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Multimedia Informatics Lab

2009

Journals

D. Cantzos, A. Mouchtaris, and C. Kyriakakis, "Quality Enhancement of Compressed Audio Based on Statistical Conversion," accepted to appear Eurasip Journal on Audio, Speech, and Music Processing.

A. Holzapfel; Y. Stylianou; A.C. Gedik; B. Bozkurt, "THREE DIMENSIONS OF PITCHED INSTRUMENT ONSET DETECTION", Accepted in IEEE Trans. on Audio, Speech and Language Procesing

A. Holzapfel; Y. Stylianou, "Scale transform in rhythmic similarity of music", Submitted to IEEE Trans. on Audio, Speech and Language Procesing

N. Komodakis, N. Paragios and G. Tziritas, "Message Passing and MRF Optimization via Dual Decomposition", IEEE Transactions on Pattern Analysis and Machine Intelligence , (submitted)

N. Komodakis and G. Tziritas, "Real-time exploration and photorealistic reconstruction of large natural environments", Visual Computer, Vol. 25, No. 2, pp. 117-137, paper

A. Mouchtaris, K. Karadimou, and P. Tsakalides, "Multiresolution Source/Filter Model for Low Bitrate Multichannel Audio Coding", accepted to appear Eurasip Journal on Audio, Speech, and Music Processing.

C. Panagiotakis, K. Athanassopoulos and G. Tziritas, "The curve equipartition problem", Computational Geometry: Theory and Applications, (in press)

C. Panagiotakis, A. Doulamis and G. Tziritas, "Equivalent key frames selection based on Iso-content principles", IEEE Transactions on Circuits and Systems for Video Technology, Vol. 19, No. 3, pp. 447-451

E. Ramasso, C. Panagiotakis, M. Rombaut, D. Pellerin and G. Tziritas, "Human shape-motion analysis for action/activity recognition applied to athletic videos", Electronic Letters on Computer Vision and Image Analysis, Vol. 7, No. 4, pp. 32-50, paper

C. Tzagkarakis, A. Mouchtaris, and P. Tsakalides, "A Multichannel Harmonic Model Applied to Spot Microphone Signals for Immersive Audio", submitted IEEE Trans. Audio, Speech, and Language Processing.

G. Tzagkarakis, M. Papadopouli, and P. Tsakalides, "Trend Forecasting based on Singular Spectrum Analysis of Traffic Workload in a Large-Scale Wireless LAN," Performance Evaluation, vol. 66, no. 3, pp. 173-190, paper.

M. Vasilakis; Y. Stylianou, "Spectral jitter modeling and estimation", Biomedical Signal Processing & Control Special Issue: M&A of Vocal Emissions

M. Vasilakis; Y. Stylianou, "Voice pathology detection based on short-time jitter estimations in running speech", Folia Phoniatrica et Logopaedica

Conferences

A. Besbes, N. Paragios, N. Komodakis, and G. Langs, Shape Priors and Discrete MRFs for Knowledge-based Segmentation, Intern. Conf. on Computer Vision and Pattern Recognition

K. Flouri, B. Beferull-Lozano, and P. Tsakalides, "Optimal Gossip Algorithm for Distributed Consensus SVM Training in Wireless Sensor Networks," in Proc. 16th International Conference on Digital Signal Processing (DSP '09), , Santorini, Greece, paper.

K. Gkirtzou, P. Tsakalides, and P. Poirazi, "Mature miRNA Identification via the Use of a Naive Bayes Classifier," in Proc. 8th IEEE International Conference on BioInformatics and BioEngineering (BIBE '08), Athens, Greece, paper.

B. Glocker, N. Komodakis, G. Tziritas, N. Navab and N. Paragios, Dense Registration with Deformation Priors, Information Processing in Medical Imaging

A. Griffin, T. Hirvonen, A. Mouchtaris, and P. Tsakalides, "Encoding the Sinusoidal Model of an Audio Signal using Compressed Sensing," in Proc. 2009 IEEE International Conference on Multimedia & Expo (ICME '09), , Cancun, Mexico.

A. Griffin, C. Tzagkarakis, T. Hirvonen, A. Mouchtaris, and P. Tsakalides, "Exploiting the Sparsity of the Sinusoidal Model Using Compressed Sensing for Audio Coding," in Proc. 2009 Workshop on Signal Processing with Adaptive Sparse Structured Representations (SPARS '09), Saint-Malo, France,

H. Heibel, B. Glocker, M. Groher, N. Paragios, N. Komodakis and N. Navab, Discrete Tracking of Parametrized Curves, Intern. Conf. on Computer Vision and Pattern Recognition

A. Holzapfel; Y. Stylianou, "A SCALE TRANSFORM BASED METHOD FOR RHYTHMIC SIMILARITY OF MUSIC", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

N. Komodakis and N. Paragios, Beyond Pairwise Energies: Efficient Optimization for Higher-order MRFs, Intern. Conf. on Computer Vision and Pattern Recognition

Markaki M. and Stylianou Y., "Evaluation of Modulation Frequency Features for Speaker Verification and Identification", to appear in: Proceedings of EUSIPCO, Glasgow, Scotland, August 2009.

Markaki M. and Stylianou Y., "Normalized Modulation Spectral Features for Cross-Database Voice Pathology Detection", to appear in: Proceedings of InterSpeech, Brighton, U.K., September 2009.

