Publications


207 entries « 4 of 5 »

2010

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

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

Distributed Consensus Algorithms for SVM Training in Wireless Sensor Networks In Proceedings

Signal Processing Conference, 2008 16th European, pp. 1-5, 2008, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Distributed Consesus, Sparse Representations, Support Vector Machines, Wireless Sensor Networks

Griffin, Anthony ; Tsakalides, Panagiotis

Compressed Sensing of Audio Signals Using Multiple Sensors In Proceedings

Signal Processing Conference, 2008 16th European, pp. 1-5, 2008, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Compressed Sensing, Matching Pursuit Algorithm, Nonsparse Audio Signals, Sensor Fusion, Wavelet Transform, Wireless Sensor Network

Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Modeling and Coding of Spot Microphone Signals for Immersive Audio Based on the Sinusoidal Model In Proceedings

Signal Processing Conference, 2008 16th European, pp. 1-5, IEEE, Lausanne, 2008, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Audio Coding, Immersive Performance, Sinusoidal Modeling, Speech Processing, Spot Microphone Signals

Tzagkarakis, George ; Beferull-Lozano, Baltasar ; Tsakalides, Panagiotis

Rotation-Invariant Texture Retrieval via Signature Alignment Based on Steerable Sub-Gaussian Modeling Journal Article

Image Processing, IEEE Transactions on, 17 (7), pp. 1212-1225, 2008, ISSN: 1057-7149.

Abstract | Links | BibTeX | Tags: Feature Extraction, Gaussianized Steerable Pyramids, Image Texture, Matrix-based Norm, Similarity Measurement

Wan, Tao ; Tzagkarakis, George ; Tsakalides, Panagiotis ; Canagarajah, Nishan ; Achim, Alin Marian

Context Enhancement Through Image Fusion: A Multiresolution Approach Based on Convolution of Cauchy Distributions In Proceedings

Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on, pp. 1309-1312, IEEE, Las Vegas, NV, 2008, ISSN: 1520-6149.

Abstract | Links | BibTeX | Tags: Cauchy Distribution, Feature Selection, Image Representation, Maximum Likelihood Estimation, Wavelet Transform

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Quality Enhancement of Compressed Audio Based on Statistical Conversion Journal Article

EURASIP Journal on Audio, Speech, and Music Processing, 2008 , pp. 5, 2008.

Abstract | BibTeX | Tags: Generalized Gaussian Mixture Model

Mouchtaris, Athanasios ; Karadimou, Kiki ; Tsakalides, Panagiotis

Multiresolution Source/Filter Model for Low Bitrate Coding of Spot Microphone Signals Journal Article

EURASIP J. Audio Speech Music Process., 2008 , pp. 1:1–1:16, 2008, ISSN: 1687-4714.

Abstract | Links | BibTeX | Tags: Audio Coding, Remote Mixing

Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Multichannel Audio Coding for Multimedia Services in Intelligent Environments In Collection

Multimedia Services in Intelligent Environments, pp. 103–148, Springer Berlin Heidelberg, 2008.

Abstract | BibTeX | Tags: Audio Coding, Immersive Performance, Multichannel Audio Compression

Mouchtaris, Athanasios ; Tzagkarakis, Christos ; Tsakalides, Panagiotis

Low Bitrate Coding of Spot Audio Signals for Interactive and Immersive Audio Applications In Collection

New Directions in Intelligent Interactive Multimedia, pp. 155–164, Springer Berlin Heidelberg, 2008.

Abstract | BibTeX | Tags: Audio Coding, Immersive Performance, Sinusoidal Modeling

2007

Stefanou, Hara ; Margaritis, Thanasis ; Kafetzopoulos, Dimitris ; Marias, Konstantinos ; Tsakalides, Panagiotis

Microarray Image Denoising Using a Two-Stage Multiresolution Technique In Proceedings

Bioinformatics and Biomedicine, 2007. BIBM 2007. IEEE International Conference on, pp. 383-389, IEEE, Fremont, CA, 2007.

Abstract | Links | BibTeX | Tags: Image Denoising, Medical Image Processing

Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Modeling Spot Microphone Signals using the Sinusoidal Plus Noise Approach In Proceedings

Applications of Signal Processing to Audio and Acoustics, 2007 IEEE Workshop on, pp. 183-186, IEEE, New Paltz, NY, USA, 2007.

Abstract | Links | BibTeX | Tags: Audio Coding, Sinusoidal Modeling, Spot Microphone Signals

Achim, Alin Marian ; Kuruoglu, Ercan Engin ; Bezerianos, Anastasios ; Tsakalides, Panagiotis

Comments on "A Closed-form Nonparametric Bayesian Estimator in the Wavelet Domain of Images Using an Approximate $alpha$-stable Prior" Journal Article

Pattern Recogn. Lett., 28 (13), pp. 1845–1847, 2007, ISSN: 0167-8655.

