time Augmentation for effective LiDAR-Based 3D Semantic Segmentation", Eurographics Symposium on 3D Object Retrieval (3DOR 2025), September 4-5, 2025, London, UK,
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2024

  • Journal G. Zamanakos, L. Tsochatzidis, A. Amanatiadis, I. Pratikakis "Feature Aware Re-weighting (FAR) in Bird's Eye View for LiDAR-based 3D object detection in autonomous driving applications", Robotics and Autonomous Systems, Special Issue on Autonomous Driving and Driver Assistance Systems - Modern Approaches (4th edition), Vol. 175,
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  • Journal N. Detsikas, N. Mitianoudis, I. Pratikakis "MResTNet: A Multi-Resolution Transformer Framework with CNN Extensions for Semantic Segmentation", Journal of Imaging, Vol. 10, Issue 6, (125)
  • Conference P. Moraiti, L. Tsochatzidis, I. Papadeas, I. Pratikakis "Mean Teacher with Stochastic Restoration and Contrastive Learning for Domain Adaptive Object Detection", Proceedings of the 13th Hellenic Conference on Artificial Intelligence (SETN 2024), September 11-13, 2024, Athens, Greece,

2023

  • Journal A. Chalvatzaras, I. Pratikakis, A. Amanatiadis "A survey on map-based localization techniques for autonomous vehicles", IEEE Transactions on Intelligent Vehicles, Vol. 8, Issue 2, (1574-1596)
  • Journal Z. Tsakiris, L. Tsochatzidis, I. Pratikakis "Improving skeleton-based action recognition using part-aware graphs in a multi-stream fusion context", IEEE Access, Vol. 11, (117308-117320)
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  • Journal Y. Gao, H. Yuan, T. Ku, R. C. Veltkamp, G. Zamanakos, L. Tsochatzidis, A. Amanatiadis, I. Pratikakis, A. Panou, I. Romanelis, V. Fotis, G. Arvanitis, K. Moustakas "SHREC 2023: Point Cloud Change Detection for City Scenes", Computers and Graphics, Vol. 115, (35-42)
  • Conference M. Siopi, D. Ellinoudis, I. Pratikakis,, A. Amanatiadis "A study on high definition maps' standards and specifications for autonomous vehicles", 2023 IEEE International Conference on Omni-layer Intelligent Systems (COINS), (1--7)
  • Conference Z. Tsakiris, L. Tsochatzidis, I. Pratikakis "Action recognition via graph convolutional networks for the assisted living of the elderly", 18th IEEE International Workshop on Cellular Nanoscale Networks and their Applications (CNNA 2023), September 28-30, 2023, Xanthi, Greece,
  • Conference E. Karypidis, G. Zamanakos, L. Tsochatzidis,, I. Pratikakis "Point Contrastive learning for LiDAR-based 3D object detection in autonomous driving", 2023 24th International Conference on Digital Signal Processing (DSP), (1--5)

2022

  • Journal M. Vitek, A. Das, D. R. Lucio, L. A. Zanlorensi Jr., D. Menotti, J. Nourmohammadi Khiarak, M. Akbari Shahpar, M. Asgari-Chenaghlu, F. Jaryani, J. E. Tapia, A. Valenzuela, C. Wang, Y. Wang, Z. He, Z. Sun, F. Boutros, N. Damer, J. H. Grebe, A. Kuijper, K. Raja, G. Gupta, G. Zampoukis, L. Tsochatzidis, I. Pratikakis, S. V. Aruna Kumar, B. S. Harish, U. Pal, P. Peer, V. Štruc "Exploring Bias in Sclera Segmentation Models: A Group Evaluation Approach", IEEE Transactions on Information Forensics and Security, Vol. 18, (190-205)
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  • Journal Vanian, Vazgen, Zamanakos, Georgios, Pratikakis, Ioannis "Improving performance of deep learning models for 3D point cloud semantic segmentation via attention mechanisms", Computers & Graphics, Vol. 106, (277--287)
  • Conference G. Zamanakos, L. Tsochatzidis, A. Amanatiadis,, I. Pratikakis "A cooperative LiDAR-camera scheme for extrinsic calibration", 2022 IEEE 14th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP), (1--5)

2021

  • Journal Zamanakos, Georgios, Tsochatzidis, Lazaros, Amanatiadis, Angelos, Pratikakis, Ioannis "A comprehensive survey of LIDAR-based 3D object detection methods with deep learning for autonomous driving", Computers & Graphics, Vol. 99, (153--181)
  • Journal Tsochatzidis, Lazaros, Symeonidis, Symeon, Papazoglou, Alexandros, Pratikakis, Ioannis "HTR for greek historical handwritten documents", Journal of imaging, Vol. 7, Issue 12, (260)
  • Journal Tsochatzidis, Lazaros, Symeonidis, Symeon, Papazoglou, Alexandros, Pratikakis, Ioannis "HTR for Greek Historical Handwritten Documents", Journal of Imaging, Vol. 7, Issue 12, (260)
  • Journal Tsochatzidis, Lazaros, Koutla, Panagiota, Costaridou, Lena, Pratikakis, Ioannis "Integrating segmentation information into CNN for breast cancer diagnosis of mammographic masses", Computer Methods and Programs in Biomedicine, Vol. 200, (105913)
  • Journal Papadeas, Ilias, Tsochatzidis, Lazaros, Amanatiadis, Angelos, Pratikakis, Ioannis "Real-Time Semantic Image Segmentation with Deep Learning for Autonomous Driving: A Survey", Applied Sciences, Vol. 11, Issue 19, (8802)
  • Journal Zagoris, Konstantinos, Amanatiadis, Angelos, Pratikakis, Ioannis "Word Spotting as a Service: An Unsupervised and Segmentation-Free Framework for Handwritten Documents", Journal of Imaging, Vol. 7, Issue 12, (278)
  • Conference K. Markou, L. Tsochatzidis, K. Zagoris, A. Papazoglou, X. Karagiannis, S. Symeonidis, I. Pratikakis "A convolutional recurrent neural network for the handwritten text recognition of historical Greek manuscripts", Pattern Recognition. ICPR International Workshops and Challenges: Virtual Event, January 10-15, 2021, Proceedings, Part VII, (249--262)

2020

  • Conference Matej Vitek, ABHIJIT DAS, Yann Pourcenoux, Alexandre Missler, Calvin Paumier, Sumanta Das, Ishita De Ghosh, Diego R. Lucio, Luiz Zanlorensi, David Menotti, Fadi Boutros, Naser Damer, Jonas Henry Grebe, Arjan Kuijper, Junxing Hu, yong he, Caiyong Wang, Hongda Liu, Yunlong Wang, Zhenan Sun, Daile Osorio, Christian Rathgeb, Christoph Busch, Juan Tapia Farias, Andres Valenzuela, Georgios Zampoukis, Lazaros Tsochatzidis, Ioannis Pratikakis, Sabari Nathan, Suganya R, Vineet Mehta, Abhinav Dhall, Kiran Raja, Gourav Gupta, Jalil Nourmohammadi Khiarak, Mohsen Akbari-Shahper, Farhang Jaryani, Meysam Asgari Chenaghlu, Ritesh Vyas, Sristi Dakshit, Sagnik Dakshit, Peter Peer, Umapada Pal, Vitomir Struc "Sclera Segmentation Benchmarking Competition in the Mobile Environment", 2020 IEEE International Joint Conference on Biometrics (IJCB), (1--10)

2019

  • Journal Tsochatzidis, Lazaros, Costaridou, Lena, Pratikakis, Ioannis "Deep learning for breast cancer diagnosis from mammograms—a comparative study", Journal of Imaging, Vol. 5, Issue 3, (37)
  • Journal Veinidis, Christos, Danelakis, Antonios, Pratikakis, Ioannis, Theoharis, Theoharis "Effective descriptors for human action retrieval from 3D mesh sequences", International Journal of Image and Graphics, Vol. 19, Issue 03, (1950018)
  • Journal Mühlberger, G, Seaward, L, Terras, M, Ares Oliveira, S, Bosch, V, Bryan, M, Colutto, S, Déjean, H, Diem, M, Fiel, S, Gatos, B, Grüning, T, Greinoecker, A, Hackl, G, Haukkovaara, V, Heyer, G, Hirvonen, L, Hodel, T, Jokinen, M, Kahle, P, Kallio, M, Kaplan, F, Florian, K, Labahn, R, Lang, EM, Laube, S, Leifert, G, Louloudis, G, McNicholl, R, Meunier, JL, Michael, J, Mühlbauer, E, Philipp, N, Pratikakis, I, Puigcerver Pérez, J, Putz, H, Retsinas, G, Romero, V, Sablatnig, R, Sánchez, JA, Schofield, P, Sfikas, G, Sieber, C, Stamatopoulos, N, Strauß, T, Terbul, T, Toselli, AH, Ulreich, B, Villegas, M, Vidal, E, Walcher, J, Weidemann, M, Wurster, H, Zagoris, Konstantinos "Transforming scholarship in the archives through handwritten text recognition: Transkribus as a case study", Journal of documentation,
  • Journal Christos Veinidis, Ioannis Pratikakis, Theoharis Theoharis "Unsupervised human action retrieval using salient points in 3D mesh sequences", Multimedia Tools and Applications, Vol. 78, (2789-2814)
  • Conference I. Pratikakis, K. Zagoris, X. Karagiannis, L. Tsochatzidis, T. Mondal, I. Marthot-Santaniello "ICDAR 2019 Competition on Document Image Binarization (DIBCO 2019)", 15th IAPR International Conference on Document Analysis and Recognition (ICDAR’19),