Markaki M. and Stylianou Y., "Using Modulation Spectra for Voice Pathology Detection and Classification", to appear in: Proceedings of IEEE EMBC'09 , Minneapolis, Minnesota, U.S.A., September 2009.

C. Panagiotakis and G. Tziritas, Signal Segmentation and Modelling based on Equipartition Principle, International Conference on Digital Signal Processing

Yannis Pantazis, Olivier Rosec and Yannis Stylianou, "CHIRP RATE ESTIMATION OF SPEECH BASED ON A TIME-VARYING QUASI-MODEL", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2009, Paper

Yannis Stylianou, "Voice Transformation: A survey", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan

G. Tzagkarakis and P. Tsakalides, "Bayesian Compressed Sensing of a Highly Impulsive Signal in Heavy-Tailed Noise using a Multivariate Cauchy Prior," in Proc. 17th European Signal Processing Conference (EUSIPCO '09), , Glasgow, Scotland.

2008

Book Chapters

M. Markaki; Y. Stylianou, "Extraction of Speech-relevant Information from Modulation Spectrograms", Springer Lecture Notes in Computer Science: Progress in Non Linear Speech Processing , Volume Editors: Yannis Stylianou, Marcos Faundez Zanuy and Anna Esposito, Springer, ISBN 3540715037

A. Mouchtaris, Christos Tzagkarakis, and P. Tsakalides, "Low Bitrate Coding of Spot Audio Signals for Interactive and Immersive Audio Applications," New Directions in Intelligent Interactive Multimedia, G. A. Tsihrintzis and L. Jain Eds., Springer Studies in Computational Intelligence, ISBN: 978-3-540-68126-7, pp. 155-164.

A. Mouchtaris and P. Tsakalides, "Multichannel Audio Coding for Multimedia Services in Intelligent Environments," in Multimedia Services in Intelligent Environments, G. A. Tsihrintzis and L. Jain Eds., Springer Studies in Computational Intelligence, ISBN 978-3-540-78491-3, Germany, pp. 103-148.

Yannis Stylianou, "Voice Transformation", Invited Chapter in: Springer Handbook of Speech Processing and Speech Communications , pp. 489-503, editors-in-chief: Jacob Benesty, Yiteng (Arden) Huang and M. Mohan Sondhi Springer, ISBN 978-3-540-49125-5

Journals

Y. Agiomyrgiannakis; Y. Stylianou, "Wrapped Gaussian Mixture Models for Modeling and High-Rate Quantization of Phase Data of Speech", Accepted for publication in IEEE Trans on. Audio, Speech and Language Processing

N. d'Alessandro; O. Babacan; B. Bozkurt; T. Dubuisson; A. Holzapfel; L. Kessous; A. Moinet; M. Vlieghe; T. Dutoit, "RAMCESS 2.x FRAMEWORK - EXPRESSIVE VOICE ANALYSIS FOR REALTIME AND ACCURATE SYNTHESIS OF SINGING", Journal on Multimodal User Interfaces

B. Glocker, N. Komodakis, G. Tziritas, N. Navab and N.Paragios, "Dense Image Registration through MRFs and Efficient Linear Programming", Medical Image Analysis, pp. 731-741, paper

A. Holzapfel; Y. Stylianou, "MUSICAL GENRE CLASSIFICATION USING NON-NEGATIVE MATRIX FACTORIZATION BASED FEATURES", Special Issue of IEEE Trans. on Audio, Speech and Language Procesing on Music Information retrieval, Paper , bibtex

V. Kandia; Y. Stylianou, "Detection of Clicks based on Group Delay", Canadian Acoustics, vol.36, no.1, pp 48-54 Special Issue on Marine Mammals Detection and Classification

N. Komodakis, G. Tziritas and N. Paragios, "Performance vs Computational Efficiency for Optimizing Single and Dynamic MRFs: Setting the State of the Art with Primal Dual Strategies", Computer Vision and Image Understanding, Vol. 112, pp. 14-29, paper

N. Komodakis and G. Tziritas, "Morphable 3D-Mosaics: a Hybrid Framework for Photorealistic Walkthroughs of Large Natural Environments" Advances in Multimedia, paper

A. Mouchtaris, K. Karadimou, and P. Tsakalides, "Multiresolution Source/Filter Model for Low Bitrate Coding of Spot Microphone Signals," EURASIP Journal on Audio, Speech, and Music Processing, doi:10.1155/2008/624321, 2008.

C. Panagiotakis, E. Kokinou, F. Vallianatos, "Automatic P Phase Picking Based on Local Maxima Distribution, IEEE Trans. on Geoscience and Remote Sensing, Vol. 46, No. 8, paper

C. Panagiotakis, E. Ramasso, G. Tziritas, D. Pellerin and M. Rombaut, "Shape-based individual/group detection for sport videos categorization", International Journal on Pattern Recognition and Artificial Intelligence, Vol. 22, pp. 1187-1213, paper

E. Ramasso, C. Panagiotakis, M. Rombaut, D. Pellerin, "Human action recognition in videos based on the Transferable Belief Model, Application to athletics jumps", Pattern analysis and Applications, Vol. 11, No. 1, pp. 1-19, paper

G. Tzagkarakis, B. Beferull-Lozano, and P. Tsakalides, "Rotation-Invariant Texture Retrieval via Signature Alignment based on Steerable sub-Gaussian Modeling," IEEE Transactions on Image Processing, vol. 17, no. 7, pp. 1212-1225, June 2008.

