George Economou

104 papers A* 3A 1B 3C 9Misc 2Journal 50Unranked 36

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A feature-based knowledge distillation (FKD) for offline signature feature learning without signatures. Expert Syst. Appl. Dimitrios Tsourounis, Ilias Theodorakopoulos, Elias N. Zois, George Economou
2023	J	`jnl`	Leveraging Expert Models for Training Deep Neural Networks in Scarce Data Domains: Application to Offline Handwritten Signature Verification. CoRR Dimitrios Tsourounis, Ilias Theodorakopoulos, Elias N. Zois, George Economou
2022	J	`jnl`	Automatic Extraction of Muscle Parameters with Attention UNet in Ultrasonography. Sensors Sofoklis Katakis, Nikolaos Barotsis, Alexandros Kakotaritis, George Economou, Elias Panagiotopoulos, George Panayiotakis
2022	J	`jnl`	From text to signatures: Knowledge transfer for efficient deep feature learning in offline signature verification. Expert Syst. Appl. Dimitrios Tsourounis, Ilias Theodorakopoulos, Elias N. Zois, George Economou
2022	J	`jnl`	SIFT-CNN: When Convolutional Neural Networks Meet Dense SIFT Descriptors for Image and Sequence Classification. J. Imaging Dimitrios Tsourounis, Dimitris Kastaniotis, Christos Theoharatos, Andreas Kazantzidis, George Economou
2021	J	`jnl`	Geometric Regularization of Local Activations for Knowledge Transfer in Convolutional Neural Networks. Inf. Ilias Theodorakopoulos, Foteini Fotopoulou, George Economou
2021	—	`conf`	Semantic Information in Gating Patterns of Dynamic Convolutional Neural Networks. IISA Ilias Theodorakopoulos, George Economou
2020	J	`jnl`	3D shape clustering with Nonnegative Least Squares coding and fusion on multilayer graphs. Multim. Tools Appl. Foteini Fotopoulou, George Economou
2020	—	`conf`	Local Manifold Regularization for Knowledge Transfer in Convolutional Neural Networks. IISA Ilias Theodorakopoulos, Foteini Fotopoulou, George Economou
2020	A*	`conf`	Sequential Motif Profiles and Topological Plots for Offline Signature Verification. CVPR Elias N. Zois, Evangelos Zervas, Dimitrios Tsourounis, George Economou
2019	J	`jnl`	3D shape classification with NNLS coding and optimal projections technique. Multim. Tools Appl. Fotini Fotopoulou, Spiros Oikonomou, George Economou
2019	J	`jnl`	A Comprehensive Study of Sparse Representation Techniques for Offline Signature Verification. IEEE Trans. Biom. Behav. Identity Sci. Elias N. Zois, Dimitrios Tsourounis, Ilias Theodorakopoulos, Anastasios L. Kesidis, George Economou
2019	—	`conf`	Sky Image forecasting with Generative Adversarial Networks for cloud coverage prediction. IISA George Andrianakos, Dimitrios Tsourounis, Spiros Oikonomou, Dimitris Kastaniotis, George Economou, Andreas Kazantzidis
2019	J	`jnl`	Writer independent offline signature verification based on asymmetric pixel relations and unrelated training-testing datasets. Expert Syst. Appl. Elias N. Zois, Alex Alexandridis, George Economou
2018	J	`jnl`	A comprehensive study of sparse representation techniques for offline signature verification. CoRR Elias N. Zois, Dimitrios Tsourounis, Ilias Theodorakopoulos, Anastasios L. Kesidis, George Economou
2018	—	`conf`	Attention-Aware Generative Adversarial Networks (ATA-GANs). IVMSP Dimitris Kastaniotis, Ioanna Ntinou, Dimitrios Tsourounis, George Economou, Spiros Fotopoulos
2018	J	`jnl`	Attention-Aware Generative Adversarial Networks (ATA-GANs). CoRR Dimitris Kastaniotis, Ioanna Ntinou, Dimitrios Tsourounis, George Economou, Spiros Fotopoulos
2018	—	`conf`	Hierarchical Dictionary Learning and Sparse Coding for Static Signature Verification. CVPR Workshops Elias N. Zois, Marianna Papagiannopoulou, Dimitrios Tsourounis, George Economou
2018	J	`jnl`	On the definition of shape parts: a dominant sets approach. Pattern Anal. Appl. Fotini Fotopoulou, George Economou