Abstract | Links | BibTeX | Tags: Alpha-stable Distribution, Bayesian Estimation, Image Denoising, Wavelet Transform

Kardamakis, Andreas ; Mouchtaris, Athanasios ; Pasadakis, Nikos

Linear Predictive Spectral Coding and Independent Component Analysis in Identifying Gasoline Constituents Using Infrared Spectroscopy Journal Article

Chemometrics and Intelligent Laboratory Systems, 89 (1), pp. 51–58, 2007.

Abstract | BibTeX | Tags: Fingerprinting, Independent Component Analysis, Infrared Spectroscopy, Linear Predictive Coding, Spectral Encoding

Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Sinusoidal Modeling of Spot Microphone Signals Based on Noise Transplantation for Multichannel Audio Coding In Proceedings

Signal Processing Conference, 2007 15th European, pp. 1362-1366, IEEE, Poznan, 2007.

Abstract | BibTeX | Tags: Audio Coding, Harmonic Analysis, Interchannel Similarity, Interference Suppression, Sinusoidal Modeling, Spot Microphone Signal

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Enhanced Multichannel Audio Resynthesis Through Residual Processing and Features Alignment In Proceedings

Multimedia and Expo, 2007 IEEE International Conference on, pp. 1267–1270, IEEE IEEE, Beijing, 2007.

Abstract | Links | BibTeX | Tags: Audio Reproduction, Cepstral Analysis, Feature Extraction

Mouchtaris, Athanasios ; Van der Spiegel, Jan ; Mueller, Paul ; Tsakalides, Panagiotis

A Spectral Conversion Approach to Single-Channel Speech Enhancement Journal Article

Audio, Speech, and Language Processing, IEEE Transactions on, 15 (4), pp. 1180-1193, 2007, ISSN: 1558-7916.

Abstract | Links | BibTeX | Tags: Gaussian Mixture Model, Iterative Wiener Filter, Kalman Filters, Noisy Speech, Speech Enhancement

Mouchtaris, Athanasios ; Agiomyrgiannakis, Yannis ; Stylianou, Yannis

Conditional Vector Quantization for Voice Conversion In Proceedings

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on, pp. IV-505 - IV-508, IEEE IEEE, Honolulu, HI, 2007.

Abstract | Links | BibTeX | Tags: Gaussian Mixture Model, Gaussian Processes, Spectral Analysis, Speech Processing, Speech Synthesis

Tzagkarakis, George ; Papadopouli, Maria ; Tsakalides, Panagiotis

Singular Spectrum Analysis of Traffic Workload in a Large-scale Wireless Lan In Proceedings

Proceedings of the 10th ACM Symposium on Modeling, Analysis, and Simulation of Wireless and Mobile Systems, pp. 99–108, ACM, Chania, Crete Island, Greece, 2007, ISBN: 978-1-59593-851-0.

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

Tzagkarakis, George ; Taroudakis, Michael ; Tsakalides, Panagiotis

A Statistical Geoacoustic Inversion Scheme based on a Modified Radial Basis Functions Neural Network Journal Article

Journal of Acoustical Society of America, 122 , pp. 1959 - 1968, 2007.

Abstract | BibTeX | Tags: Alpha-stable Distribution, Aplha-stable Models, Geoacoustic Inversion, Radial Basis Functions Networks

2006

Karadimou, Kiki ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Packet Loss Concealment for Multichannel Audio Using the Multiband Source/Filter Model In Proceedings

Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on, pp. 1105-1109, IEEE, Pacific Grove, CA, 2006, ISSN: 1058-6393.

Abstract | Links | BibTeX | Tags: Audio Coding, Low-bit rate Multichannel Audio Streaming, Wireless Channels

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

Training a SVM-based Classifier in Distributed Sensor Networks In Proceedings

Signal Processing Conference, 2006 14th European, pp. 1-5, IEEE, Florence, 2006, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Distributed Incremental Learning, Sparse Representations, Support Vector Machines, Wireless Sensor Networks

Mouchtaris, Athanasios ; Karadimou, Kiki ; Tsakalides, Panagiotis

Multiband Source/Filter Representation of Multichannel Audio for Reduction of Inter-channel Redundancy In Proceedings

Signal Processing Conference, 2006 14th European, pp. 1-5, IEEE, Florence, 2006, ISSN: 2219-5491.