Conferences

Ê. Flouri, B. Beferull-Lozano, and P. Tsakalides, "Distributed Consensus Algorithms for SVM training in Wireless Sensor Networks," , in Proc. 16th European Signal Processing Conference (EUSIPCO '08), Lausanne, Switzerland,

Ê. Flouri, B. Beferull-Lozano, and P. Tsakalides, "Selective Gossiping for SVM Training in Wireless Sensor Networks," in Proc. 5th European Workshop on Wireless Sensor Networks (EWSN '08), Bologna, Italy.

B. Glocker, N. Paragios, N. Komodakis, G. Tziritas and N. Navab, "Optical Flow Estimation with Uncertainties through Dynamic MRFs", Intern. Conf. on Computer Vision and Pattern Recognition, paper

A. Griffin and P. Tsakalides, "Compressed Sensing of Audio Signals Using Multiple Sensors," in Proc. 16th European Signal Processing Conference (EUSIPCO '08), Lausanne, Switzerland,

A. Griffin and P. Tsakalides, "Compressed Sensing of Audio Signals in a Wireless Sensor Network," in Proc. 5th European Workshop on Wireless Sensor Networks (EWSN '08), Bologna, Italy,

A. Holzapfel; Y. Stylianou, "RHYTHMIC SIMILARITY OF MUSIC BASED ON DYNAMIC PERIODICITY WARPING", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , Dataset , bibtex

A. Holzapfel; Y. Stylianou, "BEAT TRACKING USING GROUP DELAY BASED ONSET DETECTION", ISMIR 2008, Paper, Dataset

Varvara Kandia, Yannis Stylianou, and Thierry Dutoit, "Improve the accuracy of TDOA measurement using the Teager-Kaiser Energy operator", IEEE Passive08, Hyères, French Riviera , France

Varvara Kandia and Yannis Stylianou, "A Phase based detector of whale clicks", IEEE Passive08, Hyères, French Riviera , France

N. Komodakis, N. Paragios and G. Tziritas, "Clustering via LP-based Stabilities", Neural Information Processing Systems Conference, paper

N. Komodakis and N. Paragios, "Beyond Loose LP-relaxations: Optimizing MRFs by Repairing Cycles", European Conference on Computer Vision, paper

M. Markaki; Y. Stylianou, "Discrimination of Speech from nonspeech in broadcast news based on modulation frequency features", Proceedings of ISCA Tutorial and Research Workshop: Speech Analysis and Processing for Knowledge Discovery, Aalborg, Denmark, June 2008, Paper

Markaki M. and Stylianou Y., "Dimensionality Reduction of Modulation Frequency Features for Speech Discrimination", Proceedings of InterSpeech, Brisbane, Australia, September 2008, Paper.

Markaki M., Holzapfel A. and Stylianou Y., "Singing Voice Detection using Modulation Frequency Features", Proceedings of ISCA Tutorial and Research Workshop on Statistical and Perceptual Audition (SAPA), Brisbane, Australia, September 2008, Paper

A. Mouchtaris, C. Tzagkarakis, and P. Tsakalides, "Low Bitrate Coding of Spot Audio Signals for Interactive and Immersive Audio Applications," in Proc. 1st International Symposium on Inteligent Interactive Multimedia Systems and Services (KES-IIMSS '08), University of Piraeus, Greece,

Yannis Pantazis and Yannis Stylianou, "IMPROVING THE MODELING OF THE NOISE PART IN THE HARMONIC PLUS NOISE MODEL OF SPEECH", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2008, Paper

Yannis Pantazis, Olivier Rosec and Yannis Stylianou, "ON THE ESTIMATION OF SPEECH HARMONIC MODEL", ISCA Tutorial and Research Workshop (ITRW) on "Speech Analysis and Processing for Knowledge Discovery", 2008, Paper

Yannis Pantazis, Olivier Rosec and Yannis Stylianou, "ON THE PROPERTIES OF A TIME-VARYING QUASI-HARMONIC MODEL OF SPEECH", INTERSPEECH 2008, Paper

M. Sardarescu, N. Paragios, N. Komodakis, R. Raymond, P. Hernigou and A. Rahmouni, "Knee Reconstruction through Efficient Linear Programming", IEEE International Symposium on Biomedical Imaging, paper

C. Tzagkarakis, A. Mouchtaris, and P. Tsakalides, "Modeling and Coding of Spot Microphone Signals for Immersive Audio Based on the Sinusoidal Model," in Proc. 16th European Signal Processing Conference (EUSIPCO '08), Lausanne, Switzerland,

C. Wachinger, B. Glocker, J. Zeltner, N. Paragios, N. Komodakis, M.S. Hansen and N. Navab, "Deformable Mosaicing for Whole-body MRI, Intern. Conf. on Medical Image Computing and Computer Assisted Intervention

T. Wan, G. Tzagkarakis, P. Tsakalides, N. Canagarajah, and A. Achim, "Context Enhancement Through Image Fusion: A Multiresolution Approach Based on Convolution of Cauchy Distributions," in Proc. 2008 International Conference on Acoustics, Speech, and Signal Processing (ICASSP '08), Las Vegas, NV,

