Butterfly orthogonal structure for fast transforms, filter banks and wavelets. - Andrzej Drygajlo (ICASSP, 1992)

Multiresolution time-sequency speech processing based on orthogonal wavelet packet pulse forms. - Andrzej Drygajlo (EUROSPEECH, 1993)

Fast short-time orthogonal wavelet packet transform algorithms. - Benito Carnero; Andrzej Drygajlo (ICASSP, 1995)

Multiresolution speech analysis using fast time-varying orthogonal wavelet packet transform algorithms. - Andrzej Drygajlo; Nicolas Thevoz (EUROSPEECH, 1995)

Robust speech recognition in noise using speech enhancement based on masking properties of the auditory system and adaptive HMM. - Andrzej Drygajlo; Nathalie Virag; Gregoire Cosendai (EUROSPEECH, 1995)

Perceptual coding of speech using a fast wavelet packet transform algorithm. - Benito Carnero; Andrzej Drygajlo (EUSIPCO, 1996)

New fast wavelet packet transform algorithms for frame synchronized speech processing. - Andrzej Drygajlo (ICSLP, 1996)

Perceptual speech coding using time and frequency masking constraints. - Benito Carnero; Andrzej Drygajlo (ICASSP, 1997)

Integrated speech enhancement and coding in the time-frequency domain. - Andrzej Drygajlo; Benito Carnero (ICASSP, 1997)

Securized flexible vocabulary voice messaging system on unix workstation with ISDN connection. - Philippe Renevey; Andrzej Drygajlo (EUROSPEECH, 1997)

Spectral subtraction and missing feature modeling for speaker verification. - Andrzej Drygajlo; Mounir El-Maliki (EUSIPCO, 1998)

Wavelet transform based coherence function for multi-channel speech enhancement. - Djamila Mahmoudi; Andrzej Drygajlo (EUSIPCO, 1998)

Speaker verification in noisy environments with combined spectral subtraction and missing feature theory. - Andrzej Drygajlo; Mounir El-Maliki (ICASSP, 1998)

Combined Wiener and coherence filtering in wavelet domain for microphone array speech enhancement. - Djamila Mahmoudi; Andrzej Drygajlo (ICASSP, 1998)

Javaspeechlab - interactive speech analysis laboratory on the world-wide web. - Andrzej Drygajlo; Guy Delafontaine (EUROSPEECH, 1999)

Missing features detection and handling for robust speaker verification. - Mounir El-Maliki; Andrzej Drygajlo (EUROSPEECH, 1999)

Missing feature theory and probabilistic estimation of clean speech components for robust speech recognition. - Philippe Renevey; Andrzej Drygajlo (EUROSPEECH, 1999)

Perceptual speech coding and enhancement using frame-synchronized fast wavelet packet transform algorithms. - Benito Carnero; Andrzej Drygajlo (IEEE Trans. Signal Process., 1999)

Robust phase shift estimation in noise for microphone arrays with virtual sensors. - Mijail Arcienega; Andrzej Drygajlo; Joseph Malsano (EUSIPCO, 2000)

Introduction of a reliability measure in missing data approach for robust speech recognition. - Philippe Renevey; Andrzej Drygajlo (EUSIPCO, 2000)

Statistical estimation of unreliable features for robust speech recognition. - Philippe Renevey; Andrzej Drygajlo (ICASSP, 2000)

Pitch-dependent GMMs for text-independent speaker recognition systems. - Mijail Arcienega; Andrzej Drygajlo (INTERSPEECH, 2001)

Javaspeakerrecognition - interactive workbench for visualizing speaker recognition concepts on the WWW. - Andrzej Drygajlo; Gary Garcia Molina (INTERSPEECH, 2001)

Entropy based voice activity detection in very noisy conditions. - Philippe Renevey; Andrzej Drygajlo (INTERSPEECH, 2001)

Integration and imputation methods for unreliable feature compensation in GMM based speaker verification. - Andrzej Drygajlo; Mounir El-Maliki (Odyssey, 2001)

