Giorgos Sfikas

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 52

Top Topics

Handwritten Text

Fourier Transform

Top Venues

Publications

George Retsinas, Giorgos Sfikas, Basilis Gatos, Christophoros Nikou
Best Practices for a Handwritten Text Recognition System. CoRR (2024)
Andreas El Saer, Lazaros Grammatikopoulos, Giorgos Sfikas, George Karras, Elli Petsa
A Novel Framework for Image Matching and Stitching for Moving Car Inspection under Illumination Challenges. Sensors 24 (4) (2024)
Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou
Implicit Neural Representation Inference for Low-Dimensional Bayesian Deep Learning. ICLR (2024)
George Retsinas, Giorgos Sfikas, Panagiotis Paraskevas Filntisis, Petros Maragos
Newton-Based Trainable Learning Rate. ICASSP (2023)
George Retsinas, Giorgos Sfikas, Christophoros Nikou
Keyword Spotting Simplified: A Segmentation-Free Approach using Character Counting and CTC re-scoring. CoRR (2023)
Giorgos Sfikas, George Retsinas, Basilis Gatos
Document Binarization with Quaternionic Double Discriminator Generative Adversarial Network. ICDAR Workshops (2) (2023)
Giorgos Sfikas, George Retsinas
On the Matrix Form of the Quaternion Fourier Transform and Quaternion Convolution. CoRR (2023)
Giorgos Sfikas, George Retsinas, Panagiotis Dimitrakopoulos, Basilis Gatos, Christophoros Nikou
Shared-Operation Hypercomplex Networks for Handwritten Text Recognition. ICDAR (4) (2023)
Konstantina Nikolaidou, George Retsinas, Vincent Christlein, Mathias Seuret, Giorgos Sfikas, Elisa Barney Smith, Hamam Mokayed, Marcus Liwicki
WordStylist: Styled Verbatim Handwritten Text Generation with Latent Diffusion Models. ICDAR (2) (2023)
George Retsinas, Giorgos Sfikas, Christophoros Nikou
Keyword Spotting Simplified: A Segmentation-Free Approach Using Character Counting and CTC Re-scoring. ICDAR (1) (2023)
Konstantina Nikolaidou, George Retsinas, Vincent Christlein, Mathias Seuret, Giorgos Sfikas, Elisa Barney Smith, Hamam Mokayed, Marcus Liwicki
WordStylist: Styled Verbatim Handwritten Text Generation with Latent Diffusion Models. CoRR (2023)
Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou
Variational Feature Pyramid Networks. ICML (2022)
George Retsinas, Giorgos Sfikas, Basilis Gatos, Christophoros Nikou
Best Practices for a Handwritten Text Recognition System. DAS (2022)
Aggelos Katsaliros, Iason-Ioannis Panagos, Giorgos Sfikas, Christophoros Nikou
Road Crack Detection Using Quaternion Neural Networks. IVMSP (2022)
George Retsinas, Giorgos Sfikas, Basilis Gatos, Christophoros Nikou
On-the-Fly Deformations for Keyword Spotting. DAS (2022)
Giorgos Sfikas, George Retsinas, Angelos P. Giotis, Basilis Gatos, Christophoros Nikou
Keyword Spotting with Quaternionic ResNet: Application to Spotting in Greek Manuscripts. DAS (2022)
Iason-Ioannis Panagos, Giorgos Sfikas, Christophoros Nikou
Compressing Audio Visual Speech Recognition Models With Parameterized Hypercomplex Layers. SETN (2022)
Angelos P. Giotis, Giorgos Sfikas, Christophoros Nikou
Adversarial deep features for weakly supervised document image keyword spotting. IVMSP (2022)
Giorgos Sfikas, George Retsinas, Basilis Gatos, Christophoros Nikou
Hypercomplex Generative Adversarial Networks for Lightweight Semantic Labeling. ICPRAI (1) (2022)
George Retsinas, Giorgos Sfikas, Christophoros Nikou
Iterative Weighted Transductive Learning for Handwriting Recognition. ICDAR (4) (2021)
George Retsinas, Giorgos Sfikas, Christophoros Nikou, Petros Maragos
From Seq2Seq Recognition to Handwritten Word Embeddings. BMVC (2021)
George Retsinas, Giorgos Sfikas, Christophoros Nikou, Petros Maragos