2018

  • Journal A. Danelakis, T. Theoharis,, I. Pratikakis "Action unit detection in 3D facial videos with application in facial expression retrieval and recognition", Accepted for publication to Multimedia Tools and Applications, https://doi.org/10.1007/s11042-018-5699-9,
  • Journal K. Sfikas, T. Theoharis, I. Pratikakis "Ensemble of PANORAMA-based Convolutional Neural Networks for 3D Model Classification and Retrieval", Computers and Graphics, Vol. 71, (208-218)
  • Journal M. Savelonas, I. Pratikakis, T. Theoharis, G. Thanellas, F. Abad, R. Bendahan "Spatially sensitive statistical shape analysis for pedestrian recognition from LIDAR data", Accepted for publication to Computer Vision and Image Understanding,
  • Journal C. Veinidis, I. Pratikakis,, T. Theoharis "Unsupervised Human Action Retrieval using Salient Points in 3D Mesh Sequences", Accepted for publication to Multimedia Tools and Applications, – Special Issue on Content-based Multimedia Indexing,

2017

  • Journal L. Tsochatzidis, K. Zagoris, N. Arikidis, A. Karahaliou, L. Costaridou, I. Pratikakis "Computer-aided diagnosis of mammographic masses based on a supervised content-based image retrieval approach", Pattern Recognition, Vol. 71, (106-117)
  • Journal C. Veinidis, I. Pratikakis, T. Theoharis "On the retrieval of 3D mesh sequences of human actions", Multimedia Tools and Applications, Vol. 76, Issue 2, (2059-2085)
  • Journal "Part-based 3D object retrieval via multi-label optimization ", journal = "Computer Vision and Image Understanding ", volume = "160", number = "", pages = "148-157", year = "2017", note = "", issn = "1077-3142", doi = "http://doi.org/10.1016/j.cviu.2017.04.006", url = "http://www.sciencedirect.com/science/article/pii/S1077314217300681", author = "P. Theologou , I. Pratikakis and T. Theoharis", keywords = "3D object retrieval", keywords = "3D mesh segmentation", keywords = "Part-based representation "",
  • Journal G, Ioannakis, A. Koutsoudis, I. Pratikakis, C. Chamzas "RETRIEVAL – An online performance evaluation tool for information retrieval methods", IEEE Transactions on Multimedia, Vol. 20, Issue 1, (119-127)
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  • Journal P. Theologou, I. Pratikakis, T. Theoharis "Unsupervised Spectral Mesh Segmentation Driven by Heterogeneous Graphs", IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 39, Issue 2, (397-410)
  • Journal K. Zagoris, I. Pratikakis,, B. Gatos "Unsupervised Word Spotting in Historical Handwritten documents using Document-oriented local features", IEEE Transactions on Image Processing, Vol. 26, Issue 8, (4032-4041)
  • Conference K. Sfikas, T. Theoharis, I. Pratikakis "{Exploiting the PANORAMA Representation for Convolutional Neural Network Classification and Retrieval}", Eurographics Workshop on 3D Object Retrieval,
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  • Conference K. Zagoris, I. Pratikakis "Bio-Inspired Modeling for the Enhancement of Historical Handwritten Documents", 2017 14th IAPR International Conference on Document Analysis and Recognition (ICDAR), (287--292)
  • Conference I. Pratikakis, K. Zagoris, G. Barlas, B. Gatos "ICDAR 2017 Competition on Document Image Binarization (DIBCO 2017)", 2017 14th IAPR International Conference on Document Analysis and Recognition (ICDAR), (1395--1403)
  • Book Chapter G. Barlas, K. Zagoris, I. Pratikakis "Handwritten keyword spotting – The Query by Example (QbE) case",

2016

  • Journal A. Danelakis, T. Theoharis, I. Pratikakis "A robust spatio-temporal scheme for dynamic 3D facial expression retrieval", The Visual Computer, Vol. 32, Issue 2, (257--269)
  • Journal A. Danelakis, T. Theoharis, I. Pratikakis "A spatio-temporal wavelet-based descriptor for dynamic 3D facial expression retrieval and recognition", The Visual Computer, Vol. 32, Issue 6-8, (1001--1011)
  • Journal A. Danelakis, T. Theoharis, I. Pratikakis, P. Perakis "An effective methodology for dynamic 3D facial expression retrieval", Pattern Recognition, Vol. 52, (174--185)
  • Journal M. Savelonas, I. Pratikakis,, K. Sfikas "Fisher encoding of differential fast point feature histograms for partial 3D object retrieval", Pattern Recognition, Vol. 55, (114--124)
  • Conference I. Pratikakis et al. "{Partial Shape Queries for 3D Object Retrieval}", Eurographics Workshop on 3D Object Retrieval,
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  • Conference George Ioannakis, Christodoulos Chamzas, Anestis Koutsoudis, Nikolaos Papamarkos, Ioannis Pratikakis, Fotis Arnaoutoglou, Nikolaos Mitianoudis, Thomas Sgouros "Applying conformal geometry for creating a 3d model spatial-consistent texture map", 2016 Digital Media Industry & Academic Forum (DMIAF), (117--120)
  • Conference I. Pratikakis, K. Zagoris, G. Barlas, B. Gatos "ICFHR 2016 Handwritten Document Image Binarization Contest (H-DIBCO 2016)", Frontiers in Handwriting Recognition (ICFHR), 2016 15th International Conference on, (619--623)
  • Conference I. Pratikakis, K. Zagoris, B. Gatos, J. Puigcerver, A. Toselli,, E. Vidal "ICFHR 2016 Handwritten Keyword Spotting Competition (H-KWS 2016)", Frontiers in Handwriting Recognition (ICFHR), 2016 15th International Conference on, (613--618)

2015

  • Journal Theologou, Panagiotis, Pratikakis, Ioannis, Theoharis, Theoharis "A comprehensive overview of methodologies and performance evaluation frameworks in 3D mesh segmentation", Computer Vision and Image Understanding, Vol. 135, (49--82)
  • Journal Danelakis, Antonios, Theoharis, Theoharis, Pratikakis, Ioannis "A robust spatio-temporal scheme for dynamic 3D facial expression retrieval", The Visual Computer, (1--13)
  • Journal Kulkarni, Prathamesh M, Barton, Emily, Savelonas, Michalis, Padmanabhan, Raghav, Lu, Yanbin, Trett, Kristen, Shain, William, Leasure, J Leigh, Roysam, Badrinath "Quantitative 3-D analysis of GFAP labeled astrocytes from fluorescence confocal images", Journal of neuroscience methods, Vol. 246, (38--51)
  • Journal Vlachopoulos, Georgios, Korfiatis, Panayiotis, Skiadopoulos, Spyros, Kazantzi, Alexandra, Kalogeropoulou, Christina, Pratikakis, Ioannis, Costaridou, Lena "Selecting registration schemes in case of interstitial lung disease follow-up in CT", Medical physics, Vol. 42, Issue 8, (4511--4525)
  • Conference Zagoris K., Pratikakis I.,, Gatos B. "A Framework for Efficient Transcription of Historical Documents Using Keyword Spotting", In 3rd International Workshop on Historical Document Imaging and Processing (HIP’15),,
  • Conference Antonios Danelakis, Theoharis Theoharis, Ioannis Pratikakis "A Spatio-Temporal Descriptor for Dynamic 3D Facial Expression Retrieval and Recognition", In Eurographics Workshop on 3D Object Retrieval, (63--70)
  • Conference L. Tsochatzidis, A. Karahaliou, K. Zagoris, S. Skiadopoulos, N. Arikidis, L. Costaridou, I. Pratikakis "A two-stage SVM-based mammographic CBIR for CADx", in Proc. MICCAI, Workshop on Breast Image Analysis,
  • Conference M. Savelonas, I. Pratikakis, K. Sfikas "Partial 3D Object Retrieval combining Local Shape Descriptors with Global Fisher Vectors", In Eurographics Workshop on 3D Object Retrieval, (23-30)
  • Conference A. Koutsoudis, G. Ioannakis, I. Pratikakis,, C. Chamzas "RETRIEVAL3D : An On-line Content-Based Retrieval Performance Evaluation Tool", In Eurographics Workshop on 3D Object Retrieval, (95--98)
  • Conference N. Arikidis, S. Skiadopoulos, A. Karahaliou, A. Kazantzi, K. Vassiou, L. Tsochatzidis, I. Pratikakis, L. Costaridou "Shortest Paths of Mass Contour Estimates in Mammography", in Proc. MICCAI, Workshop on Breast Image Analysis,

