Publications


189 entries « 3 of 4 »

2012

Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Efficient High Dynamic Range Imaging via Matrix Completion In Proceedings

Machine Learning for Signal Processing (MLSP), 2012 IEEE International Workshop on, pp. 1-6, 2012, ISSN: 1551-2541.

Abstract | Links | BibTeX | Tags: High Dynamic Range Imaging, Image Reconstruction, Matrix Completion, Motion Artefact, Range Imaging

Griffin, Anthony ; Pavlidi, Despoina ; Puigt, Matthieu ; Mouchtaris, Athanasios

Real-time Multiple Speaker DOA Estimation in a Circular Microphone Array Based on Matching Pursuit In Proceedings

Proceedings of the 20th European Signal Processing Conference (EUSIPCO), pp. 2303-2307, 2012, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Array Signal Processing, DOA Estimation, Matching Pursuit Algorithm, Multiple Source Localization

Nikitaki, Sofia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Efficient Taining for Fingerprint Based Positioning Using Matrix Completion In Proceedings

Signal Processing Conference (EUSIPCO), 2012 Proceedings of the 20th European, pp. 195-199, 2012, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Fingerprinting, Matrix Completion, Wireless LAN

Tzagkarakis, George ; Tsagkatakis, Grigorios ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Compressive Video Classification in a Low-dimensional Manifold with Learned Distance Metric In Proceedings

Signal Processing Conference (EUSIPCO), 2012 Proceedings of the 20th European, pp. 155-159, 2012, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Compressed Sensing, Distance Metric Learning, Feature Extraction, Image Classification, Projections, Random Linear

Pavlidi, Despoina ; Griffin, Anthony ; Puigt, Matthieu ; Mouchtaris, Athanasios

Source Counting in Real-time Sound Source Localization Using a Circular Microphone Array In Proceedings

IEEE 7th Sensor Array and Multichannel Signal Processing Workshop (SAM), pp. 521-524, 2012, ISSN: 1551-2282.

Abstract | Links | BibTeX | Tags: Matching Pursuit Algorithm, Microphone Arrays

Puigt, Matthieu ; Griffin, Anthony ; Mouchtaris, Athanasios

Nonlinear Blind Mixture Identification Using Local Source Sparsity and Functional Data Clustering In Proceedings

Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 IEEE 7th, pp. 481-484, 2012, ISSN: 1551-2282.

Links | BibTeX | Tags: Blind Source Separation, Time Frequency Analysis

Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Dictionary Based Reconstruction and Classification of Randomly Sampled Sensor Network Data In Proceedings

Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 IEEE 7th, pp. 117-120, 2012, ISSN: 1551-2282.

Abstract | Links | BibTeX | Tags: Dictionary-based Reconstruction Matrix Completion, Network Coding, Wireless Sensor Networks

Tzagkarakis, George ; Charalampidis, Pavlos ; Tsagkatakis, Grigorios ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Compressive Video Classification for Decision Systems with Limited Resources In Proceedings

Picture Coding Symposium (PCS), 2012, pp. 353-356, 2012.

Abstract | Links | BibTeX | Tags: Compressed Sensing, Feature Extraction, Image Reconstruction, Support Vector Machines, Video Coding

Pavlidi, Despoina ; Puigt, Matthieu ; Griffin, Anthony ; Mouchtaris, Athanasios

Real-time Multiple Sound Source Localization Using a Circular Microphone Array Based on Single-source Confidence Measures In Proceedings

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2625-2628, 2012, ISSN: 1520-6149.

Abstract | Links | BibTeX | Tags: DOA Estimation, Microphone Arrays, Multiple Source Localization

Nikitaki, Sofia ; Tsakalides, Panagiotis

Decentralized Indoor Wireless Localization Using Compressed Sensing of Signal-strength Fingerprints In Proceedings

Proceedings of the 7th ACM Workshop on Performance Monitoring and Measurement of Heterogeneous Wireless and Wired Networks, pp. 37–44, ACM, Paphos, Cyprus, 2012, ISBN: 978-1-4503-1626-2.