Deformation-Invariant Networks For Handwritten Text Recognition. ICIP (2021)
Giorgos Sfikas, Dimosthenis Ioannidis, Dimitrios Tzovaras
Quaternion Harris For Multispectral Keypoint Detection. ICIP (2020)
Giorgos Sfikas, Dimosthenis Ioannidis, Dimitrios Tzovaras
Quaternionic keypoint description for multispectral imaging. SETN (2020)
Giorgos Sfikas, Angelos P. Giotis, George Retsinas, Christophoros Nikou
Quaternion Generative Adversarial Networks for Inscription Detection in Byzantine Monuments. ICPR Workshops (7) (2020)
Giorgos Tsigkas, Giorgos Sfikas, Anastasios Pasialis, Andreas Vlachopoulos, Christophoros Nikou
Markerless detection of ancient rock carvings in the wild: rock art in Vathy, Astypalaia. Pattern Recognit. Lett. 135 (2020)
Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou
ISING-GAN: Annotated Data Augmentation with a Spatially Constrained Generative Adversarial Network. ISBI (2020)
Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou
Wind: Wasserstein Inception Distance For Evaluating Generative Adversarial Network Performance. ICASSP (2020)
George Retsinas, Giorgos Sfikas, Petros Maragos
WSRNet: Joint Spotting and Recognition of Handwritten Words. CoRR (2020)
Victor Megir, Giorgos Sfikas, Athanasios Mekras, Christophoros Nikou, Dimosthenis Ioannidis, Dimitrios Tzovaras
Salient Object Detection with Pretrained Deeplab and k-Means: Application to UAV-Captured Building Imagery. ICPR Workshops (7) (2020)
Panagiotis Kouzouglidis, Giorgos Sfikas, Christophoros Nikou
Automatic Video Colorization Using 3D Conditional Generative Adversarial Networks. ISVC (1) (2019)
Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou
Nuclei Detection Using Residual Attention Feature Pyramid Networks. BIBE (2019)
Panagiotis Kouzouglidis, Giorgos Sfikas, Christophoros Nikou
Automatic Video Colorization using 3D Conditional Generative Adversarial Networks. CoRR (2019)
Günter Mühlberger, Louise Seaward, Melissa Terras, Sofia Ares Oliveira, Vicente Bosch, Maximilian Bryan, Sebastian Colutto, Hervé Déjean, Markus Diem, Stefan Fiel, Basilis Gatos, Albert Greinoecker, Tobias Grüning, Günter Hackl, Vili Haukkovaara, Gerhard Heyer, Lauri Hirvonen, Tobias Hodel, Matti Jokinen, Philip Kahle, Mario Kallio, Frédéric Kaplan, Florian Kleber, Roger Labahn, Eva Maria Lang, Sören Laube, Gundram Leifert, Georgios Louloudis, Rory McNicholl, Jean-Luc Meunier, Johannes Michael, Elena Mühlbauer, Nathanael Philipp, Ioannis Pratikakis, Joan Puigcerver Pérez, Hannelore Putz, George Retsinas, Verónica Romero, Robert Sablatnig, Joan-Andreu Sánchez, Philip Schofield, Giorgos Sfikas, Christian Sieber, Nikolaos Stamatopoulos, Tobias Strauß, Tamara Terbul, Alejandro H. Toselli, Berthold Ulreich, Mauricio Villegas, Enrique Vidal, Johanna Walcher, Max Weidemann, Herbert Wurster, Konstantinos Zagoris
Transforming scholarship in the archives through handwritten text recognition. J. Documentation 75 (5) (2019)
George Retsinas, Georgios Louloudis, Nikolaos Stamatopoulos, Giorgos Sfikas, Basilis Gatos
An Alternative Deep Feature Approach to Line Level Keyword Spotting. CVPR (2019)
George Retsinas, Giorgos Sfikas, Nikolaos Stamatopoulos, Georgios Louloudis, Basilis Gatos
Exploring Critical Aspects of CNN-based Keyword Spotting. A PHOCNet Study. DAS (2018)
Marina E. Plissiti, Panagiotis Dimitrakopoulos, Giorgos Sfikas, Christophoros Nikou, O. Krikoni, Antonia Charchanti
Sipakmed: A New Dataset for Feature and Image Based Classification of Normal and Pathological Cervical Cells in Pap Smear Images. ICIP (2018)
Katerina Papadimitriou, Giorgos Sfikas, Christophoros Nikou
