Weighted FMH filters. - Jukka Neejärvi; Alpo Värri; Spiros Fotopoulos; Yrjö Neuvo (Signal Process., 1993)

A Novel Edge Detector Based on Nonlinear Local Operations. - George Economou; Spiros Fotopoulos; M. Vemis (ISCAS, 1994)

Vector Nonlinear Data Depended Filters. - Spiros Fotopoulos; George Economou; Nikolaos A. Laskaris; Dimitris Sindoukas (ISCAS, 1994)

The use of Boolean functions and local operations for edge detection in images. - M. Vemis; George Economou; Spiros Fotopoulos; A. Khodyrev (Signal Process., 1995)

Latency measurement improvement of P100 complex in visual evoked potentials by FMH filters. - Spiros Fotopoulos; George Economou; Anastasios Bezerianos; Nikos Laskaris (IEEE Trans. Biomed. Eng., 1995)

A family of nonlinear filters with data dependent coefficients. - George Economou; Spiros Fotopoulos; M. Vemis (IEEE Trans. Signal Process., 1995)

Fuzzy - weighted averaging for high-resolution ECG based on exploratory data analysis. - Nikolaos A. Laskaris; Spiros Fotopoulos; Anastasios Bezerianos; A. Manolis (EUSIPCO, 1996)

Color image filtering using generalized cost functions. - Dimitris Sindoukas; Spiros Fotopoulos; George Economou (EUSIPCO, 1996)

Image enhancement using color and spatial information. - Spiros Fotopoulos; Dimitris Sindoukas; Nikolaos A. Laskaris; George Economou (ICASSP, 1997)

Algorithms for color image edge enhancement using potential functions. - Dimitris Sindoukas; Nikolaos A. Laskaris; Spiros Fotopoulos (IEEE Signal Process. Lett., 1997)

Fuzzy colour filtering using relative entropy. - A. Fotinos; Nikolaos A. Laskaris; Spiros Fotopoulos (EUSIPCO, 1998)

The use of entropy for colour edge detection. - A. Fotinos; George Economou; Evangelos Zigouris; Spiros Fotopoulos (ICECS, 1999)

Multidimensional Fuzzy Filtering using Statistical Parameters. - A. Fotinos; Nikos Laskaris; George Economou; Spiros Fotopoulos (Multidimens. Syst. Signal Process., 1999)

A histogram based multichannel filter. - A. Fotinos; George Economou; Evangelos Zigouris; Spiros Fotopoulos (EUSIPCO, 2000)

Segmentation of color images using a hierarchical fuzzy region merging technique. - Sokratis Makrogiannis; George Economou; Evangelos Zigouris; Spiros Fotopoulos (EUSIPCO, 2000)

Color image edge detection based on nonparametric density estimation. - George Economou; A. Fotinos; Sokratis Makrogiannis; Spiros Fotopoulos (ICIP (1), 2001)

Region-oriented compression of color images using fuzzy inference and shape adaptive DCT. - Sokratis Makrogiannis; Peter Schelkens; Spiros Fotopoulos; Jan Cornelis 001 (ICIP (3), 2001)

Scale space segmentation of color images using watersheds and fuzzy region merging. - Sokratis Makrogiannis; Iris Vanhamel; Hichem Sahli; Spiros Fotopoulos (ICIP (1), 2001)

A Fuzzy Dissimilarity Function for Region Based Segmentation of Color Images. - Sokratis Makrogiannis; George Economou; Spiros Fotopoulos (Int. J. Pattern Recognit. Artif. Intell., 2001)

A fuzzy region dissimilarity measure using feature space information. - Sokratis Makrogiannis; George Economou; Spiros Fotopoulos (DSP, 2002)

Region oriented compression of color images using fuzzy inference and fast merging. - Sokratis Makrogiannis; George Economou; Spiros Fotopoulos (Pattern Recognit., 2002)

Color image segmentation using multiscale fuzzy C-means and graph theoretic merging. - Sokratis Makrogiannis; Christos Theoharatos; George Economou; Spiros Fotopoulos (ICIP (1), 2003)

A similarity measure for color image retrieval and indexing based on the Multivariate Two Sample Problem. - Christos Theoharatos; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (EUSIPCO, 2004)

Multivariate image segmentation using Laplacian Eigenmaps. - Ioannis Tziakos; Nikolaos A. Laskaris; Spiros Fotopoulos (EUSIPCO, 2004)

A novel training scheme for neural-network-based vector quantizers and its application in image compression. - Nikolaos A. Laskaris; Spiros Fotopoulos (Neurocomputing, 2004)

Mining information from event-related recordings. - Nikolaos A. Laskaris; Spiros Fotopoulos; Andreas A. Ioannides (IEEE Signal Process. Mag., 2004)

Color-based image retrieval using vector quantization and multivariate graph matching. - Christos Theoharatos; George Economou; Spiros Fotopoulos; Nikolaos A. Laskaris (ICIP (1), 2005)

Compressed Domain Image Indexing and Retrieval Based on the Minimal Spanning Tree. - Christos Theoharatos; Vasileios K. Pothos; George Economou; Spiros Fotopoulos (ICME, 2005)