2014

  • Journal K. Ntirogiannis, B. Gatos, I. Pratikakis "A combined approach for the binarization of handwritten document images", Pattern Recognition Letters, Vol. 35, (3 - 15)
  • Journal P. Theologou I. Pratikakis, T. Theoharis "A Review on 3D Object Retrieval Methodologies Using a Part-Based Representation", Computer-Aided Design and Applications, Vol. 11, Issue 6, (670 - 684)
  • Journal A. Danelakis ,T. Theoharis, I. Pratikakis "A survey on facial expression recognition in 3D video sequences", Multimedia Tools and Applications, (1 - 39)
  • Journal Savelonas, Michalis A, Pratikakis, Ioannis, Sfikas, Konstantinos "An overview of partial 3D object retrieval methodologies", Multimedia Tools and Applications, (1--26)
  • Journal M. Savelonas, I. Pratikakis, K. Sfikas "An overview of partial 3D object retrieval methodologies", Multimedia Tools and Applications, (1 - 26)
  • Journal E.A. Mylona, M.A. Savelonas, D. Maroulis "Automated Adjustment of Region-Based Active Contour Parameters using Local Image Geometry", IEEE Transactions on Cybernetics,
  • Journal K. Zagoris, I. Pratikakis, A. Antonacopoulos, B. Gatos, N. Papamarkos "Distinction between handwritten and machine-printed text based on the bag of visual words model", Pattern Recognition, Vol. 47, Issue 3, (1051-1062)
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  • Journal K. Sfikas, I. Pratikakis, A. Koutsoudis, M. Savelonas, T. Theoharis "Partial Matching of 3D Cultural Heritage Objects using Panoramic Views", Multimedia Tools and Applications,
  • Journal K. Sfikas, T.Theoharis, I. Pratikakis "Pose normalization of 3D models via reflective symmetry on panoramic views", The Visual Computer, (1 - 14)
  • Journal E.A. Mylona, M.A. Savelonas, D. Maroulis "Self-parameterized Active Contours based on Regional Edge Structure for Medical Image Segmentation", SpringerPlus,
  • Journal Zagoris, K., Pratikakis, I. "Text detection on natural images using mnemonic cellular automata", Journal of Cellular Automata, Vol. 9, Issue 2-3, (183-194)
  • Conference M. Savelonas, I. Pratikakis, K. Sfikas "Fisher Encoding of Adaptive Fast Persistent Feature Histograms for Partial Retrieval of 3D Pottery Objects", Eurographics Workshop on 3D Object Retrieval, (61 - 68)
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  • Conference A. Danelakis, T. Theoharis, I. Pratikakis "GeoTopo: Dynamic 3D Facial Expression Retrieval Using Topological and Geometric Information", Eurographics Workshop on 3D Object Retrieval, (1 - 8)
  • Conference I. Pratikakis, K. Zagoris, B. Gatos, G. Louloudis, N. Stamatopoulos "ICFHR 2014 Competition on Handwritten KeyWord Spotting (H-KWS 2014)", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), (814-819)
  • Conference K. Ntirogiannis, B. Gatos, I. Pratikakis "ICFHR2014 Competition on Handwritten Document Image Binarization (H-DIBCO 2014)", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), (809-813)
  • Conference Tsochatzidis, Lazaros, Zagoris, Konstantinos, Savelonas, Michalis, Papamarkos, Nikos, Pratikakis, Ioannis, Arikidis, Nikolaos, Costaridou, Lena "Microcalcification oriented content-based mammogram retrieval for breast cancer diagnosis", Imaging Systems and Techniques (IST), 2014 IEEE International Conference on, (257--262)
  • Conference K. Sfikas, I. Pratikakis, T. Theoharis "Non-Rigid 3D Object Pose Normalization based on Core Segment Symmetrical Features,", CAD’14,
  • Conference C. Veinidis, I. Pratikakis, T. Theoharis "Querying 3D mesh sequences for human action retrieval", 2014 2nd International Conference on 3D Vision, (33--40)
  • Conference K. Zagoris, I. Pratikakis, B. Gatos "Segmentation-based Historical Handwritten Word Spotting using Document-Specific Local Features", 14th International Conference on Frontiers in Handwriting Recognition (ICFHR’14), (9-14)
  • Conference L. Tsochatzidis, K. Zagoris, M. Savelonas, I. Pratikakis "SVM-based {CBIR} of breast masses on mammograms", Proceedings of the 3rd International Workshop on Artificial Intelligence and Assistive Medicine co-located with the 21th European Conference on Artificial Intelligence {(ECAI} 2014), (26 - 30)
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  • Book Chapter D. Bariamis, M. Savelonas, D. Maroulis "Machine Learning-Based DNA Microarray Image Gridding",
  • Book Chapter E.A. Mylona, M.A. Savelonas, D. Maroulis "Towards Self-parameterized Active Contours for Medical Image Segmentation with Emphasis on Abdomen",

2013

  • Journal K. Sfikas, T. Theoharis, I. Pratikakis "3D object retrieval via range image queries in a bag-of-visual-words context", The Visual Computer, Vol. 29, Issue 12, (1351 - 1361)
  • Journal A. Bolovinou, I. Pratikakis, S. Perantonis "Bag of spatio-visual words for context inference in scene classification", Pattern Recognition, Vol. 46, Issue 3, (1039 - 1053)
  • Journal M. Anthimopoulos, B. Gatos, I. Pratikakis "Detection of artificial and scene text in images and video frames", Pattern Analysis and Applications, Vol. 16, Issue 3, (431 - 446)
  • Journal "Dynamic two-stage image retrieval from large multimedia databases", journal = "Information Processing & Management", volume = "49", number = "1", pages = "274 - 285", year = "2013", note = "", issn = "0306-4573", doi = "10.1016/j.ipm.2012.03.005", url = "http://www.sciencedirect.com/science/article/pii/S0306457312000489", author = "A. Arampatzis, K. Zagoris and S.A. Chatzichristofis", keywords = "Multimodal retrieval", keywords = "Multimedia retrieval", keywords = "Image retrieval", keywords = "Fusion"",
  • Journal S. Chountasis, M. Savelonas "Image Reconstruction from an Efficient Number of Moment-Based Projections", International Journal of Computer Mathematics, Vol. 90, Issue 4, (1040 - 1056)
  • Journal A. Koutsoudis, I.Pratikakis, C. Chamzas "On 3D object retrieval benchmarking", 3D Research, Vol. 4, Issue 4, (1 - 12)
  • Journal K. Ntirogiannis, B. Gatos, I. Pratikakis "Performance evaluation methodology for historical document image binarization", Image Processing, IEEE Transactions on, Vol. 22, Issue 2, (595 - 609)
  • Journal K. Ntirogiannis, B. Gatos, I. Pratikakis "Performance Evaluation Methodology for Historical Document Image Binarization", IEEE Transactions on Image Processing, Issue 2, (595-609)
  • Conference K. Sfikas, I. Pratikakis, A. Koutsoudis, M.Savelonas, T. Theoharis "3D object partial matching using panoramic views", New Trends in Image Analysis and Processing--ICIAP 2013, (169 - 178)
  • Conference K. Sfikas, I. Pratikakis, A. Koutsoudis, M.A. Savelonas, T. Theoharis "3D Object Partial Matching Using Panoramic Views", ICIAP Workshops, (169-178)
  • Conference V. Virvilis, S. Perantonis, K. Zagoris, I. Pratikakis "A multimodal e-learning environment for orthopedics: design and implementation challenges", System Theory, Control and Computing (ICSTCC), 2013 17th International Conference, (728 - 732)
  • Conference P. Theologou, I. Pratikakis,, T. Theoharis "A review on 3D object retrieval methodologies using a part-based representation, Extended Abstract", CAD’13,
  • Conference E.A. Mylona, M.A. Savelonas, D. Maroulis "Automated parameterization of active contours: A brief survey", Proc. IEEE International Symposium on Signal Processing and Information Technology, (344-349)
  • Conference E.A. Mylona, M.A. Savelonas, D. Maroulis, A.N. Skodras "Autopilot spatially-adaptive active contour parameterization for medical image segmentation", Proc. IEEE Computer-Based Medical Systems, (268-272)
  • Conference I. Pratikakis, B. Gatos, K. Ntirogiannis "ICDAR 2013 document image binarization contest (DIBCO 2013)", Document Analysis and Recognition (ICDAR), 2013 12th International Conference on, (1471 - 1476)
  • Conference K. Zagoris, I. Pratikakis, V. Virvilis, P. Perantonis "ORTHO-eMAN: A Web-based e-Training Platform for Orthopedics", NHIBE – 8th International Conference on New Horizons in Industry, Business and Education, (97-104)
  • Conference E.A. Mylona, M.A. Savelonas, D. Maroulis "Self-adjusted active contours using multi-directional texture cues", Proc. IEEE International Conference on Image Processing, (3026-3030)
  • Conference K. Sfikas, I. Pratikakis, T. Theoharis "Sympan: 3d model pose normalization via panoramic views and reflective symmetry", Proceedings of the Sixth Eurographics Workshop on 3D Object Retrieval, (41 - 48)
  • Conference K. Sfikas, I. Pratikakis, T. Theoharis "SymPan: 3D Model Pose Normalization via Panoramic Views and Reflective Symmetry", Eurographics Workshop on 3D Object Retrieval, (41 - 48)
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  • Conference K. Zagoris, I. Pratikakis "Text Detection in Natural Images Using Bio-inspired Models", Document Analysis and Recognition (ICDAR), 2013 12th International Conference on, (1370-1374)
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  • Conference Y. Xu, M.A. Savelonas, P. Qiu, K. Trett, W. Shain, B. Roysam "Unsupervised inference of arbor morphology progression for microglia from confocal microscope images", Proc. IEEE International Symposium on Biomedical Imaging, (1356-1359)