Abstract | Links | BibTeX | Tags: Compressed Sensing, Fingerprinting, Indoor Localization, RSSI

Tsagkatakis, Grigorios ; Woiselle, Arnaud ; Tzagkarakis, George ; Bousquet, Marc ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Active Range Imaging via Random Gating In Proceedings

2012 SPIE Security and Defense, International Society for Optics and Photonics 2012.

Abstract | BibTeX | Tags: Compressed Sensing, Range Imaging

Tzagkarakis, George ; Woiselle, Arnaud ; Tsakalides, Panagiotis ; Starck, Jean-Luc

Design of a Compressive Remote Imaging System Compensating a Highly Lightweight Encoding with a Refined Decoding Scheme. In Proceedings

International Conference on Computer Vision Theory and Applications (VISAPP '12), pp. 46–55, 2012.

Abstract | BibTeX | Tags: Compressed Sensing, Remote Imaging

2011

Starck, Jean-Luc ; Fadili, Jalal ; Elad, Michael ; Nowak, Robert ; Tsakalides, Panagiotis

Introduction to the Issue on Adaptive Sparse Representation of Data and Applications in Signal and Image Processing Journal Article

Selected Topics in Signal Processing, IEEE Journal of, 5 (5), pp. 893-895, 2011, ISSN: 1932-4553.

Abstract | Links | BibTeX | Tags: Adaptive Signal Processing, Image Representation, Numerical Analysis

Milioris, Dimitris ; Tzagkarakis, George ; Jacquet, Philippe ; Tsakalides, Panagiotis

Indoor Positioning in Wireless LANS Using Compressive Sensing Signal-strength Fingerprints In Proceedings

Signal Processing Conference, 2011 19th European, pp. 1776-1780, 2011, ISSN: 2076-1465.

Abstract | BibTeX | Tags: Compressed Sensing, Fingerprinting, Indoor Localization, Random Linear Projections, Wireless Networks

Nikitaki, Sofia ; Tsakalides, Panagiotis

Localization in Wireless Networks Based on Jointly Compressed Sensing In Proceedings

Signal Processing Conference, 2011 19th European, pp. 1809-1813, 2011, ISSN: 2076-1465.

Abstract | BibTeX | Tags: Access Point Estimation, Compressed Sensing, Indoor Localization, Sensor Placement, Wireless Sensor Networks

Tzagkarakis, George ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Joint Sparse Signal Ensemble Reconstruction in a WSN Using Decentralized Bayesian Matching Pursuit In Proceedings

Signal Processing Conference, 2011 19th European, pp. 338-342, 2011, ISSN: 2076-1465.

Abstract | BibTeX | Tags: Bayesian Methods, Compressed Sensing, Matching Pursuit Algorithm, Signal Reconstruction, Wireless Sensor Networks

Griffin, Anthony ; Hirvonen, Toni ; Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Single-Channel and Multi-Channel Sinusoidal Audio Coding Using Compressed Sensing Journal Article

Audio, Speech, and Language Processing, IEEE Transactions on, 19 (5), pp. 1382-1395, 2011, ISSN: 1558-7916.

Abstract | Links | BibTeX | Tags: Audio Coding, Compressed Sensing, Signal Reconstruction, Sinusoidal Modeling

Agrawal, Tanish ; Lakkundi, Vishwas ; Griffin, Anthony ; Tsakalides, Panagiotis

Compressed Sensing for OFDM UWB Systems In Proceedings

Radio and Wireless Symposium (RWS), 2011 IEEE, pp. 190-193, 2011.

Abstract | Links | BibTeX | Tags: Channel Estimation, Compressed Sensing, Matching Pursuit Algorithm, OFDM UWB Systems

Alexandridis, Anastasios ; Charonyktakis, Paulos ; Makrogiannakis, Antonis ; Papakonstantinou, Artemis ; Papadopouli, Maria

Forthroid on Android: A QR-code Based Information Access System for Smart Phones In Proceedings

Local & Metropolitan Area Networks (LANMAN), 2011 18th IEEE Workshop on, pp. 1–6, IEEE 2011.