2007

Book Chapters

Y. Pantazis; Y. Stylianou, "On the Detection of Discontinuities in Concatenative Speech Synthesis", Springer Lecture Notes in Computer Sciences: Progress in Non Linear Speech Processing , Volume Editors: Yannis Stylianou, Marcos Faundez Zanuy and Anna Esposito, Springer, ISBN 3540715037

Journals

Y. Agiomyrgiannakis; Y. Stylianou, "Conditional Vector Quantization for Speech Coding", IEEE Trans. on Audio, Speech and Language Processing, Vol. 15(2), pp. 377-386

A. Kardamakis, A. Mouchtaris, and N. Pasadakis, "Linear predictive spectral coding and independent component analysis in identifying gasoline constituents using infrared spectroscopy," Chemometrics and Intelligent Laboratory Systems, vol. 89 (1), pp. 51-58, Paper.

N. Komodakis and G. Tziritas, "Image Completion Using Efficient Belief Propagation via Priority Scheduling and Dynamic Pruning", IEEE Transactions on Image Processing, Vol. 16, No. 11, pp. 2649 - 2661, Paper.

N. Komodakis and G. Tziritas, "Approximate labeling via graph cuts based on linear programming", IEEE Transactions on Pattern Analysis and Machine Intelligence, pp. 1436-1453, Paper.

A. Mouchtaris, J. Van der Spiegel, P. Mueller, and P. Tsakalides, "A Spectral Conversion Approach to Single Channel Speech Enhancement", IEEE Trans. Audio, Speech and Language Processing, vol. 15, no. 4, pp. 1180-1193, Paper.

C. Panagiotakis and G. Tziritas, "Any dimension polygonal approximation based on equidistance principle", Pattern Recognition Letters, Vol. 28, No. 5, pp. 582-591, Paper.

G. Tzagkarakis, M. I. Taroudakis, and P. Tsakalides, "A Statistical Geoacoustic Inversion Scheme Based on a Modified Radial Basis Functions Neural Network," Journal of the Acoustical Society of America, vol. 122, no. 4, pp. 1959-1968.

Conferences

Yannis Agiomyrgiannakis and Yannis Stylianou, "Stochastic Modeling and Quantization of Harmonic Phases in Speech Using Wrapped Gaussian Mixture Models", IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2007, Hawai, USA 2007

Yannis Agiomyrgiannakis and Yannis Stylianou, "The Harmonic Model Codec (HMC) framework for VoIP", Interspeech, 28-31 August 2007, Antwerp, Belgium

Yannis Agiomyrgiannakis and Yannis Stylianou, "Bit-Erasure Channel Decoding for GMM-based Multiple Description Coding", Interspeech, 28-31 August 2007, Antwerp, Belgium

A. Besbes, N. Komodakis, B. Glocker, G. Tziritas and N. Paragios, "4D Ventricular Segmentation and Wall Motion Estimation Using Efficient Discrete Optimization", International Symposium in Visual Computing. D. Cantzos, A. Mouchtaris, and C. Kyriakakis, "Enhanced Multichannel Audio Resynthesis through Residual Processing and Features Alignment," in Proc. IEEE International Conference on Multimedia and Expo (ICME), Beijing, China, pp. 1267-1270.

T. Dutoit; A. Holzapfel; M. Jottrand; A. Moinet; J. Perez; Y. Stylianou, "TOWARDS A VOICE CONVERSION SYSTEM BASED ON FRAME SELECTION", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

C. Ghys, M.Taron, N. Paragios, N. Komodakis and B. Bascle, Expression Mimicking : from 2D Monocular Sequences to 3D Animations, International Symposium in Visual Computing. B. Glocker, N. Komodakis, N. Paragios, G. Tziritas and N. Navab, Primal/Dual Linear Programming and Statistical Atlases for Cartilage Segmentation, International Conference on Medical Image Computing and Computer Assisted Intervention, Paper.

B. Glocker, N. Komodakis, N. Paragios, G. Tziritas and N. Navab, Inter and Intra-Modal Deformable Registration: Continuous Deformations Meet Efficient Optimal Linear Programming, Information Processing in Medical Imaging, Paper

(Erbsmann prize for the best oral presentation among all first-time presenters). I. Grinias and G. Tziritas, Foreground Object Localization Using a Flooding Algorithm based on Inter-frame Change and Colour, IEEE International Conference on Advanced Video and Signal based Surveillance, Paper.

I. Grinias, N. Komodakis and G. Tziritas, Bayesian region growing and MRF-based minimization for texture and colour segmentation, Intern. Workshop on Image Analysis for Multimedia Interactive Services, Paper.

A. Holzapfel; Y. Stylianou, "A STATISTICAL APPROACH TO MUSICAL GENRE CLASSIFICATION USING NON-NEGATIVE MATRIX FACTORIZATION", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

A. Holzapfel; Y. Stylianou, "SINGER IDENTIFICATION IN REMBETIKO MUSIC",Sound and Music Computing Conference (SMC), Paper , Dataset , bibtex

E. Kokinou, C. Panagiotakis, F. Vallianatos, Earthquake/Noise Discrimination and estimation of P-S phases based on Wave Characteristics, Bulletin of the Geological Society of Greece, Proc. of the 11th International Congress.