2017	J	`jnl`	3D Shape Classification Using Collaborative Representation based Projections. CoRR Fotini Fotopoulou, Spiros Oikonomou, A. Papathanasiou, George Economou, Spiros Fotopoulos
2017	J	`jnl`	HEp-2 cell classification with Vector of Hierarchically Aggregated Residuals. Pattern Recognit. Dimitris Kastaniotis, Fotini Fotopoulou, Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2017	J	`jnl`	Long range correlation of preceded pixels relations and application to off-line signature verification. IET Biom. Hans Loka, Elias N. Zois, George Economou
2017	A*	`conf`	Offline Handwritten Signature Modeling and Verification Based on Archetypal Analysis. ICCV Elias N. Zois, Ilias Theodorakopoulos, George Economou
2017	J	`jnl`	On the definition of Shape Parts: a Dominant Sets Approach. CoRR Fotini Fotopoulou, George Economou
2017	—	`conf`	Parsimonious Coding and Verification of Offline Handwritten Signatures. CVPR Workshops Elias N. Zois, Ilias Theodorakopoulos, Dimitrios Tsourounis, George Economou
2016	J	`jnl`	Gait based recognition via fusing information from Euclidean and Riemannian manifolds. Pattern Recognit. Lett. Dimitris Kastaniotis, Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2016	J	`jnl`	Local manifold distance based on neighborhood graph reordering. Pattern Recognit. Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos, Christos Theoharatos
2016	J	`jnl`	Offline signature verification and quality characterization using poset-oriented grid features. Pattern Recognit. Elias N. Zois, Linda Alewijnse, George Economou
2015	J	`jnl`	A framework for gait-based recognition using Kinect. Pattern Recognit. Lett. Dimitris Kastaniotis, Ilias Theodorakopoulos, Christos Theoharatos, George Economou, Spiros Fotopoulos
2015	J	`jnl`	Efficient modeling of visual saliency based on local sparse representation and the use of hamming distance. Comput. Vis. Image Underst. Ioannis Rigas, George Economou, Spiros Fotopoulos
2014	B	`conf`	Graph Based Re-ranking Method with Application to Handwritten Digits. ICFHR Fotini Fotopoulou, George Economou
2014	J	`jnl`	HEp-2 Cell Classification Using Descriptors Fused into the Dissimilarity Space into the Dissimilarity Space. Int. J. Artif. Intell. Tools Ilias Theodorakopoulos, Dimitris Kastaniotis, George Economou, Spiros Fotopoulos
2014	—	`conf`	HEp-2 Cells Classification Using Morphological Features and a Bundle of Local Gradient Descriptors. I3A@ICPR Ilias Theodorakopoulos, Dimitris Kastaniotis, George Economou, Spiros Fotopoulos
2014	J	`jnl`	HEp-2 cells classification via sparse representation of textural features fused into dissimilarity space. Pattern Recognit. Ilias Theodorakopoulos, Dimitris Kastaniotis, George Economou, Spiros Fotopoulos
2014	J	`jnl`	Pose-based human action recognition via sparse representation in dissimilarity space. J. Vis. Commun. Image Represent. Ilias Theodorakopoulos, Dimitris Kastaniotis, George Economou, Spiros Fotopoulos
2014	B	`conf`	Poset Description of Grid Features and Application to Off-Line Signature Verification. ICFHR Elias N. Zois, Evangelos Zervas, Konstantina Barkoula, George Economou, Spiros Fotopoulos
2014	—	`conf`	Using kinect for assesing the state of Multiple Sclerosis patients. MobiHealth Dimitris Kastaniotis, George Economou, Spiros Fotopoulos, Gerasimos Kartsakalis, Panagiotis Papathanasopoulos
2013	J	`jnl`	Advanced leaf image retrieval via Multidimensional Embedding Sequence Similarity (MESS) method. Pattern Anal. Appl. Fotini Fotopoulou, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2013	C	`conf`	Classification of Dissimilarity Data via Sparse Representation. ICPRAM Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2013	—	`conf`	Collaborative Sparse Representation in Dissimilarity Space for Classification of Visual Information. ISVC (1) Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2013	—	`conf`	Event Based Offline Signature Modeling Using Grid Source Probabilistic Coding. ICIAP Workshops Konstantina Barkoula, Elias N. Zois, Evangelos Zervas, George Economou