2012

  • Journal Ntirogiannis, K., Gatos, B., Pratikakis, I. "A Combined Approach for the Binarization of Handwritten Document Images", Pattern Recognition Letters,
  • Journal N. Stamatopoulos, B. Gatos, I. Pratikakis "A methodology for document image dewarping techniques performance evaluation", IET Image Processing, Vol. 20, Issue 4, (910-920)
  • Journal Iakovidis, DK, Tsevas, S., Savelonas, MA, Papamichalis, G. "Image Analysis Framework for Infection Monitoring", Biomedical Engineering, IEEE Transactions on, Vol. 59, Issue 4, (1135--1144)
  • Journal Sfikas, K., Theoharis, T., Pratikakis, I. "Non-rigid 3D object retrieval using topological information guided by conformal factors", The Visual Computer, (1--13)
  • Journal Savelonas, M.A., Mylona, E.A., Maroulis, D. "Unsupervised 2D gel electrophoresis image segmentation based on active contours", Pattern Recognition, Vol. 45, Issue 2, (720--731)
  • Conference A. Danelakis, T. Theoharis, I. Pratikakis "3D Mesh Video Retrieval: A Survey", 3DTV-CONFERENCE 2012, The True Vision, Capture, Transmission and Display of 3D Video,,
  • Conference K. Sfikas, I. Pratikakis, T. Theoharis "3D Object Retrieval via Range Image Queries based on SIFT descriptors on Panoramic Views", Eurographics 2012 Workshop on 3D Object Retrieval, (9 - 15)
  • Conference E.A. Mylona, M.A. Savelonas, D. Maroulis "A Computational Method for Protein Detection", in Proc. Panhellenic Physics Conference,
  • Conference Chatzichristofis, Savvas, Zagoris, Konstantinos, Boutalis, Yiannis, Arampatzis, Avi "A Fuzzy Rank-Based Late Fusion Method for Image Retrieval", Advances in Multimedia Modeling, (463-472)
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  • Conference E.A. Mylona, M.A. Savelonas, D. Maroulis "Entropy-based Spatially-varying Adjustment of Active Contour Parameters", IEEE International Conference on Image Processing,
  • Conference Zagoris, K., Pratikakis, I., Antonacopoulos, A., Gatos, B., Papamarkos, N. "Handwritten and Machine Printed Text Separation in Document Images using the Bag of Visual Words Paradigm", 13th International Conference on Frontiers in Handwriting Recognition (ICFHR’12),
  • Conference Pratikakis I., Gatos B.,, Ntirogiannis K. "ICFHR 2012 Competition on Handwritten Document Image Binarization (H-DIBCO2012)", 13th International Conference on Frontiers in Handwriting Recognition (ICFHR’12),,
  • Conference Zagoris, K., Pratikakis, I. "Scene Text Detection on Images Using Cellular Automata", 10th International Conference on Cellular Automata for Research and Industry (ACRI’12),
  • Conference Tsochatzidis, L., Kapoutsis, A., Dourvas, N., Chatzichristofis, S., Boutalis, Y., Zagoris, K. "TsoKaDo: An Image Search Engine Performing Recursive Query Recommendation Based on Visual Information", ACHI 2012, The Fifth International Conference on Advances in Computer-Human Interactions, (106--111)
  • Other R.K. Padmanabhan, V. Somasundar, A. Mukherjee, M. Savelonas, P. Kulkarni, Y. Xu, N. Rey-Villamizar, J. Luisi, B. Busse, Y. Lu, A. Cheong, K. Trett, C. Harris, P. Chong, X. Liao, B. Roysam, W. Shain, L. Carin "3-D Cytometric Mapping of Brain Tissue Surrounding Implanted Devices"
  • Other P. Kulkarni, M. Savelonas, J. Luisi, B. Busse, R.K. Padmanabhan, V. Somasundar, K. Trett, C. Harris, P. Chong, W. Shain, B. Roysam "A Machine-learning Method for Identification and Tracing of Astrocyte Cells in 3D Confocal Microscopy Images"
  • Other B. Busse, R. Padmanabhan, M. Savelonas, Y. Xu, W. Shain, S. Smith, B. Roysam, "Actively-linked Analytical Methods for Quantitative Profiling of Glia and Punctate Structures"
  • Other Y. Xu, Y. Lu, J. Luisi, A. Cheong, N. Rey-Villamizar, R.K. Padmanabhan, V. Somasundar, P. Kulkarni, B. Busse, M. Savelonas, K. Trett, C. Harris, P. Chong, W. Shain, B. Roysam "Arborial Analysis of Microglial Response to Microfabricated Silicon Device Implantation"
  • Other H. Dinh, M. Savelonas, B. Roysam, F. Laezza, D. Labate "Automated Quantitative Image Analysis of Voltage-Gated Na+ Channels at the Axonal Initial Segment"
  • Other W. Shain, K. Trett, C. Harris, P. Chong, B. Roysam, R. Padmanabhan, Y. Xu, Y. Lu, J. Luisi, M. Savelonas, B. Busse, V. Somasundar, N. Rey-Villamizar, P. Kulkarni, H. Cheung, A. Cheong, D. Kipke, C. Stoetzner, R. Vetter, L. Carin "Changes in Astrocyte, Microglia and Neuron Morphologies and Distributions around Implanted Microfabricated Neural Prosthetic Devices of Different Designs"
  • Other A. Mukherjee, M. Savelonas, P. Kulkarni, V. Somasundar, Y. Xu, N. Rey-Villamizar, R.K. Padmanabhan, J. Luisi, B. Busse, Y. Lu, A. Cheong, K. Trett, C. Harris, P. Chong, W. Shain, B. Roysam "Efficient Tree-based Tracing of Glial Cells in 3D Confocal Image Stacks"
  • Other B. Roysam, R. Padmanabhan, Y. Xu, Y. Lu, J. Luisi, M. Savelonas, B. Busse, V. Somasundar, N. Rey-Villamizar, P. Kulkarni, H. Cheung, A. Cheong, L. Carin, C.-L. Tsai, K. Trett, C. Harris, P. Chong, W. Shain "FARSIGHT: A Computational Toolkit for Quantitative Three-Dimensional Multiparameter Profiling of Gliovascular Brain Tissue Surrounding Implanted Neuroprosthetic Devices"
  • Other B. Roysam, R. Padmanabhan, Y. Xu, Y. Lu, J. Luisi, M. Savelonas, B. Busse, V. Somasundar, N. Rey-Villamizar, P. Kulkarni, H. Cheung, A. Cheong, L. Carin, C.-L. Tsai, K. Trett, C. Harris, P. Chong, D. Kipke, C. Stoetzner, R. Vetter, W. Shain "Quantitative 3-D Cellular-Scale Profiling of Brain Tissue Surrounding Implanted Devices"