Abstract | BibTeX | Tags: Android, Location-based Systems, QR-code, Smart Phones

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Perceptually-Driven Scalable MDCT Enhancement of Compressed Audio Based on Statistical Conversion In Proceedings

Multimedia (ISM), 2011 IEEE International Symposium on, pp. 41–46, IEEE 2011.

Abstract | BibTeX | Tags: Audio Coding, Psychoacoustic Models, Statistical Analysis

Hirvonen, Toni ; Mouchtaris, Athanasios

On the Multichannel Sinusoidal Model for Coding Audio Object Signals In Proceedings

Audio Engineering Society Convention 130, Audio Engineering Society 2011.

Abstract | BibTeX | Tags: Audio Coding, Sinusoidal Modeling

Puigt, Matthieu ; Griffin, Anthony ; Mouchtaris, Athanasios

Post-nonlinear Speech Mixture Identification Using Single-source Temporal Zones and Curve Clustering In Proceedings

Signal Processing Conference, 2011 19th European, pp. 1844–1848, IEEE 2011.

Abstract | BibTeX | Tags: Blind Source Separation, Speech Processing

Tryfou, Georgina ; Harma, Aki ; Mouchtaris, Athanasios

Tempo Estimation Based on Linear Prediction and Perceptual Modelling In Proceedings

Proc. 12th International Society for Music Information Retrieval Conference (ISMIR 2011), pp. 197–202, 2011.

Abstract | BibTeX | Tags: Linear Prediction Error Filter, Music Information Retrieval

2010

Nikitaki, Sofia ; Tsakalides, Panagiotis

Localization in Wireless Networks via Spatial Sparsity In Proceedings

Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on, pp. 236-239, 2010, ISSN: 1058-6393.

Abstract | Links | BibTeX | Tags: Bayesian Methods, Compressed Sensing, Mean Localization Error, Measurement Uncertainty, Spatial Sparsity

Achim, Alin Marian ; Buxton, Benjamin ; Tzagkarakis, George ; Tsakalides, Panagiotis

Compressive Sensing for Ultrasound RF Echoes Using a-Stable Distributions In Proceedings

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE, pp. 4304-4307, 2010, ISSN: 1557-170X.

Abstract | Links | BibTeX | Tags: Alpha-stable Distribution, Compressed Sensing, Image Reconstruction, Medical Image Processing, Ultrasonic Imaging

Agrawal, Mayank ; Tsakalides, Panagiotis ; Achim, Alin Marian

Medical Image Fusion Using the Convolution of Meridian Distributions In Proceedings

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE, pp. 3727-3730, 2010, ISSN: 1557-170X.

Abstract | Links | BibTeX | Tags: Medical Image Fusion, Medical Image Processing, non-Gaussian Statistical Modelling, Wavelet Coefficients, Wavelet Transform

Gkirtzou, Katerina ; Tsamardinos, Ioannis ; Tsakalides, Panagiotis ; Poirazi, Panayiota

MatureBayes: A Probabilistic Algorithm for Identifying the Mature miRNA Within Novel Precursors Journal Article

PloS one, 5 (8), pp. e11843, 2010.

Abstract | BibTeX | Tags: Feature Selection, Statistical Distributions

Griffin, Anthony ; Hirvonen, Toni ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Multichannel Audio Coding Using Sinusoidal Modelling and Compressed Sensing In Proceedings

Signal Processing Conference, 2010 18th European, pp. 1439-1443, 2010, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Audio Coding, Compressed Sensing, Decoding, Psychoacoustic Models, Sinusoidal Modeling, Speech Processing

Tzagkarakis, Christos ; Mouchtaris, Athanasios

Robust Text-independent Speaker Identification Using Short Test and Training Sessions In Proceedings

Signal Processing Conference, 2010 18th European, pp. 586-590, 2010, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Gaussian Mixture Models, Signal Classification, Speaker Identification

Tzagkarakis, George ; Tsakalides, Panagiotis

Distributed Compressed Sensing of Non-negative Signals Using Symmetric Alpha-stable Distributions In Proceedings

Signal Processing Conference, 2010 18th European, pp. 422-426, 2010, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Alpha-stable Distribution, Compressed Sensing, Parameter Estimation, Wireless Sensor Networks