Abstract | BibTeX | Tags: Audio Coding, Interchannel Redundancy, Interchannel Similarity, Multichannel Audio Signal

Tzagkarakis, George ; Beferull-Lozano, Baltasar ; Tsakalides, Panagiotis

Rotation-invariant Texture Retrieval with Gaussianized Steerable Pyramids Journal Article

Image Processing, IEEE Transactions on, 15 (9), pp. 2702-2718, 2006, ISSN: 1057-7149.

Abstract | Links | BibTeX | Tags: Covariance Analysis, Feature Extraction, Fractional Lower-order Moments, Gaussianized Steerable Pyramids, Image Texture, Kullback-Leibler Divergence

Mouchtaris, Athanasios ; Van der Spiegel, Jan ; Mueller, Paul

Nonparallel Training for Voice Conversion Based on a Parameter Adaptation Approach Journal Article

Audio, Speech, and Language Processing, IEEE Transactions on, 14 (3), pp. 952–963, 2006.

Abstract | Links | BibTeX | Tags: Gaussian Mixture Model, Speaker Identification, Speaker Recognition, Speech Processing, Speech Synthesis, Text-to-speech Synthesis

Tzagkarakis, Christos ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Musical Genre Classification VIA Generalized Gaussian and Alpha-Stable Modeling In Proceedings

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on, pp. V-V, IEEE, Toulouse, 2006, ISSN: 1520-6149.

Abstract | Links | BibTeX | Tags: Alpha-stable Distribution, Feature Extraction, Gaussian Processes, Generalized Gaussian Density, Kullback-Leibler Divergence, Musical Genre Classification, Wavelet Decomposition

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

Energy-efficient Distributed Support Vector Machines for Wireless Sensor Networks In Proceedings

Proceedings of the European Workshop on Wireless Sensor Networks, 2006.

Abstract | BibTeX | Tags: Support Vector Machines, Wireless Sensor Networks

Taroudakis, Michael ; Tzagkarakis, George ; Tsakalides, Panagiotis

Classification of Shallow-water Acoustic Signals via Alpha-Stable Modeling of the One-dimensional Wavelet Coefficients Journal Article

The Journal of the Acoustical Society of America, 119 (3), pp. 1396–1405, 2006.

Abstract | BibTeX | Tags: Acoustic Signal Processing, Aplha-stable Distribution, Wavelet Coefficients

2005

Mouchtaris, Athanasios ; Cao, Yuan ; Khan, Shehzad ; Van der Spiegel, Jan ; Mueller, Paul

Combined Software/Hardware Implementation of a Filterbank Front-end for Speech Recognition In Proceedings

Signal Processing Systems Design and Implementation, 2005. IEEE Workshop on, pp. 436–441, IEEE IEEE, 2005.

Abstract | Links | BibTeX | Tags: Filter Bank, Speech Recognition

Cantzos, Demetrios ; Mouchtaris, Athanasios ; Kyriakakis, Chris

Multichannel Audio Resynthesis Based on a Generalized Gaussian Mixture Model and Cepstral Smoothing In Proceedings

Applications of Signal Processing to Audio and Acoustics, 2005. IEEE Workshop on, pp. 215–218, IEEE 2005.

Abstract | Links | BibTeX | Tags: Audio Reproduction, Cepstral Analysis, Gaussian Processes, Generalized Gaussian Mixture Model

Karadimou, Kiki ; Mouchtaris, Athanasios ; Tsakalides, Panagiotis

Multichannel Audio Modeling and Coding Using a Multiband Source/Filter Model In Proceedings

Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on, pp. 907-911, IEEE, 2005, ISSN: 1058-6393.

Abstract | Links | BibTeX | Tags: Audio Recording, Information Filters

Taroudakis, Michael ; Tzagkarakis, George ; Tsakalides, Panagiotis

Characterization of an Underwater Acoustic Signal Using the Statistics of the Wavelet Subband Coefficients In Proceedings

7th International Conference on Theoretical & Computational Acoustics, pp. 167-174, Hang-Zhou, Zhejiang, China, 2005.

Abstract | Links | BibTeX | Tags: Acoustic Signal Processing, Wavelet Coefficients

Briassouli, Alexia ; Tsakalides, Panagiotis ; Stouraitis, Athanasios

Hidden Messages in Heavy-tails: DCT-domain Watermark Detection Using Alpha-stable Models Journal Article

Multimedia, IEEE Transactions on, 7 (4), pp. 700-715, 2005, ISSN: 1520-9210.

Abstract | Links | BibTeX | Tags: Alpha-stable Distribution, Discrete Cosine Transform, Image Watermarking, Neyman-Pearson Detector, Statistical Modeling

207 entries « 4 of 5 »