Tomographic Image Reconstruction with a Spatially Varying Gamma Mixture Prior. J. Math. Imaging Vis. 60 (8) (2018)
George Retsinas, Giorgos Sfikas, Georgios Louloudis, Nikolaos Stamatopoulos, Basilis Gatos
Compact Deep Descriptors for Keyword Spotting. ICFHR (2018)
Angelos P. Giotis, Giorgos Sfikas, Basilis Gatos, Christophoros Nikou
A survey of document image word spotting techniques. Pattern Recognit. 68 (2017)
Giorgos Sfikas, Basilis Gatos, Christophoros Nikou
Semicca: A new semi-supervised probabilistic CCA model for keyword spotting. ICIP (2017)
George Retsinas, Giorgos Sfikas, Basilis Gatos
Transferable Deep Features for Keyword Spotting. IWCIM@EUSIPCO (2017)
George Retsinas, Nikolaos Stamatopoulos, Georgios Louloudis, Giorgos Sfikas, Basilis Gatos
Nonlinear Manifold Embedding on Keyword Spotting Using t-SNE. ICDAR (2017)
Giorgos Sfikas, George Retsinas, Basilis Gatos
A PHOC Decoder for Lexicon-Free Handwritten Word Recognition. ICDAR (2017)
Basilis Gatos, Georgios Louloudis, Nikolaos Stamatopoulos, Giorgos Sfikas
Historical Document Processing. DocEng (2017)
Giorgos Sfikas, George Retsinas, Basilis Gatos
Zoning Aggregated Hypercolumns for Keyword Spotting. ICFHR (2016)
Georgios Louloudis, Giorgos Sfikas, Nikolaos Stamatopoulos, Basilis Gatos
Word Segmentation Using the Student's-t Distribution. DAS (2016)
Giorgos Sfikas, Georgios Louloudis, Nikolaos Stamatopoulos, Basilis Gatos
Bayesian Mixture Models on Connected Components for Newspaper Article Segmentation. DocEng (2016)
Giorgos Sfikas, Christophoros Nikou
Bayesian Multiview Manifold Learning Applied to Hippocampus Shape and Clinical Score Data. MCV/BAMBI@MICCAI (2016)
Basilis Gatos, Nikolaos Stamatopoulos, Georgios Louloudis, Giorgos Sfikas, George Retsinas, Vassilis Papavassiliou, Fotini Sunistira, Vassilis Katsouros
GRPOLY-DB: An old Greek polytonic document image database. ICDAR (2015)
Giorgos Sfikas, Angelos P. Giotis, Georgios Louloudis, Basilis Gatos
Using attributes for word spotting and recognition in polytonic greek documents. ICDAR (2015)
Angelos P. Giotis, Giorgos Sfikas, Christophoros Nikou, Basilis Gatos
Shape-based word spotting in handwritten document images. ICDAR (2015)
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Galatsanos, Christian Heinrich
Majorization-minimization mixture model determination in image segmentation. CVPR (2011)
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Galatsanos, Christian Heinrich
Spatially Varying Mixtures Incorporating Line Processes for Image Segmentation. J. Math. Imaging Vis. 36 (2) (2010)
Giorgos Sfikas, Christian Heinrich, Christophoros Nikou
Multiple Atlas Inference and Population Analysis Using Spectral Clustering. ICPR (2010)
Giorgos Sfikas, Christian Heinrich, Jihad Zallat, Christophoros Nikou, Nikolas P. Galatsanos
Joint recovery and segmentation of polarimetric images using a compound MRF and mixture modeling. ICIP (2009)
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Galatsanos, Christian Heinrich
MR Brain Tissue Classification Using an Edge-Preserving Spatially Variant Bayesian Mixture Model. MICCAI (1) (2008)
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Galatsanos
Edge preserving spatially varying mixtures for image segmentation. CVPR (2008)
Giorgos Sfikas, Christophoros Nikou, Nikolas P. Galatsanos
Robust Image Segmentation with Mixtures of Student's t-Distributions. ICIP (1) (2007)
Giorgos Sfikas, Constantinos Constantinopoulos, Aristidis Likas, Nikolas P. Galatsanos
An Analytic Distance Metric for Gaussian Mixture Models with Application in Image Retrieval. ICANN (2) (2005)