Tzagkarakis, George ; Tsakalides, Panagiotis

Greedy Sparse Reconstruction of Non-negative Signals Using Symmetric Alpha-stable Distributions In Proceedings

Signal Processing Conference, 2010 18th European, pp. 417-421, 2010, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Alpha-stable Distribution, Compressed Sensing, Signal Reconstruction

Tzagkarakis, George ; Tsakalides, Panagiotis

Sparse Representation of Medical Images via Compressed Sensing Using Gaussian Scale Mixtures In Proceedings

Biomedical Imaging: From Nano to Macro, 2010 IEEE International Symposium on, pp. 744-747, 2010, ISSN: 1945-7928.

Abstract | Links | BibTeX | Tags: Compressed Sensing, Image Coding, Image Reconstruction, Medical Image Processing, MRI, Sparse Representations

Tzagkarakis, George ; Milioris, Dimitris ; Tsakalides, Panagiotis

Multiple-measurement Bayesian Compressed Sensing Using GSM Priors for DOA Estimation In Proceedings

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 2610-2613, 2010, ISSN: 1520-6149.

Abstract | Links | BibTeX | Tags: Bayesian Methods, Compressed Sensing, DOA Estimation, Gaussian Processes

Tzagkarakis, George ; Tsakalides, Panagiotis

Bayesian Compressed Sensing Imaging Using a Gaussian Scale Mixture In Proceedings

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 1226-1229, 2010, ISSN: 1520-6149.

Abstract | Links | BibTeX | Tags: Bayesian Methods, Compressed Sensing, Image Coding, Image Reconstruction, Sparse Representations

Griffin, Anthony ; Karamichali, Eleni ; Mouchtaris, Athanasios

Speaker Identification Using Sparse Excited Speech Signals and Compressed Sensing In Proceedings

Signal Processing Conference, 2010 18th European, 2010.

Abstract | BibTeX | Tags: Compressed Sensing, Speech Coding

Hirvonen, Toni ; Mouchtaris, Athanasios

Sinusoidal Spatial Audio Coding for Low-bitrate Binaural Reproduction In Proceedings

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 389–392, IEEE 2010.

Abstract | BibTeX | Tags: Audio Coding, Spatial Audio

Hirvonen, Toni ; Mouchtaris, Athanasios

Top-down Strategies in Parameter Selection of Sinusoidal Modeling of Audio In Proceedings

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 273–276, IEEE 2010.

Abstract | BibTeX | Tags: Audio Coding, Sinusoidal Modeling

Milioris, Dimitris ; Kriara, Lito ; Papakonstantinou, Artemis ; Tzagkarakis, George ; Tsakalides, Panagiotis ; Papadopouli, Maria

Empirical Evaluation of Signal-strength Fingerprint Positioning in Wireless LANs In Proceedings

Proceedings of the 13th ACM International Conference on Modeling, Analysis, and Simulation of Wireless and Mobile Systems, pp. 5–13, ACM, Bodrum, Turkey, 2010, ISBN: 978-1-4503-0274-6.

Abstract | Links | BibTeX | Tags: Kullback-Leibler Divergence, Multivariate Gaussian Model, RSSI Measurements

2009

Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

A Multichannel Sinusoidal Model Applied to Spot Microphone Signals for Immersive Audio Journal Article

Audio, Speech, and Language Processing, IEEE Transactions on, 17 (8), pp. 1483-1497, 2009, ISSN: 1558-7916.

Abstract | Links | BibTeX | Tags: Audio Coding, Immersive Performance, Sinusoidal Modeling, Sound Reproduction, Spot Microphone Signal

Kornaropoulos, Evgenios M; Tsakalides, Panagiotis

A Novel kNN Classifier for Acoustic Vehicle Classification Based on Alpha-stable Statistical Modeling In Proceedings

Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on, pp. 1-4, IEEE, Cardiff, 2009.