2013	—	`conf`	Gait-based gender recognition using pose information for real time applications. DSP Dimitris Kastaniotis, Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2013	C	`conf`	HEp-2 cells classification using locally aggregated features mapped in the dissimilarity space. BIBE Dimitris Kastaniotis, Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2013	C	`conf`	Local focus-tolerant image descriptors for classification of biological particles. BIBE Nefeli Vassiliki Politi-Stergiou, Ilias Theodorakopoulos, George Economou
2013	J	`jnl`	Low-Level Visual Saliency With Application on Aerial Imagery. IEEE Geosci. Remote. Sens. Lett. Ioannis Rigas, George Economou, Spiros Fotopoulos
2013	—	`conf`	Off-Line Signature Verification based on Ordered Grid Features: An Evaluation. AFHA Konstantina Barkoula, Elias N. Zois, Evangelos Zervas, George Economou
2013	—	`conf`	On-line signature recognition via fusion of dynamic features into dissimilarity space. ISSPIT Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos, Apostolos Ifantis
2013	J	`jnl`	Online signature verification based on signatures turning angle representation using longest common subsequence matching. Int. J. Document Anal. Recognit. Konstantina Barkoula, George Economou, Spiros Fotopoulos
2013	C	`conf`	Shape Representation via the Generalized Geodesic Median Point. ICPRAM Fotini Fotopoulou, Dimitris Kastaniotis, Ilias Theodorakopoulos, George Economou
2013	—	`conf`	Unsupervised music segmentation via multi-scale processing of compressive features' representation. DSP Ilias Theodorakopoulos, George Economou, Spiros Fotopoulos
2012	—	`conf`	A Semi-Analytical Macroscopic MAC Layer Model for LTE Uplink. NTMS Spiros Louvros, Athanasios C. Iossifides, Konstantinos Aggelis, Agamemnon Baltagiannis, George Economou
2012	J	`jnl`	A local spectral distribution approach to face recognition. Comput. Vis. Image Underst. Vasileios K. Pothos, Christos Theoharatos, George Economou
2012	J	`jnl`	Analyzing Functional Brain Connectivity by Means of Commute Times: A New Approach and its Application to Track Event-Related Dynamics. IEEE Trans. Biomed. Eng. Stavros I. Dimitriadis, Nikolaos A. Laskaris, Areti Tzelepi, George Economou
2012	J	`jnl`	Biometric identification based on the eye movements and graph matching techniques. Pattern Recognit. Lett. Ioannis Rigas, George Economou, Spiros Fotopoulos
2012	J	`jnl`	Grid-based feature distributions for off-line signature verification. IET Biom. Konstantinos Tselios, Elias N. Zois, Elias Siores, Athanasios Nassiopoulos, George Economou
2012	C	`conf`	HEp-2 Cells classification via fusion of morphological and textural features. BIBE Ilias Theodorakopoulos, Dimitris Kastaniotis, George Economou, Spiros Fotopoulos
2012	—	`conf`	Human eye movements as a trait for biometrical identification. BTAS Ioannis Rigas, George Economou, Spiros Fotopoulos
2011	—	`conf`	Automated Off-Line Writer Verification Using Short Sentences and Grid Features. AFHA Konstantinos Tselios, Elias N. Zois, Athanasios Nassiopoulos, Sotiris Karabetsos, George Economou
2011	A*	`conf`	Face recognition via local sparse coding. ICCV Ilias Theodorakopoulos, Ioannis Rigas, George Economou, Spiros Fotopoulos
2011	—	`conf`	Fusion in phase space for shape retrieval. EUSIPCO Fotini Fotopoulou, Ilias Theodorakopoulos, George Economou
2011	B	`conf`	Fusion of directional transitional features for off-line signature verification. IJCB Konstantinos Tselios, Elias N. Zois, Athanasios Nassiopoulos, George Economou