E. Kokinou, C. Panagiotakis, F. Vallianatos, Seismic phase picking based on wave characteristics, Conference European Geosciences Union.

N. Komodakis, N. Paragios and G. Tziritas, MRF Optimization via Dual Decomposition: Message-Passing Revisited, IEEE Intern. Conf. on Computer Vision, Paper.

N. Komodakis, G. Tziritas and N. Paragios, Fast, approximately optimal solutions for single and dynamic MRFs, Intern. Conf. on Computer Vision and Pattern Recognition, Paper.

Markaki M., Wohlmayr M. and Stylianou Y., "Speech - Nonspeech Discrimination using the Information Bottleneck Method and Spectro-Temporal Modulation Index", Proceedings of InterSpeech ICSLP, Antwerp, Belgium, August 2007, Paper

Markaki M., Karpov A., Apostolopoulos E., Astrinaki M., Stylianou Y. and Ronzhin A., "A Hybrid System for Audio Segmentation and Speech-endpoint Detection of Broadcast News", Proceedings of SPECOM, Moscow, Russia, October 2007, Paper

Athanasios Mouchtaris, Yannis Agiomyrgiannakis and Yannis Stylianou, "Conditional Vector Quantization For Voice Conversion", IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2007, Hawai, USA 2007

C. Panagiotakis, I. Grinias and G. Tziritas, MINMAX Video Summarization under Equality Principle, IEEE Intern. Workshop on Multimedia Signal Processing, Paper.

C. Panagiotakis, E. Ramasso, G. Tziritas, D. Pellerin and M. Rombaut, Automatic People Detection and Counting for Athletic Videos Classification, IEEE International Conference on Advanced Video and Signal based Surveillance, Paper.

C. Panagiotakis, A. Doulamis and G. Tziritas, Equivalent key frames selection based on iso-content distance and iso-distortion principles, Intern. Workshop on Image Analysis for Multimedia Interactive Services, Paper.

H. Stefanou, T. Margaritis, D. Kafetzopoulos, K. Marias, and P. Tsakalides, "Microarray Image Denoising Using a Two-Stage Multiresolution Technique," in Proc. 2007 International Conference on Bioinformatics and Biomedicine (BIBM '07), Silicon Valley, CA,

C. Tzagkarakis, A. Mouchtaris, and P. Tsakalides, "Modeling Spot Microphone Signals using the Sinusoidal Plus Noise Approach," in Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, NY.

C. Tzagkarakis, A. Mouchtaris, and P. Tsakalides, "Sinusoidal Modeling of Spot Microphone Signals Based on Noise Transplantation for Multichannel Audio Coding," in Proc. 15th European Signal Processing Conference (EUSIPCO '07), Poznan, Poland.

G. Tzagkarakis, M. Papadopouli, and P. Tsakalides, "Singular Spectrum Analysis of Traffic Workload in a Large-Scale Wireless LAN," in Proc. 10-th ACM/IEEE Intern. Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM '07), Chania, Greece,

M. Vasilakis; Y. Stylianou, "A mathematical model for accurate measurement of jitter", MAVEBA 2007

Wohlmayr M., Markaki M. and Stylianou Y., "Speech - Nonspeech Discrimination based on Speech-relevant Spectrogram Modulations", Proceedings of EUSIPCO, Poznan, Poland, September 2007, Paper

2006

Journals

A. Mouchtaris, J. Van der Spiegel, and P. Mueller, "Non-Parallel Training for Voice Conversion Based on a Parameter Adaptation Approach", in IEEE Trans. Audio, Speech and Language Processing, vol. 14, no. 3, pp. 952-963, Paper.

C. Panagiotakis and G. Tziritas, "Snake terrestrial locomotion synthesis in 3D virtual environments", Visual Computer, Vol. 22, No 8, pp. 562-576, Paper .

M. I. Taroudakis, G. Tzagkarakis, and P. Tsakalides, "Classification of Shallow-Water Acoustic Signals via Alpha-Stable Modeling of the One-Dimensional Wavelet Coefficients," Journal of the Acoustical Society of America, , vol. 119, no. 3, pp. 1396-1405.

G. Tzagkarakis, B. Beferull-Lozano, and P. Tsakalides, "Rotation-Invariant Texture Retrieval with Gaussianized Steerable Pyramids," IEEE Transactions on Image Processing, vol. 15, no. 9, pp. 2702-2718.

Kandia Varvara and Yannis Stylianou, "Detection of sperm whale clicks based on the Teager-Kaiser Energy Operator", Applied Acoustics N.67 pp 1144-1163

Conferences

A. Doulamis and G. Tziritas, Adaptable Neural Networks for Content-based Video Adaptation in Low/Variable Bandwidth Communication Networks, International Joint Conference on Neural Networks, Paper .

Ê. Flouri, B. Beferull-Lozano, and P. Tsakalides, "Training a SVM-based Classifier in Distributed Sensor Networks," in Proc. 14nd European Signal Processing Conference (EUSIPCO '06), Florence, Italy.

Ê. Flouri, B. Beferull-Lozano, and P. Tsakalides, "Energy-Efficient Distributed Support Vector Machines for Wireless Sensor Networks," in Proc. 2006 European Workshop on Wireless Sensor Networks (EWSN '06), Zurich, Switzerland.