Watershed-based multiscale segmentation method for color images using automated scale selection. - Sokratis Makrogiannis; Iris Vanhamel; Spiros Fotopoulos; Hichem Sahli; Jan Cornelis 001 (J. Electronic Imaging, 2005)

Color edge detection using the minimal spanning tree. - Christos Theoharatos; George Economou; Spiros Fotopoulos (Pattern Recognit., 2005)

A Generic Scheme for Color Image Retrieval Based on the Multivariate Wald-Wolfowitz Test. - Christos Theoharatos; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (IEEE Trans. Knowl. Data Eng., 2005)

A region dissimilarity relation that combines feature-space and spatial information for color image segmentation. - Sokratis Makrogiannis; George Economou; Spiros Fotopoulos (IEEE Trans. Syst. Man Cybern. Part B, 2005)

Segmentation of color images using multiscale clustering and graph theoretic region synthesis. - Sokratis Makrogiannis; George Economou; Spiros Fotopoulos; Nikolaos G. Bourbakis (IEEE Trans. Syst. Man Cybern. Part A, 2005)

Points of interest extraction using pairwise clustering and spatial features. - Dimitrios Besiris; Nikolaos A. Laskaris; Evangelos Zigouris; George Economou; Spiros Fotopoulos (EUSIPCO, 2006)

Combining self-organizing neural nets with multivariate statistics for efficient color image retrieval. - Christos Theoharatos; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (Comput. Vis. Image Underst., 2006)

Multivariate image similarity in the compressed domain using statistical graph matching. - Christos Theoharatos; Vasileios K. Pothos; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (Pattern Recognit., 2006)

An application study of manifold learning-ranking techniques in face recognition. - Athanassios Zagouras; George Economou; Andrew Macedonas; Spiros Fotopoulos (MMSP, 2007)

Improvement of Image Retrieval by Fusing Different Descriptors. - Andrew Macedonas; Spiros Fotopoulos; George Economou (WIAMIS, 2007)

Semantic Mapping of Image Databases using Perceptual Similarity. - Christos Theoharatos; George Economou; Spiros Fotopoulos (WIAMIS, 2007)

On the Perceptual Organization of Image Databases Using Cognitive Discriminative Biplots. - Christos Theoharatos; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (EURASIP J. Adv. Signal Process., 2007)

Dictionary based color image retrieval. - Andrew Makedonas; Dimitrios Besiris; George Economou; Spiros Fotopoulos (J. Vis. Commun. Image Represent., 2008)

A machine vision based method for atmospheric circulation classification. - Athanassios Zagouras; Athanassios A. Argiriou; Helena A. Flocas; George Economou; Spiros Fotopoulos (DPS, 2009)

Combining graph connectivity & dominant set clustering for video summarization. - Dimitrios Besiris; Andrew Makedonas; George Economou; Spiros Fotopoulos (Multim. Tools Appl., 2009)

Face recognition via local sparse coding. - Ilias Theodorakopoulos; Ioannis Rigas; George Economou; Spiros Fotopoulos (ICCV, 2011)

HEp-2 Cells classification via fusion of morphological and textural features. - Ilias Theodorakopoulos; Dimitris Kastaniotis; George Economou; Spiros Fotopoulos (BIBE, 2012)

Human eye movements as a trait for biometrical identification. - Ioannis Rigas; George Economou; Spiros Fotopoulos (BTAS, 2012)

Affective gaming: Beyond using sensors. - Irene Kotsia; Ioannis Patras; Spiros Fotopoulos (ISCCSP, 2012)

Biometric identification based on the eye movements and graph matching techniques. - Ioannis Rigas; George Economou; Spiros Fotopoulos (Pattern Recognit. Lett., 2012)

HEp-2 cells classification using locally aggregated features mapped in the dissimilarity space. - Dimitris Kastaniotis; Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (BIBE, 2013)

Affective Gaming: A Comprehensive Survey. - Irene Kotsia; Stefanos Zafeiriou; Spiros Fotopoulos (CVPR Workshops, 2013)

Gait-based gender recognition using pose information for real time applications. - Dimitris Kastaniotis; Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (DSP, 2013)

Unsupervised music segmentation via multi-scale processing of compressive features' representation. - Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (DSP, 2013)

Classification of Dissimilarity Data via Sparse Representation. - Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (ICPRAM, 2013)

On-line signature recognition via fusion of dynamic features into dissimilarity space. - Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos; Apostolos Ifantis (ISSPIT, 2013)

Collaborative Sparse Representation in Dissimilarity Space for Classification of Visual Information. - Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (ISVC (1), 2013)

KAD - An Intelligent System for Categorizing and Assessing the State of Patients with Multiple Sclerosis. - Spiros Fotopoulos; Dimitris Kastaniotis (ERCIM News, 2013)

Online signature verification based on signatures turning angle representation using longest common subsequence matching. - Konstantina Barkoula; George Economou; Spiros Fotopoulos (Int. J. Document Anal. Recognit., 2013)