2011	Misc	`conf`	Off-Line Signature Verification Using Two Step Transitional Features. MVA Elias N. Zois, Athanasios Nassiopoulos, Konstantinos Tselios, Elias Siores, George Economou
2009	—	`conf`	A machine vision based method for atmospheric circulation classification. DPS Athanassios Zagouras, Athanassios A. Argiriou, Helena A. Flocas, George Economou, Spiros Fotopoulos
2009	—	`conf`	A spectral distribution approach to fingerprint verification. DPS Vasileios K. Pothos, Christos Theoharatos, Apostolos Ifantis, George Economou
2009	J	`jnl`	Color image segmentation using Laplacian eigenmaps. J. Electronic Imaging Ioannis Tziakos, Christos Theoharatos, Nikolaos A. Laskaris, George Economou
2009	J	`jnl`	Combining graph connectivity & dominant set clustering for video summarization. Multim. Tools Appl. Dimitrios Besiris, Andrew Makedonas, George Economou, Spiros Fotopoulos
2008	J	`jnl`	Charting of geoelectric potential signal dynamics via geometrical techniques and its possible relation to significant earthquakes in Western Greece. Comput. Geosci. Christos Theoharatos, Apostolos Ifantis, Nikolaos A. Laskaris, George Economou
2008	J	`jnl`	Dictionary based color image retrieval. J. Vis. Commun. Image Represent. Andrew Makedonas, Dimitrios Besiris, George Economou, Spiros Fotopoulos
2008	J	`jnl`	Distributional-based texture classification using non-parametric statistics. Pattern Anal. Appl. Vasileios K. Pothos, Christos Theoharatos, Evangelos Zygouris, George Economou
2007	C	`conf`	An application study of manifold learning-ranking techniques in face recognition. MMSP Athanassios Zagouras, George Economou, Andrew Macedonas, Spiros Fotopoulos
2007	—	`conf`	Improvement of Image Retrieval by Fusing Different Descriptors. WIAMIS Andrew Macedonas, Spiros Fotopoulos, George Economou
2007	C	`conf`	Key frame extraction in video sequences: a vantage points approach. MMSP Dimitrios Besiris, Nikolaos A. Laskaris, Fotini Fotopoulou, George Economou
2007	J	`jnl`	On the Perceptual Organization of Image Databases Using Cognitive Discriminative Biplots. EURASIP J. Adv. Signal Process. Christos Theoharatos, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2007	—	`conf`	Robust Face Recognition and Retrieval Using Neural-Network-Based Quantization of Gabor Jets and Statistical Graph Matching. ICTAI (1) Vasileios K. Pothos, Christos Theoharatos, George Economou
2007	—	`conf`	Semantic Mapping of Image Databases using Perceptual Similarity. WIAMIS Christos Theoharatos, George Economou, Spiros Fotopoulos
2007	—	`conf`	Texture retrieval based on a non-parametric measure for multivariate distributions. CIVR Vasileios K. Pothos, Christos Theoharatos, George Economou, Apostolos Ifantis
2006	J	`jnl`	Combining self-organizing neural nets with multivariate statistics for efficient color image retrieval. Comput. Vis. Image Underst. Christos Theoharatos, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2006	J	`jnl`	Multivariate image similarity in the compressed domain using statistical graph matching. Pattern Recognit. Christos Theoharatos, Vasileios K. Pothos, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2006	—	`conf`	Points of interest extraction using pairwise clustering and spatial features. EUSIPCO Dimitrios Besiris, Nikolaos A. Laskaris, Evangelos Zigouris, George Economou, Spiros Fotopoulos
2005	J	`jnl`	A Generic Scheme for Color Image Retrieval Based on the Multivariate Wald-Wolfowitz Test. IEEE Trans. Knowl. Data Eng. Christos Theoharatos, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2005	J	`jnl`	A region dissimilarity relation that combines feature-space and spatial information for color image segmentation. IEEE Trans. Syst. Man Cybern. Part B Sokratis Makrogiannis, George Economou, Spiros Fotopoulos