Abstract | Links | BibTeX | Tags: Acoustic Signal Processing, Alpha-stable Distribution, Kullback-Leibler Divergence, Wavelet Decomposition, Wireless Sensor Networks

Tzagkarakis, George ; Tsakalides, Panagiotis

Bayesian Compressed Sensing of a Highly Impulsive Signal in Heavy-tailed Noise Using a Multivariate Cauchy Prior In Proceedings

Signal Processing Conference, 2009 17th European, pp. 2293-2297, 2009.

Abstract | BibTeX | Tags: Bayesian Methods, Compressed Sensing, Gaussian Mixture Model

Flouri, Kallirroi ; Beferull-Lozano, Baltasar ; Tsakalides, Panagiotis

Optimal Gossip Algorithm for Distributed Consensus SVM Training in Wireless Sensor Networks In Proceedings

Digital Signal Processing, 2009 16th International Conference on, pp. 1-6, 2009.

Abstract | Links | BibTeX | Tags: Convex Optimization, Distributed Consensus, Support Vector Machines, Wireless Sensor Networks

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Bandwidth Extension of Low Bitrate Compressed Audio Based on Statistical Conversion In Proceedings

Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on, pp. 97–100, IEEE IEEE, New York, NY, 2009.

Abstract | Links | BibTeX | Tags: Data Compression, Frequency Spectrum Reconstruction, Psychoacoustic Models

Griffin, Anthony ; Hirvonen, Toni ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Encoding the Sinusoidal Model of an Audio Signal Using Compressed Sensing In Proceedings

Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on, pp. 153-156, IEEE, New York, NY, 2009, ISSN: 1945-7871.

Abstract | Links | BibTeX | Tags: Audio Coding, Compressed Sensing, Cryptography, Psychoacoustic Models, Sinusoidal Modeling, Speech Processing

Tzagkarakis, George ; Papadopouli, Maria ; Tsakalides, Panagiotis

Trend Forecasting Based on Singular Spectrum Analysis of Traffic Workload in a Large-scale Wireless LAN Journal Article

Perform. Eval., 66 (3-5), pp. 173–190, 2009, ISSN: 0166-5316.

Abstract | Links | BibTeX | Tags: Singular Spectrum Analysis, Traffic Load Forecasting, Wireless Networks

Griffin, Anthony ; Tzagkarakis, Christos ; Hirvonen, Toni ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Efficient Encoding of a Sinusoidally-Modelled Audio Signal Using Compressed Sensing Technical Report

Institute of Computer Science, Foundation for Research and Technology-Hellas 2009.

Abstract | BibTeX | Tags: Audio Coding, Compressed Sensing

Griffin, Anthony ; Tzagkarakis, Christos ; Hirvonen, Toni ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Exploiting the Sparsity of the Sinusoidal Model Using Compressed Sensing for audio coding In Proceedings

SPARS'09-Signal Processing with Adaptive Sparse Structured Representations, 2009.

Abstract | BibTeX | Tags: Audio Coding, Compressed Sensing, Sparse Representations

Mouchtaris, Athanasios ; Tsakalides, Panagiotis

The ASPIRE Project-Sensor Networks for Immersive Multimedia Environments Miscellaneous

2009.

Abstract | BibTeX | Tags: Immersive Performance, Wireless Sensor Networks

2008

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Synthesis of Enhanced Audio From Low Bitrate Compressed Audio Based on Unit Selection and Statistical Conversion Methods In Proceedings

Signals, Systems and Computers, 2008 42nd Asilomar Conference on, pp. 2174–2179, IEEE IEEE, Pacific Grove, CA, 2008.

Abstract | Links | BibTeX | Tags: Audio Coding, Compressed Audio Signal, Spectral Analysis, Speech Processing, Speech Synthesis

Gkirtzou, Katerina ; Tsakalides, Panagiotis ; Poirazi, Panayiota

Mature miRNA Identification via the Use of a Naive Bayes Classifier In Proceedings

BioInformatics and BioEngineering, 2008. BIBE 2008. 8th IEEE International Conference on, pp. 1-5, IEEE, Athens, 2008.

Abstract | Links | BibTeX | Tags: Bayesian Methods, Kullback-Leibler Divergence, Naive Bayes Classifier

189 entries « 3 of 4 »