Low-Level Visual Saliency With Application on Aerial Imagery. - Ioannis Rigas; George Economou; Spiros Fotopoulos (IEEE Geosci. Remote. Sens. Lett., 2013)

Advanced leaf image retrieval via Multidimensional Embedding Sequence Similarity (MESS) method. - Fotini Fotopoulou; Nikolaos A. Laskaris; George Economou; Spiros Fotopoulos (Pattern Anal. Appl., 2013)

Poset Description of Grid Features and Application to Off-Line Signature Verification. - Elias N. Zois; Evangelos Zervas; Konstantina Barkoula; George Economou; Spiros Fotopoulos (ICFHR, 2014)

HEp-2 Cells Classification Using Morphological Features and a Bundle of Local Gradient Descriptors. - Ilias Theodorakopoulos; Dimitris Kastaniotis; George Economou; Spiros Fotopoulos (I3A@ICPR, 2014)

Using kinect for assesing the state of Multiple Sclerosis patients. - Dimitris Kastaniotis; George Economou; Spiros Fotopoulos; Gerasimos Kartsakalis; Panagiotis Papathanasopoulos (MobiHealth, 2014)

HEp-2 Cell Classification Using Descriptors Fused into the Dissimilarity Space into the Dissimilarity Space. - Ilias Theodorakopoulos; Dimitris Kastaniotis; George Economou; Spiros Fotopoulos (Int. J. Artif. Intell. Tools, 2014)

Pose-based human action recognition via sparse representation in dissimilarity space. - Ilias Theodorakopoulos; Dimitris Kastaniotis; George Economou; Spiros Fotopoulos (J. Vis. Commun. Image Represent., 2014)

HEp-2 cells classification via sparse representation of textural features fused into dissimilarity space. - Ilias Theodorakopoulos; Dimitris Kastaniotis; George Economou; Spiros Fotopoulos (Pattern Recognit., 2014)

Efficient modeling of visual saliency based on local sparse representation and the use of hamming distance. - Ioannis Rigas; George Economou; Spiros Fotopoulos (Comput. Vis. Image Underst., 2015)

A framework for gait-based recognition using Kinect. - Dimitris Kastaniotis; Ilias Theodorakopoulos; Christos Theoharatos; George Economou; Spiros Fotopoulos (Pattern Recognit. Lett., 2015)

Classifying children with reading difficulties from non-impaired readers via symbolic dynamics and complexity analysis of MEG resting-state data. - Stavros I. Dimitriadis; Panagiotis G. Simos; Nikolaos A. Laskaris; Spiros Fotopoulos; Jack M. Fletcher; David E. J. Linden; Andrew C. Papanicolaou (ISSPIT, 2016)

Pose-based gait recognition with local gradient descriptors and hierarchically aggregated residuals. - Dimitris Kastaniotis; Ilias Theodorakopoulos; Spiros Fotopoulos (J. Electronic Imaging, 2016)

Local manifold distance based on neighborhood graph reordering. - Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos; Christos Theoharatos (Pattern Recognit., 2016)

Gait based recognition via fusing information from Euclidean and Riemannian manifolds. - Dimitris Kastaniotis; Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (Pattern Recognit. Lett., 2016)

3D Shape Classification Using Collaborative Representation based Projections. - Fotini Fotopoulou; Spiros Oikonomou; A. Papathanasiou; George Economou; Spiros Fotopoulos (CoRR, 2017)

HEp-2 cell classification with Vector of Hierarchically Aggregated Residuals. - Dimitris Kastaniotis; Fotini Fotopoulou; Ilias Theodorakopoulos; George Economou; Spiros Fotopoulos (Pattern Recognit., 2017)

USBlock: Blocking USB-Based Keypress Injection Attacks. - Sebastian Neuner; Artemios G. Voyiatzis; Spiros Fotopoulos; Collin Mulliner; Edgar R. Weippl (DBSec, 2018)

Attention-Aware Generative Adversarial Networks (ATA-GANs). - Dimitris Kastaniotis; Ioanna Ntinou; Dimitrios Tsourounis; George Economou; Spiros Fotopoulos (IVMSP, 2018)

Muscle Type Classification on Ultrasound Imaging Using Deep Convolutional Neural Networks. - Sofoklis Katakis; Nikolaos Barotsis; Dimitrios Kastaniotis; Christos Theoharatos; Dimitrios Tsourounis; Spiros Fotopoulos; Elias Panagiotopoulos (IVMSP, 2018)

Lip Reading in Greek words at unconstrained driving scenario. - Dimitris Kastaniotis; Dimitrios Tsourounis; Aristotelis Koureleas; Bojidar Peev; Christos Theoharatos; Spiros Fotopoulos (IISA, 2019)

Lip Reading modeling with Temporal Convolutional Networks for medical support applications. - Dimitris Kastaniotis; Dimitrios Tsourounis; Spiros Fotopoulos (CISP-BMEI, 2020)

Lip Reading by Alternating between Spatiotemporal and Spatial Convolutions. - Dimitrios Tsourounis; Dimitris Kastaniotis; Spiros Fotopoulos (J. Imaging, 2021)