2011

  • Journal Mylona, E.A., Savelonas, M.A., Maroulis, D., Kossida, S. "A Computer-Based Technique for Automated Spot Detection in Proteomics Images", Information Technology in Biomedicine, IEEE Transactions on, Vol. 15, Issue 4, (661--667)
  • Journal Kesidis, AL, Galiotou, E., Gatos, B., Pratikakis, I. "A word spotting framework for historical machine-printed documents", International journal on document analysis and recognition, Vol. 14, Issue 2, (131--144)
  • Journal Legakis, I., Savelonas, M.A., Maroulis, D., Iakovidis, D.K. "Computer-based nodule malignancy risk assessment in thyroid ultrasound images", International Journal of Computers and Applications, Vol. 33, Issue 1, (29)
  • Journal Anthimopoulos, M., Gatos, B., Pratikakis, I. "Detection of artificial and scene text in images and video frames", Pattern Analysis & Applications, (1--16)
  • Journal Gatos, B., Ntirogiannis, K., Pratikakis, I. "DIBCO 2009: document image binarization contest", International journal on document analysis and recognition, Vol. 14, Issue 1, (35--44)
  • Journal Stamatopoulos, N., Gatos, B., Pratikakis, I., Perantonis, S.J. "Goal-oriented rectification of camera-based document images", Image Processing, IEEE Transactions on, Vol. 20, Issue 4, (910--920)
  • Journal Konstantinos Zagoris, Kavallieratou Ergina, Nikos Papamarkos "Image retrieval systems based on compact shape descriptor and relevance feedback information", Journal of Visual Communication and Image Representation, Vol. 22, Issue 5, (378 - 390)
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  • Journal Sfikas, K., Theoharis, T., Pratikakis, I. "ROSy+: 3D object pose normalization based on pca and reflective object symmetry with application in 3D object retrieval", International Journal of Computer Vision, Vol. 91, Issue 3, (262--279)
  • Journal Zagoris, Konstantinos, Chatzichristofis, Savvas, Papamarkos, Nikos "Text localization using standard deviation analysis of structure elements and support vector machines", EURASIP Journal on Advances in Signal Processing, Vol. 2011, Issue 1, (47)
    Read here →
  • Conference Mylona, EA, Savelonas, MA, Maroulis, D., Aivaliotis, M. "2D-GE image segmentation based on level-sets", Image Processing (ICIP), 2011 18th IEEE International Conference on, (2141--2144)
  • Conference Savelonas, M.A., Mylona, E.A., Maroulis, D. "An automatically initialized level-set approach for the segmentation of proteomics images", Biomedical Engineering, 2011 10th International Workshop on, (1--4)
  • Conference Zagoris, Konstantinos, Chatzichristofis, Savvas A.and Arampatzis, Avi "Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval", Proceedings of the 34th international ACM SIGIR conference on Research and development in Information, (1251--1252)
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  • Conference Ntirogiannis, K., Gatos, B., Pratikakis, I. "Binarization of Textual Content in Video Frames", Document Analysis and Recognition (ICDAR), 2011 International Conference on, (673--677)
  • Conference Chatzistavros, E., Chatzichristos, S.A., Stamatellos, G., Zagoris, K. "Comparative Performance Evaluation of Image Descriptors over IEEE 802.11 b Noisy Wireless Networks", Multimedia and Ubiquitous Engineering (MUE), 2011 5th FTRA International Conference on, (128--133)
  • Conference Sfikas, K., Pratikakis, I., Theoharis, T. "Contopo: Non-rigid 3d object retrieval using topological information guided by conformal factors", Eurographics Workshop on 3D Object Retrieval, (25--32)
  • Conference Arampatzis, Avi, Zagoris, Konstantinos, Chatzichristofis, Savvas A. "Dynamic two-stage image retrieval from large multimodal databases", Proceedings of the 33rd European conference on Advances in information retrieval, (326--337)
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  • Conference Arampatzis, Avi, Zagoris, Konstantinos, Chatzichristofis, Savvas A. "Fusion vs. two-stage for multimodal retrieval", Proceedings of the 33rd European conference on Advances in information retrieval, (759--762)
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  • Conference Pratikakis, I., Gatos, B., Ntirogiannis, K. "ICDAR 2011 document image binarization contest (DIBCO 2011)", Document Analysis and Recognition (ICDAR), 2011 International Conference on, (1506--1510)
  • Conference Chatzichristofis, Savvas A., Zagoris, Konstantinos, Arampatzis, Avi "The TREC files: the (ground) truth is out there", Proceedings of the 34th international ACM SIGIR conference on Research and development in Information, (1289--1290)
    Read here →
  • Book Chapter Vanhamel, I.U., Pratikakis, I., Sahli, H. "Scale-Space Representations for Gray-Scale and Color Images", (155--178)
  • Book Chapter Pratikakis, I., Bolovinou, A., Gatos, B., Perantonis, S. "Semantics extraction from images", (50--88)

2010

  • Journal Konstantinos Zagoris, Kavallieratou Ergina, Nikos Papamarkos "A Document Image Retrieval System", Engineering Applications of Artificial Intelligence, Vol. 23, Issue 6, (872 - 879)
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  • Journal Anthimopoulos, M., Gatos, B., Pratikakis, I. "A two-stage scheme for text detection in video images", Image and Vision Computing, Vol. 28, Issue 9, (1413--1426)
  • Journal Chatzichristofis, S.A., Zagoris, K., Boutalis, Y.S., Papamarkos, N. "Accurate image retrieval based on compact composite descriptors and relevance feedback information", International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI), Vol. 24, Issue 2, (207--244)
  • Journal Savelonas, M.A., Chountasis, S. "Noise-resistant watermarking in the fractional Fourier domain utilizing moment-based image representation", Signal Processing, Vol. 90, Issue 8, (2521--2528)
  • Journal Papadakis, P., Pratikakis, I., Theoharis, T., Perantonis, S. "Panorama: A 3d shape descriptor based on panoramic views for unsupervised 3d object retrieval", International Journal of Computer Vision, Vol. 89, Issue 2, (177--192)
  • Journal Agathos, A., Pratikakis, I., Perantonis, S., Sapidis, N.S. "Protrusion-oriented 3D mesh segmentation", The Visual Computer, Vol. 26, Issue 1, (63--81)
  • Conference Savelonas, M., Mylona, E., Maroulis, D. "A level set approach for proteomics image analysis", Proceedings of the European Signal Processing Conference (EUSIPCO), (1229--1233)
  • Conference Mylona, E., Savelonas, M., Maroulis, D. "A two-stage active contour-based scheme for spot detection in proteomics images", Information Technology and Applications in Biomedicine (ITAB), 2010 10th IEEE International Conference on, (1--4)
  • Conference Ntirogiannis, K., Gatos, B., Pratikakis, I. "An Objective Evaluation Methodology for Handwritten Image Document Binarization Techniques", at the 11th International Conference on Frontiers in Handwriting Recognition (ICFHR'08) pp, (586--591)
  • Conference Zagoris, K., Chatzichristofis, S.A., Papamarkos, N., Boutalis, Y.S. "Automatic Image Annotation and Retrieval Using the Joint Composite Descriptor", Informatics (PCI), 2010 14th Panhellenic Conference on, (143 -147)
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  • Conference Pratikakis, I., Gatos, B., Ntirogiannis, K. "H-DIBCO 2010-handwritten document image binarization competition", Frontiers in Handwriting Recognition (ICFHR), 2010 International Conference on, (727--732)
  • Conference Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris "Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval", CLEF (Notebook Papers/LABs/Workshops),
  • Conference Mylona, EA, Savelonas, MA, Maroulis, D., Vlahou, A., Makridakis, M. "Protein spot detection in 2D-GE images using morphological operators", Computer-Based Medical Systems (CBMS), 2010 IEEE 23rd International Symposium on, (291--296)
  • Conference Konstantinos Zagoris, Nikos Papamarkos "Text Extraction Using Document Structure Features and Support Vector Machines", Proceedings of the 11th IASTED International Conference, (88)
  • Conference Zagoris, Konstantinos, Arampatzis, Avi, Chatzichristofis, Savvas A. "www.MMRetrieval.net: a multimodal search engine", Proceedings of the Third International Conference on SImilarity Search and APplications, (117--118)
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2009