2005	J	`jnl`	Color edge detection using the minimal spanning tree. Pattern Recognit. Christos Theoharatos, George Economou, Spiros Fotopoulos
2005	—	`conf`	Color-based image retrieval using vector quantization and multivariate graph matching. ICIP (1) Christos Theoharatos, George Economou, Spiros Fotopoulos, Nikolaos A. Laskaris
2005	A	`conf`	Compressed Domain Image Indexing and Retrieval Based on the Minimal Spanning Tree. ICME Christos Theoharatos, Vasileios K. Pothos, George Economou, Spiros Fotopoulos
2005	J	`jnl`	Segmentation of color images using multiscale clustering and graph theoretic region synthesis. IEEE Trans. Syst. Man Cybern. Part A Sokratis Makrogiannis, George Economou, Spiros Fotopoulos, Nikolaos G. Bourbakis
2004	—	`conf`	A similarity measure for color image retrieval and indexing based on the Multivariate Two Sample Problem. EUSIPCO Christos Theoharatos, Nikolaos A. Laskaris, George Economou, Spiros Fotopoulos
2004	—	`conf`	Geodesic distance and MST based image segmentation. EUSIPCO George Economou, Vasileios K. Pothos, Apostolos Ifantis
2003	—	`conf`	Color image segmentation using multiscale fuzzy C-means and graph theoretic merging. ICIP (1) Sokratis Makrogiannis, Christos Theoharatos, George Economou, Spiros Fotopoulos
2002	—	`conf`	A fuzzy region dissimilarity measure using feature space information. DSP Sokratis Makrogiannis, George Economou, Spiros Fotopoulos
2002	J	`jnl`	Region oriented compression of color images using fuzzy inference and fast merging. Pattern Recognit. Sokratis Makrogiannis, George Economou, Spiros Fotopoulos
2001	J	`jnl`	A Fuzzy Dissimilarity Function for Region Based Segmentation of Color Images. Int. J. Pattern Recognit. Artif. Intell. Sokratis Makrogiannis, George Economou, Spiros Fotopoulos
2001	—	`conf`	Color image edge detection based on nonparametric density estimation. ICIP (1) George Economou, A. Fotinos, Sokratis Makrogiannis, Spiros Fotopoulos
2000	—	`conf`	A histogram based multichannel filter. EUSIPCO A. Fotinos, George Economou, Evangelos Zigouris, Spiros Fotopoulos
2000	—	`conf`	Segmentation of color images using a hierarchical fuzzy region merging technique. EUSIPCO Sokratis Makrogiannis, George Economou, Evangelos Zigouris, Spiros Fotopoulos
1999	J	`jnl`	Multidimensional Fuzzy Filtering using Statistical Parameters. Multidimens. Syst. Signal Process. A. Fotinos, Nikos Laskaris, George Economou, Spiros Fotopoulos
1999	—	`conf`	The use of entropy for colour edge detection. ICECS A. Fotinos, George Economou, Evangelos Zigouris, Spiros Fotopoulos
1997	Misc	`conf`	Image enhancement using color and spatial information. ICASSP Spiros Fotopoulos, Dimitris Sindoukas, Nikolaos A. Laskaris, George Economou
1996	—	`conf`	Color image filtering using generalized cost functions. EUSIPCO Dimitris Sindoukas, Spiros Fotopoulos, George Economou
1996	—	`conf`	Multichannel distance filtering of seismic electric signals. EUSIPCO George Economou, Apostolos Ifantis, Dimitris Sindoukas
1995	J	`jnl`	A family of nonlinear filters with data dependent coefficients. IEEE Trans. Signal Process. George Economou, Spiros Fotopoulos, M. Vemis
1995	J	`jnl`	Latency measurement improvement of P100 complex in visual evoked potentials by FMH filters. IEEE Trans. Biomed. Eng. Spiros Fotopoulos, George Economou, Anastasios Bezerianos, Nikos Laskaris
1995	J	`jnl`	The use of Boolean functions and local operations for edge detection in images. Signal Process. M. Vemis, George Economou, Spiros Fotopoulos, A. Khodyrev
1994	C	`conf`	A Novel Edge Detector Based on Nonlinear Local Operations. ISCAS George Economou, Spiros Fotopoulos, M. Vemis
1994	C	`conf`	Vector Nonlinear Data Depended Filters. ISCAS Spiros Fotopoulos, George Economou, Nikolaos A. Laskaris, Dimitris Sindoukas