I. Grinias and G. Tziritas, Bayesian High Priority Region Growing for Change Detection, European Signal Processing Conference, Paper .

K. Karadimou, A. Mouchtaris, and P. Tsakalides, "Packet Loss Concealment for Multichannel Audio Using the Multiband Source/Filter Model," in Proc. Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, pp. 1105-1109.

N. Komodakis and G. Tziritas, "Image Completion Using Global Optimization", Intern. Conf. on Computer Vision and Pattern Recognition, Paper .

A. Mouchtaris, K. Karadimou, and P. Tsakalides, "Multiband Source/Filter Representation of Multichannel Audio for Reduction of Inter-channel Redundancy," in Proc. 14th European Signal Processing Conference (EUSIPCO), Florence, Italy, Paper 0243.

C. Panagiotakis, E. Ramasso, G. Tziritas, D. Pellerin and M. Rombaut, "Shape-Motion Based Athlete Tracking for Multilevel Action Recognition", Intern. Conf. on Articulated Motion and Deformable Objects, Paper .

C. Panagiotakis, I. Grinias and G. Tziritas, Automatic Human Motion Analysis and Action Recognition in Athletics Videos, European Signal Processing Conference, Paper .

C. Panagiotakis, G. Georgakopoulos and G. Tziritas, On the Curve Equipartition Problem: a brief exposition of basic issues, European Workshop on Computational Geometry, Paper .

C. Tzagkarakis, A. Mouchtaris, and P. Tsakalides, "Musical Genre Classification via Generalized Gaussian and Alpha-Stable Modeling," in Proc. International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Toulouse, France, pp. V-217-V.220.

Kandia Varvara and Yannis Stylianou, "Accurate TDOA using the Teager-Kaiser Energy Operator", 26th Conference of the European Cetacean Society, Kdynia, Poland

Miltos Vassilakis, Yannis Agiomyrgiannakis and Yannis Stylianou, "Fast Analysis/Synthesis of Harmonic Signals" IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Toulouse, France 2006

2005

Book Chapters

Y. Pantazis; Y. Stylianou, "Non linear approaches to the detection of discontinuities in concatenative speech synthesis", Chapter in Nonlinear Speech Modeling and Applications, Springer-Verlag, pp. 375-383 Eds. G. Chellot, A. Esposito, M. Faundez, M, Marinaro

Y. Stylianou, "Modeling Speech based on Harmonic plus Noise Models", Invited Chapter in Nonlinear Speech Modeling and Applications, Springer-Verlag, pp 244-260 Eds. G. Chellot, A. Esposito, M. Faundez, M, Marinaro

Journals

Á. Briassouli, P. Tsakalides, and A. Stouraitis, "Hidden Messages in Heavy-Tails: DCT-Domain Watermark Detection Using Alpha-Stable Models," IEEE Transactions on Multimedia, vol. 7, no. 4, pp. 700-715.

N. Komodakis, C. Panagiotakis and G. Tziritas, 3D visual reconstruction of large scale natural sites and their fauna,
Signal Processing: Image Communication, Vol. 20, No. 9-10, pp. 869-890.

A. Mouchtaris, S. S. Narayanan, and C. Kyriakakis, “Multichannel Audio Synthesis by Subband-Based Spectral Conversion and Parameter Adaptation”, IEEE Transactions on Speech and Audio, vol. 13, no. 2, , Paper .

C. Panagiotakis and G. Tziritas, A speech/music discriminator based on RMS and zero-crossings,
IEEE Transactions on Multimedia, Vol. 7, No. 1, pp. 155-166.

Conferences

Yannis Agiomirgiannakis and Yannis Stylianou, "Coding with Side Information techniques for LSF reconstruction in Voice Over IP", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) , Philadelphia, PA, USA 2005

D. Cantzos, A. Mouchtaris, and C. Kyriakakis, "Multichannel Audio Resynthesis Based on a Generalized Gaussian Mixture Model and Cepstral Smoothing," in Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), pp. 215-218.

I. Grinias and G. Tziritas, Region-level moving object segmentation by graph labeling,
European Signal Processing Conference.

K. Karadimou, A. Mouchtaris, and P. Tsakalides, "Multichannel Audio Modeling and Coding Using a Multiband Source/Filter Model," in Proc. 39th Asilomar Conference on Signals, Systems& Computers, Pacific Grove, CA, pp. 907-911.

N. Komodakis and G. Tziritas, A New Framework for Approximate Labeling via Graph Cuts,
IEEE Intern. Conf. on Computer Vision.

A. Mouchtaris, Y. Cao, S. Khan, J. Van der Spiegel, and P. Mueller, "Combined Software/Hardware Implementation of a Filterbank Front-End for Speech Recognition," in Proc. IEEE Workshop on Signal Processing Systems (SIPS), pp. 436-441.

A. Mouchtaris, J. Van der Spiegel, P. Mueller, and P. Tsakalides, "A Spectral Conversion Approach to Feature Denoising and Speech Enhancement," in Proc. 9th European Conference on Speech Communication and Technology (EUROSPEECH), Lisbon, Portugal, pp. 2057-2060.