  • Journal Savelonas, M., Maroulis, D., Sangriotis, M. "A computer-aided system for malignancy risk assessment of nodules in thyroid US images based on boundary features", Computer methods and programs in biomedicine, Vol. 96, Issue 1, (25--32)
  • Journal Savelonas, M.A., Iakovidis, D.K., Legakis, I., Maroulis, D. "Active contours guided by echogenicity and texture for delineation of thyroid nodules in ultrasound images", Information Technology in Biomedicine, IEEE Transactions on, Vol. 13, Issue 4, (519--527)
  • Journal Pratikakis, I., Karahaliou, A., Vassiou, K., Virvilis, V., Kosmopoulos, D., Perantonis, S. "eMedI: Web-Based E-Training for Multimodal Breast Imaging", International Journal of Biological and Medical Sciences, Vol. 1, Issue 2,
  • Journal Iakovidis, DK, Savelonas, MA, Papamichalis, G. "Robust model-based detection of the lung field boundaries in portable chest radiographs supported by selective thresholding", Measurement Science and Technology, Vol. 20, Issue 10, (104019)
  • Journal Vanhamel, I., Mihai, C., Sahli, H., Katartzis, A., Pratikakis, I. "Scale selection for compact scale-space representation of vector-valued images", International journal of computer vision, Vol. 84, Issue 2, (194--204)
  • Journal Louloudis, G., Gatos, B., Pratikakis, I., Halatsis, C. "Text line and word segmentation of handwritten documents", Pattern Recognition, Vol. 42, Issue 12, (3169--3183)
  • Conference Stamatopoulos, N., Gatos, B., Pratikakis, I. "A methodology for document image dewarping techniques performance evaluation", Document Analysis and Recognition, 2009. ICDAR'09. 10th International Conference on, (956--960)
  • Conference Ntirogiannis, K., Gatos, B., Pratikakis, I. "A modified adaptive logical level binarization technique for historical document images", Document Analysis and Recognition, 2009. ICDAR'09. 10th International Conference on, (1171--1175)
  • Conference Kesidis, A., Galiotou, E., Gatos, B., Lampropoulos, A., Pratikakis, I., Manolessou, I., Ralli, A. "Accessing the content of greek historical documents", Proceedings of The Third Workshop on Analytics for Noisy Unstructured Text Data, (55--62)
  • Conference Iakovidis, D.K., Savelonas, M. "Active shape model aided by selective thresholding for lung field segmentation in chest radiographs", Information Technology and Applications in Biomedicine, 2009. ITAB 2009. 9th International Conference on, (1--4)
  • Conference Gatos, B., Ntirogiannis, K., Pratikakis, I. "ICDAR 2009 document image binarization contest (DIBCO 2009)", Document Analysis and Recognition, 2009. ICDAR'09. 10th International Conference on, (1375--1382)
  • Conference Zagoris, Konstantinos, Chatzichristofis, Savvas A., Papamarkos, Nikos, Boutalis, Yiannis S. "img(Anaktisi): A Web Content Based Image Retrieval System", Proceedings of the 2009 Second International Workshop on Similarity Search and Applications, (154--155)
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  • Conference Agathos, A., Pratikakis, I., Papadakis, P., Perantonis, S., Azariadis, P., Sapidis, N. "Retrieval of 3D Articulated Objects using a graph-based representation", Eurographics Workshop on 3D Object Retrieval, (29--36)
  • Conference Savelonas, M., Maroulis, D., Mylona, E. "Segmentation of two-dimensional gel electrophoresis images containing overlapping spots", Information Technology and Applications in Biomedicine, 2009. ITAB 2009. 9th International Conference on, (1--4)
  • Conference Gatos, B., Pratikakis, I. "Segmentation-free word spotting in historical printed documents", Document Analysis and Recognition, 2009. ICDAR'09. 10th International Conference on, (271--275)
  • Conference Savelonas, M.A., Iakovidis, D.K. "Shielding Active Shape Models against Weak Lung Field Boundaries for Segmentation of Chest Radiographs", Proc. MICCAI’s 2nd Int. Workshop on Pulmonary Image Analysis, (83--91)
  • Book Chapter I. Pratikakis, I. Vanhamel, H. Sahli, B, Gatos, S. Perantonis "Object-Driven Content-Based Image Retrieval",

2008

  • Journal Zagoris, K., Papamarkos, N., Koustoudis, I. "Color Reduction using the Combination of the Kohonen Self-Organized Feature Map and the Gustafson-Kessel Fuzzy Algorithm", Transactions on Machine Learning and Data Mining, Vol. 1, Issue 1, (31--46)
  • Journal Savelonas, M.A., Iakovidis, D.K., Maroulis, D. "LBP-guided active contours", Pattern Recognition Letters, Vol. 29, Issue 9, (1404--1415)
  • Journal Papadakis, P., Pratikakis, I., Trafalis, T., Theoharis, T., Perantonis, S. "Relevance feedback in content-based 3d object retrieval: a comparative study", Computer-Aided Design and Applications Journal, Vol. 5, Issue 5,
  • Journal Louloudis, G., Gatos, B., Pratikakis, I., Halatsis, C. "Text line detection in handwritten documents", Pattern Recognition, Vol. 41, Issue 12, (3758--3772)
  • Conference Papadakis, P., Pratikakis, I., Theoharis, T., Passalis, G., Perantonis, S. "3D object retrieval using an efficient and compact hybrid shape descriptor", Eurographics Workshop on 3D object retrieval,
  • Conference Anthimopoulos, M., Gatos, B., Pratikakis, I. "A hybrid system for text detection in video frames", Document Analysis Systems, 2008. DAS'08. The Eighth IAPR International Workshop on, (286--292)
  • Conference Stamatopoulos, N., Gatos, B., Pratikakis, I., Perantonis, S.J. "A two-step dewarping of camera document images", Document Analysis Systems, 2008. DAS'08. The Eighth IAPR International Workshop on, (209--216)
  • Conference Ntirogiannis, K., Gatos, B., Pratikakis, I. "An objective evaluation methodology for document image binarization techniques", Document Analysis Systems, 2008. DAS'08. The Eighth IAPR International Workshop on, (217--224)
  • Conference Ntirogiannis, K., Gatos, B., Pratikakis, I. "An objective evaluation methodology for document image binarization techniques", Document Analysis Systems, 2008. DAS'08. The Eighth IAPR International Workshop on, (217--224)
  • Conference Papadakis, P., Pratikakis, I., Perantonis, S., Theoharis, T. "CIL3D: A content-based 3D model search engine", Proceedings of the 3rd international conference on Digital Interactive Media in Entertainment and Arts, (524--525)
  • Conference Savelonas, M.A., Maroulis, D.E., Iakovidis, D.K., Dimitropoulos, N. "Computer-Aided Malignancy Risk Assessment of Nodules in Thyroid US Images Utilizing Boundary Descriptors", Informatics, 2008. PCI'08. Panhellenic Conference on, (157--160)
  • Conference Konstantinos Zagoris, Kavallieratou Ergina, Nikos Papamarkos "Developing Document Image Retrieval System", Proc. Of IADIS International Conference Computer Graphics and Visualization 2008, (119-126)
  • Conference Gatos, B., Pratikakis, I., Perantonis, SJ "Efficient binarization of historical and degraded document images", Document Analysis Systems, 2008. DAS'08. The Eighth IAPR International Workshop on, (447--454)
  • Conference Pichis G., Pratikakis I., Arikidis N., Kalogeropoulou C., Karahaliou A., L. Costaridou "Evaluation of mutual information- based registration of bone lytic disease in CT follow up data", 6th European Symposium on Biomedical Engineering,
  • Conference Gatos, B., Pratikakis, I., Perantonis, SJ "Improved document image binarization by using a combination of multiple binarization techniques and adapted edge information", Pattern Recognition, 2008. ICPR 2008. 19th International Conference on, (1--4)
  • Conference Louloudis, G., Gatos, B., Pratikakis, I., Halatsis, C. "Line and word segmentation of handwritten documents", International Conference on Frontiers in Handwriting Recognition (ICFHR'08), Montreal, Canada, (247--252)
  • Conference Papadakis, P., Perantonis, S., Theoharis, T., Passalis, G., others "SHREC’08 entry: 2D/3D hybrid", Shape Modeling and Applications, 2008. SMI 2008. IEEE International Conference on, (247--248)

2007

  • Journal Agathos, A., Pratikakis, I., Perantonis, S., Sapidis, N., Azariadis, P. "3D mesh segmentation methodologies for CAD applications", Computer-Aided Design and Applications, Vol. 4, Issue 6, (827--841)
  • Journal Iakovidis, D.K., Savelonas, M.A., Karkanis, S.A., Maroulis, D.E. "A genetically optimized level set approach to segmentation of thyroid ultrasound images", Applied Intelligence, Vol. 27, Issue 3, (193--203)
  • Journal Ntzios, K., Gatos, B., Pratikakis, I., Konidaris, T., Perantonis, S.J. "An old greek handwritten OCR system based on an efficient segmentation-free approach", International Journal on Document Analysis and Recognition, Vol. 9, Issue 2, (179--192)
  • Journal Papadakis, P., Pratikakis, I., Perantonis, S., Theoharis, T. "Efficient 3D shape matching and retrieval using a concrete radialized spherical projection representation", Pattern Recognition, Vol. 40, Issue 9, (2437--2452)
  • Journal Konidaris T, Gatos B., Ntzios K., Pratikakis I., Theodoridis S.,, Perantonis S.J. "Keyword-guided word spotting in historical printed documents using synthetic data and relevance feedback", International Journal on Document analysis and recognition, Vol. 9, Issue 2-4, (167-177)
  • Journal Maroulis, D.E., Savelonas, M.A., Iakovidis, D.K., Karkanis, S.A., Dimitropoulos, N. "Variable background active contour model for computer-aided delineation of nodules in thyroid ultrasound images", Information Technology in Biomedicine, IEEE Transactions on, Vol. 11, Issue 5, (537--543)
  • Conference Zagoris, Konstantinos, Papamarkos, Nikos, Koustoudis, Ioannis "Color Reduction Using the Combination of the Kohonen Self-Organized Feature Map and the Gustafson-Kessel Fuzzy Algorithm", Proceedings of the 5th international conference on Machine Learning and Data Mining in Pattern Recognition, (703--715)
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  • Conference Savelonas, MA, Iakovidis, DK, Dimitropoulos, N., Maroulis, D. "Computational characterization of thyroid tissue in the radon domain", Computer-Based Medical Systems, 2007. CBMS'07. Twentieth IEEE International Symposium on, (189--192)
  • Conference Vanhamel, I., Mihai, C., Sahli, H., Pratikakis, I. "Content-based image retrieval via Multi-scale Graph-based Segmentation", Proc. 7th Dutch-Belgian Information Retrieval Workshop (DIR 2007), Leuven, Belgium,
  • Conference Anthimopoulos, M., Gatos, B., Pratikakis, I., Perantonis, SJ "Detecting text in video frames", The 4th International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA), (40--44)
  • Conference I. Pratikakis, V. Virvilis, D. Kosmopoulos, S. Perantonis, D. Tsatsos, A. Damianakis "E-MedI – A web-based e-training platform for breast imaging", The 3rd International Conference on Web Information Systems and Technologies (WEBIST), (338-345)
  • Conference Pratikakis, I., Kosmopoulos, DI, Virvilis, V., Karahaliou, A., Vassiou, K., Damianakis, A., Perantonis, S. "E-MedI – Interactive web-based e-training for breast imaging", IADIS International Conference WWW/Internet 2007, (19-26)
  • Conference Vamvakas, G., Stamatopoulos, N., Gatos, B., Pratikakis, I., Perantonis, SJ "Greek Handwritten character recognition", Proceedings of the Eleventh Panhellenic Conference in Informatics, vol. B, Patras, Greece, (343--352)
  • Conference Vamvakas, G., Gatos, B., Pratikakis, I., Stamatopoulos, N., Roniotis, A., Perantonis, S.J., others "Hybrid off-line OCR for isolated handwritten Greek characters", The Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA 2007), (197--202)
  • Conference Mihai, C., Vanhamel, I., Sahli, H., Katartzis, A., Pratikakis, I. "Scale Selection for Compact Scale-Space Representation of Vector-Valued Images", (32--42)
  • Conference Gatos, B., Pratikakis, I., Ntirogiannis, K. "Segmentation based recovery of arbitrarily warped document images", Document Analysis and Recognition, 2007. ICDAR 2007. Ninth International Conference on, (989--993)
  • Conference Anthimopoulos, M., Gatos, B., Pratikakis, I. "Text detection in video frames", 11th Panhellenic Conference on Informatics (PCI 2007), (361-370)
  • Book Chapter Iakovidis, D., Savelonas, M., Maroulis, D. "Adaptive vision system for segmentation of echographic medical images based on a modified mumford-shah functional", Advanced Concepts for Intelligent Vision Systems, (565--574)
  • Book Chapter Savelonas, M., Iakovidis, D., Maroulis, D. "Bimodal Texture Segmentation with the Lee-Seo Model", (246--253)

2006

  • Journal Gatos, B., Pratikakis, I., Perantonis, S.J. "Adaptive degraded document image binarization", Pattern Recognition, Vol. 39, Issue 3, (317--327)
  • Journal Gatos, B., Ntzios, K., Pratikakis, I., Petridis, S., Konidaris, T., Perantonis, SJ "An efficient segmentation-free approach to assist old Greek handwritten manuscript OCR", Pattern Analysis & Applications, Vol. 8, Issue 4, (305--320)
  • Journal Pratikakis, I., Vanhamel, I., Sahli, H., Gatos, B., Perantonis, SJ "Unsupervised watershed-driven region-based image retrieval", Vol. 153, Issue 3, (313--322)
  • Conference Louloudis, G., Gatos, B., Pratikakis, I., Halatsis, K., others "A block-based Hough transform mapping for text line detection in handwritten documents", Tenth International Workshop on Frontiers in Handwriting Recognition,
  • Conference Papadakis, P., Pratikakis, I., Perantonis, S., Theoharis, T. "A concrete radialized spherical projection descriptor for 3D shape retrieval",
  • Conference Gatos, B., Konidaris, T., Pratikakis, I., Perantonis, S. "A holistic methodology for keyword search in historical typewritten documents", (490--493)
  • Conference Savelonas, MA, Iakovidis, DK, Maroulis, DE "An LBP-based active contour algorithm for unsupervised texture segmentation", Pattern Recognition, 2006. ICPR 2006. 18th International Conference on, (279--282)
  • Conference C.D. Spyropoulos, G. Paliouras, V. Karkaletsis, D. Kosmopoulos, I. Pratikakis, S. Perantonis, B. Gatos "BOEMIE: Bootstrapping Ontology Evolution with Multimedia Information Extraction", International Workshop on Intelligent Information Access (IIIA-2006),
  • Conference Gatos, B., Pratikakis, I., Kesidis, AL, Perantonis, SJ, others "Efficient off-line cursive handwriting word recognition", Tenth International Workshop on Frontiers in Handwriting Recognition,
  • Conference Vanhamel, I., Pratikakis, I., Sahli, H. "Hierarchical segmentation using dynamics of multiscale color gradient watersheds", (371--379)
  • Conference Gatos, B., Pratikakis, I., Perantonis, SJ "Hybrid off-line cursive handwriting word recognition", Pattern Recognition, 2006. ICPR 2006. 18th International Conference on, (998--1002)
  • Conference Kosmopoulos, D., Petridis, S., Pratikakis, I., Gatos, V., Perantonis, S., Karkaletsis, V., Paliouras, G. "Knowledge Acquisition from Multimedia Content using an Evolution Framework", (557--565)
  • Conference Vanhamel, I., Pratikakis, I., Sahli, H. "Multiscale Graph Theory Based Color Segmentation", Image Processing, 2006 IEEE International Conference on, (769--772)
  • Conference Vanhamel, I., Sahli, H., Pratikakis, I. "Nonlinear multiscale graph theory based segmentation of color images", Pattern Recognition, 2006. ICPR 2006. 18th International Conference on, (407--411)
  • Conference Pratikakis, I., Barillot, C., Hellier, P. "Robust multi-scale non-rigid registration of 3D ultrasound images", (389--397)
  • Conference Pratikakis, I., Gatos, B., Thomopoulos, SC "Scene categorisation using low-level visual features", (25--28)
  • Conference Iakovidis, DK, Savelonas, MA, Karkanis, SA, Maroulis, DE "Segmentation of Medical Images with Regional Inhomogeneities", Pattern Recognition, 2006. ICPR 2006. 18th International Conference on, (976--979)
  • Conference M.A. Savelonas, D.E. Maroulis, D.K. Iakovidis "Texture Segmentation with Local Binary Patterns and Active Contour without Edges", in Proc. Panhellenic Physics Conference,
  • Conference Zagoris, K., Papamarkos, N., Chamzas, C. "Web Document Image Retrieval System Based on Word Spotting", Image Processing, 2006 IEEE International Conference on, (477 -480)
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  • Book Chapter Savelonas, M., Iakovidis, D., Maroulis, D., Karkanis, S. "An active contour model guided by LBP distributions", Advanced Concepts for Intelligent Vision Systems, (197--207)
  • Other I. Legakis, D. Maroulis, M. Savelonas "Automatic Detection and Diagnosis of Thyroid Nodules"