Y. Pantazis Y. Stylianou and E. Klabbers, "DISCONTINUITY DETECTION IN CONCATENATED SPEECH SYNTHESIS BASED ON NONLINEAR SPEECH ANALYSIS", INTERSPEECH 2005, Paper

Yannis Pantazis and Yannis Stylianou, "REVIEW IN THE DETECTION OF DISCONTINUITIES IN CONCATENATIVE SPEECH SYNTHESIS", Workshop on Nonlinear Speech Processing (WNSP'05), p. 89-100, Paper

E. Ramasso, D. Pellerin, C. Panagiotakis, M. Rombaut, G. Tziritas and W. Lim,
Spatiotemporal information fusion for human action recognition in videos,
European Signal Processing Conference.

M. I. Taroudakis, G. Tzagkarakis, and P. Tsakalides, "Characterization of an Underwater Acoustic Signal Using the Statistics of the Wavelet Subband Coefficients," in Proc. 7th International Conference on Theoretical and Computational Acoustics, Hangz-hou, Zhejiand, China.

G. Tzagkarakis, B. Beferull-Lozano, and P. Tsakalides, "Rotation-Invariant Texture Retrieval with Gaussianized Steerable Pyramids," in Proc. 2005 International Conference on Acoustics, Speech, and Signal Processing (ICASSP '05), Philadelphia, PA.

Kandia Varvara and Yannis Stylianou, "Detection of Creak Clicks of Sperm Whales in Low SNR conditions", Proc. IEEE Oceans 2005, Brest, France

Kandia Varvara and Yannis Stylianou, "Detection of Sperm Whales Clicks based on the Teager Kaiser Energy Operator", 2nd Int. Workshop on Detection and Localization of Marine Mammals using Passive Acoustics, Monaco 2005

2004

Journals

C. Garcia and M. Delakis, Convolutional Face Finder: A Neural Architecture for Fast and Robust Face Detection,
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 26, pp. 1408-1423.

S. Liapis and G. Tziritas, Colour and texture image retrieval using chromaticity histograms and wavelet frames,
IEEE Transactions on Multimedia, Vol. 6, No. 5, pp. 676-686.

S. Liapis, E. Sifakis, and G. Tziritas, Colour and texture segmentation using wavelet frame analysis, deterministic relaxation and fast marching algorithms,
Journal of Visual Communication and Image Representation, Vol. 15, No. 1, pp. 1-26.

M. Rupi, P. Tsakalides, E. Del Re, and C. L. Nikias, "Constant Modulus Blind Equalization Based on Fractional Lower-Order Statistics," Signal Processing, vol. 84, no. 5, pp. 881-894,

Conferences

A. Achim, A. Bezerianos, P. Tsakalides, C. Ozturk, and A. Ademoglu, "Initialization of an Active Contour Algorithm for MRI using Bayesian Wavelet Shrinkage and Multiscale Products," in Proc. 4th European Symposium on Biomedical Engineering, Patras, Greece.

Yannis Agiomirgiannakis and Yannis Stylianou, "Combined Estimation/Coding of Highband Spectral Envcelopes For Speech Spectrum Expansion" IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Montreal Quebec, Canada 2004

N. Komodakis, G. Pagonis and G. Tziritas, Interactive walkthroughs using morphable 3D-mosaics,
2nd Intern. Symposium on 3D Data Processing, Visualization and Transmission.

A. Mouchtaris, J. Van der Spiegel, and P. Mueller, "A Spectral Conversion Approach to the Iterative Wiener Filter for Speech Enhancement," in Proc. IEEE International Conference on Multimedia and Expo (ICME), Taipei, Taiwan.

A. Mouchtaris, J. Van der Spiegel, and P. Mueller, "Non-Parallel Training for Voice Conversion by Maximum Likelihood Constrained Adaptation," in Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Montreal, Canada, vol. 1, pp. 1-4.

C. Panagiotakis and G. Tziritas, Recognition and Tracking of the Members of a Moving Human Body,
3rd Intern. Workshop on Articulated Motion and Deformable Objects.

C. Panagiotakis and G. Tziritas, Construction of Animal Models and Motion Synthesis in 3D Virtual Environments using Image Sequences,
2nd Intern. Symposium on 3D Data Processing, Visualization and Transmission.

Yannis Pantazis and Yannis Stylianou, "NON LINEAR SPEECH FEATURES FOR THE OBJECTIVE DETECTION OF DISCONTINUITIES IN CONCATENATIVE SPEECH SYNTHESIS", Workshop on Nonlinear Speech Processing (WNSP'04), p. 373-383, Paper

G. Tzagkarakis, B. Beferull-Lozano, and P. Tsakalides, "Sub-Gaussian Rotation-Invariant Features for Steerable Wavelet-Based Image Retrieval," in Proc. 38nd Annual Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA,

G. Tzagkarakis and P. Tsakalides, "A Statistical Approach to Texture Image Retrieval via Alpha-Stable Modeling of Wavelet Decompositions," in Proc. 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS '04), Lisbon, Portugal.

2003

Journals

A. Achim, P. Tsakalides, and A. Bezerianos, "SAR Image Denoising via Bayesian Wavelet Shrinkage based on Heavy-Tailed Modeling," IEEE Transactions on Geoscience and Remote Sensing, vol. 41, no. 8, pp. 1773-1784.