2005

  • Conference Savelonas, M.A., Maroulis, D.E., Iakovidis, D.K., Karkanis, S.A. "A Novel Deformable Model for Medical US Image Segmentation", Proc Pan Conf Inf (PCI), Volos, Greece, (469--474)
  • Conference Gatos, B., Konidaris, T., Ntzios, K., Pratikakis, I., Perantonis, S.J. "A segmentation-free approach for keyword search in historical typewritten documents", Document Analysis and Recognition, 2005. Proceedings. Eighth International Conference on, (54--58)
  • Conference Savelonas, M., Maroulis, D., Iakovidis, D., Karkanis, S., Dimitropoulos, N. "A variable background active contour model for automatic detection of thyroid nodules in ultrasound images",
  • Conference Koutsokeras, M., Pratikakis, I., Miaoulis, G. "A web-based 3D graphical model search engine", Proceedings of the Eighth International Conference on Computer Graphics and Artificial Intelligence, (11--12)
  • Conference Ntzios, K., Gatos, B., Pratikakis, I., Konidaris, T., Perantonis, SJ "An old Greek handwritten OCR system", International Conference on Document analysis and Recognition (ICDAR’05), (64--68)
  • Conference Gatos, B., Danatsas, D., Pratikakis, I., Perantonis, S. "Automatic table detection in document images", (609--618)
  • Conference Spyropoulos, C.D., Paliouras, G., Karkaletsis, V., Kosmopoulos, D., Pratikakis, I., Perantonis, S., Gatos, B. "BOEMIE: Bootstrapping ontology evolution with multimedia information extraction", Integration of Knowledge, Semantics and Digital Media Technology, 2005. EWIMT 2005. The 2nd European Workshop on the (Ref. No. 2005/11099), (419--420)
  • Conference Maroulis, DE, Savelonas, MA, Karkanis, SA, Iakovidis, DK, Dimitropoulos, N. "Computer-aided thyroid nodule detection in ultrasound images", Computer-Based Medical Systems, 2005. Proceedings. 18th IEEE Symposium on, (271--276)
  • Conference I. Pratikakis, I. Vanhamel, H. Sahli, B, Gatos, S. Perantonis "Object-driven content-based image retrieval", 12th International Workshop on Systems, Signals and Image Processing (IWSSIP'05), (189-193)
  • Conference Gatos, B., Pratikakis, I., Kepene, K., Perantonis, SJ "Text detection in indoor/outdoor scene images", Proc. First Workshop of Camera-based Document Analysis and Recognition, (127--132)
  • Conference M. Savelonas, D. Maroulis, D. Iakovidis "Thyroid US Image Processing and Nodule Detection", in Proc. Panhellenic Physics Conference,
  • Conference Gatos, B., Pratikakis, I., Perantonis, SJ "Towards text recognition in natural scene images", Proceedings of Int. Conf. Automation and Technology, (354--359)
  • Conference Pratikakis, I., Vanhamel, I., Sahli, H., Gatos, B., Perantonis, S. "Watershed-driven region-based image retrieval", (207--216)
  • Book Chapter Pratikakis I.,, Sahli H.,, Cornelis J. "3D Multiscale watershed segmentation of MR images", (271-314)

2004

  • Journal Perantonis, SJ, Gatos, B., Ntzios, K., Prattkakis, I., Vrettaros, I., Drigas, A., Emmanouilbdis, C., Kesidis, A., Kalomirakis, D. "A system for processing and recognition of old Greek manuscripts(the D-SCRIBE project).", WSEAS Transactions on Computers, Vol. 3, Issue 6, (2049--2057)
  • Journal Perantonis, S.J., Gatos, B., Ntzios K., Pratikakis, I., Vrettaros, I., Drigas, A., Emmanouilidis, C., Kesidis, A,, Kalomirakis, D. "Digitisation, Processing and Recognition of Old Greek Manuscripts(The D- SCRIBE Project)", International Journal on Information Theories & Applications (IJITA), Vol. 11, Issue 3, (232-240)
  • Conference Gatos, B., Pratikakis, I., Perantonis, S.J. "An adaptive binarization technique for low quality historical documents", (102--113)
  • Conference Gatos, B., Pratikakis, I., Perantonis, S. "Locating text in historical collection manuscripts", (476--485)
  • Conference I. Makris, I. Pratikakis "PROTEIN: A Procedural Texture Authoring tool", in Proceedings of 3rd Hellenic Conference on Artificial Intelligence, (288-297)
  • Conference G. Vafiadis, C. Aggelopoulos, V. Moulos, I. Pratikakis "Pythagoras : A 3D Interactive Geometry learning environment", in Proceedings of 3rd Hellenic Conference on Artificial Intelligence, (278-287)
  • Conference I. Pratikakis, I. Vanhamel, H, Sahli, Z. Efraimidis, B, Gatos, S. Perantonis "Unsupervised region-based image retrieval", IEE European Workshop on the Integration of Knowledge, Semantic and Digital Media Technologies, (39-46)

2003

  • Journal Vanhamel, I., Pratikakis, I., Sahli, H. "Multiscale gradient watersheds of color images", Image Processing, IEEE Transactions on, Vol. 12, Issue 6, (617--626)
  • Journal Pratikakis, I., Barillot, C., Hellier, P., M{é}min, E. "Robust multiscale deformable registration of 3D ultrasound images", International Journal of Image and Graphics, Vol. 3, Issue 04, (547--565)

2002

  • Conference Yang, L., Sahli, H., Pratikakis, I. "A Multigrid method for motion estimation based on diffusion process", 6th World Multiconference on systemics, cybernetics and informatics (SCI’2002), (371-377)
  • Conference Vanhamel, I., Sahli, H., Pratikakis, I. "Automatic watershed segmentation of color images", (207--214)

2000

  • Journal Zhang, K., Pratikakis, I., Cornelis, J., Nyssen, E. "Using landmarks to establish a point-to-point correspondence between signatures", Pattern Analysis & Applications, Vol. 3, Issue 1, (69--75)
  • Conference Michalis A. Savelonas, Ioannis Pratikakis, Konstantinos Sfikas "{Fisher Encoding of Adaptive Fast Persistent Feature Histograms for Partial Retrieval of 3D Pottery Objects}", (61-68)
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  • Conference Vanhamel ,I., Pratikakis, I., Sahli, H. "Hierarchical multiscale watershed segmentation of color images", First International Conference on Color in Graphics and Image Processing (CGIP'2000), (94-99)
  • Other Arampatzis, A., Zagoris, K., Chatzichristofis, S.A. "DUTH at ImageCLEF 2011 Wikipedia Retrieval"

1999

  • Journal Pratikakis, IE, Sahli, H., Cornelis, J. "Low level image partitioning guided by the gradient watershed hierarchy", Signal Processing, Vol. 75, Issue 2, (173--195)
  • Conference Pratikakis, I., Sahli, H., Cornelis, J. "Hierarchical segmentation using dynamics of multiscale gradient watersheds", PROCEEDINGS OF THE SCANDINAVIAN CONFERENCE ON IMAGE ANALYSIS, (577--584)
  • Conference Sahli, H., Rusu, S., Pratikakis, IE, Yang, L. "Motion and structure from combined optical flow: correspondences approach", AeroSense'99, (208--215)
  • Conference Pratikakis, I., Sahli, H., Deklerck,R., Cornelis, J. "Semi-automatic segmentation and labelling of 3D brain anatomical structures", VI International Conference on Medical Physics, (269-275)

1998

  • Journal Dendale, P., Franken, P.R., Block, P., Pratikakisc, Y., De Roos, A. "Contrast enhanced and functional magnetic resonance imaging for the detection of viable myocardium after infarction", American heart journal, Vol. 135, Issue 5, (875--880)

1997

  • Conference Christopoulos, VA, Pratikakis, IE, Cornelis, J. "A hybrid method for image partitioning in low bit rate segmented image coding", Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on, (845--848)
  • Conference Pratikakis, IE, Sahli, H., Cornelis, J. "Hierarchy determination of the gradient watershed adjacent groups", Scandinavian conference on image analysis, (685--692)
  • Conference Pratikakis, I., Deklerck,R., Salomie,A., Cornelis, J. "Improving precise interactive delineation of 3D structures in medical images", Computer Assisted Radiology (CAR'97), (215-220)

1996

  • Journal Xin, Y., Truyen, B., Pratikakis, I., Cornelis, J. "Hierarchical contour matching in medical images", Image and vision computing, Vol. 14, Issue 6, (417--433)
  • Conference PRATIKAKIS, IE, SAHLI, H., CORNELIS, J. "A cooperative approach for the interpretation of Cranial-MR images using a Statistical Digital Atlas", (425)
  • Conference Pratikakis, I., Sahli,H., Cornelis, J. "Watershed analysis and relaxation labelling: A cooperative approach for the interpretation of cranial - MR images using a statistical digital atlas", Mathematical Morphology and its applications on Image and Signal processing (ISMM'96), (425-432)

1995

  • Conference Truyen, B., Pratikakis, I., Xin, Y., Cornelis, J. "Hierarchical matching of deformable curves in medical images", In Proceedings of the 2nd International Workshop on Image and Signal Processing (IWSIP'95), (284-291)

1994

  • Conference Pratikakis, I., Mertzios, B., Cornelis, J. "Segmentation and counting of ovisacs with morphological filtering in ultrasound images", In Proceedings of the 1st International Workshop on Image and Signal Processing (IWSIP'94), (30--33)