P. Daras, I. Kompatsiaris, I. Grinias, G. Akrivas, G. Tziritas, S. Kollias, and M. Strintzis,
MPEG-4 Authoring Tool using Moving Object Segmentation and Tracking in Video Shots,
EURASIP Journal on Applied Signal Processing, Vol. 2003, No. 9, pp. 861-877.

M. Traka and G. Tziritas, Panoramic view construction, Signal Processing: Image Communication, Vol. 18, No. 6, pp. 465-481.

Conferences

C. Garcia and M. Delakis, Training Convolutional Filters for Robust Face Detection,
Proc. of the IEEE International Workshop of Neural Networks for Signal Processing.

E. Sifakis and G. Tziritas, Robust object boundary determination using a locally adaptive level set algorithm,
IEEE Intern. Conf. on Image Processing.

2002

Journals

C. Garcia and G. Tziritas, Optimal projection of 2-D displacements for 3-D translational motion estimation,
Image and Vision Computing, Vol. 20, No. 11, pp. 793-804.

E. Sifakis, I. Grinias, and G. Tziritas, Video segmentation using fast marching and region growing algorithms,
EURASIP Journal on Applied Signal Processing, pp. 379-388.

E. Sifakis, C. Garcia, and G. Tziritas, Bayesian level sets for image segmentation,
Visual Communication and Image Representation, Vol. 13, No. 1/2, pp. 44-64.

Conferences

M. Delakis Gnd C.arcia, Robust Face Detection based on Convolutional Neural Networks,
Proc. 2nd Hellenic Conference on Artificial Intelligence.

A. Demiris, Garcia C., Malerczyk C., Klein K., Walczak K., Kerbiriou P., Bouville C., Traka M., Reusens E., Boyle E., Wingbermuhle J., Ioannidis N.,
Sprinting Along with the Olympic Champions: Personalized, Interactive Broadcasting using Mixed Reality Techniques and MPEG-4,
Proc. 5th International Conference on Business Information Systems.

C. Garcia and M. Delakis, A Neural Architecture for Fast and Robust Face Detection, International Conference on Pattern Recognition.

I. Grinias and G. Tziritas, Robust pan, tilt and zoom estimation, Intern. Conference on Digital Signal Processing.

C. Panagiotakis and G. Tziritas, A Speech/Music Discriminator using RMS and Zero-crossings,
European Signal Processing Conference.

2001

Journals

I. Grinias and G. Tziritas, A semi-automatic seeded region growing algorithm for video object localization and tracking,
Signal Processing: Image Communication, Vol. 16, No. 10, pp. 977-986.

E. Sifakis and G. Tziritas, Moving object localisation using a multi-label fast marching algorithm,
Signal Processing: Image Communication, Vol. 16, No. 10, pp. 963-976.

Conferences

E. Boyle, Curran T., Demiris A., Klein K., Garcia C., Malerczyk C., Bouville C., The creation of MPEG-4 content and its delivery over DVB infrastructure,
Proc. of the 1st Joint IEI/IEE Symposium on Telecommunications Systems Research.

A. Demiris, Diamantakos G., Walczak K., Reusens E., Kerbiriou P., Klein K., Garcia C., Marchal I., Wingbermuhle J., Boyle E., Cellary W., Ioannidis N.,
PISTE: Mixed Reality for Sports TV, Intern. Workshop on Very Low Bitrate Video Coding, Oct.

A.M. Demiris, M. Traka, E. Reusens, K. Walczak, C. Garcia, K. Klein, C. Malerczyk, P. Kerbiriou, C. Bouville, E. Boyle, N. Ioannidis,
Enhanced sports broadcasting by means of augmented reality in MPEG-4,
Intern. Conf. on Augmented, Virtual Environments and 3D Imaging.

C. Garcia, G. Simantiris, and G. Tziritas, A feature-based face detector using wavelet frames,
Intern. Workshop on Very Low Bitrate Video Coding.

C. Garcia and G. Tziritas, 3-D translational motion estimation from 2-D displacements,
IEEE Intern. Conf. on Image Processing.

I. Grinias, Y. Mavrikakis, and G. Tziritas, Region growing colour image segmentation applied to face detection,
Intern. Workshop on Very Low Bitrate Video Coding.

E. Sifakis, I. Grinias, and G. Tziritas, Video segmentation using fast marching and region growing algorithms,
3rd European Workshop on Image Analysis for Multimedia Interactive Services.

2000

Journals

C. Garcia, G. Zikos, and G. Tziritas, Wavelet packet analysis for face recognition,
Image and Vision Computing, Vol. 18, No. 4, pp.289-297, March 2000.

Conferences

C. Garcia and X. Apostolidis, Text Detection and Segmentation in Complex Color Images,
IEEE Intern. Conf. on Acoustics, Speech and Signal Processing.

S. Liapis and G. Tziritas, Image retrieval by color and texture using chromaticity histograms and wavelet frames,
Intern. Conf. on Visual Information and Information Systems.

S. Liapis, E. Sifakis and G. Tziritas, Color and/or Texture Segmentation using Deterministic Relaxation and Fast Marching Algorithms,
Intern. Conf. on Pattern Recognition, Vol. 3, pp. 621-624.

R. Ronfard, Garcia C., Carrive J., Conceptual Indexing of Television Images Based on Face and Caption Sizes and Locations,
Intern. Conf. on Visual Information and Information Systems.