Forensic speaker recognition based on a Bayesian framework and Gaussian mixture modelling (GMM). - Didier Meuwly; Andrzej Drygajlo (Odyssey, 2001)

Robust voiced-unvoiced decision associated to continuous pitch tracking in noisy telephone speech. - Mijail Arcienega; Andrzej Drygajlo (INTERSPEECH, 2002)

Voice enabled interface for interactive tour-guide robots. - Plamen J. Prodanov; Andrzej Drygajlo; Guy Ramel; Mathieu Meisser; Roland Siegwart (IROS, 2002)

A Bayesian Network Approach for Combining Pitch and Reliable Spectral Envelope Features for Robust Speaker Verification. - Mijail Arcienega; Andrzej Drygajlo (AVBPA, 2003)

On the number of Gaussian components in a mixture: an application to speaker verification tasks. - Mijail Arcienega; Andrzej Drygajlo (INTERSPEECH, 2003)

Statistical methods and Bayesian interpretation of evidence in forensic automatic speaker recognition. - Andrzej Drygajlo; Didier Meuwly; Anil Alexander (INTERSPEECH, 2003)

Bayesian networks for spoken dialogue management in multimodal systems of tour-guide robots. - Plamen J. Prodanov; Andrzej Drygajlo (INTERSPEECH, 2003)

Multimodal interaction management for tour-guide robots using Bayesian networks. - Plamen J. Prodanov; Andrzej Drygajlo (IROS, 2003)

Gaussian Mixture Models for on-line signature verification. - Jonas Richiardi; Andrzej Drygajlo (WBMA@MM, 2003)

On developing a voice-enabled interface for interactive tour-guide robots. - Andrzej Drygajlo; Plamen J. Prodanov; Guy Ramel; Mathieu Meisser; Roland Siegwart (Adv. Robotics, 2003)

Study of the Distinctiveness of Level 2 and Level 3 Features in Fragmentary Fingerprint Comparison. - Krzysztof Kryszczuk; Patrice Morier; Andrzej Drygajlo (ECCV Workshop BioAW, 2004)

Scoring and direct methods for the interpretation of evidence in forensic speaker recognition. - Anil Alexander; Andrzej Drygajlo (INTERSPEECH, 2004)

Bayesian networks for error handling through multimodality fusion in spoken dialogues with mobile robots. - Plamen J. Prodanov; Andrzej Drygajlo (SAPA@INTERSPEECH, 2004)

Handling mismatch in corpus-based forensic speaker recognition. - Anil Alexander; Filippo Botti; Andrzej Drygajlo (Odyssey, 2004)

An interpretation framework for the evaluation of evidence in forensic automatic speaker recognition with limited suspect data. - Filippo Botti; Anil Alexander; Andrzej Drygajlo (Odyssey, 2004)

Addressing the Vulnerabilities of Likelihood-Ratio-Based Face Verification. - Krzysztof Kryszczuk; Andrzej Drygajlo (AVBPA, 2005)

Error handling in multimodal biometric systems using reliability measures. - Krzysztof Kryszczuk; Jonas Richiardi; Plamen J. Prodanov; Andrzej Drygajlo (EUSIPCO, 2005)

A probabilistic measure of modality reliability in speaker verification. - Jonas Richiardi; Plamen J. Prodanov; Andrzej Drygajlo (ICASSP (1), 2005)

Local and Global Feature Selection for On-line Signature Verification. - Jonas Richiardi; Hamed Ketabdar; Andrzej Drygajlo (ICDAR, 2005)

Decision Networks for Repair Strategies in Speech-Based Interaction with Mobile Tour-Guide Robots. - Plamen J. Prodanov; Andrzej Drygajlo (ICRA, 2005)

A Bayesian network approach combining pitch and spectral envelope features to reduce channel mismatch in speaker verification and forensic speaker recognition. - Mijail Arcienega; Anil Alexander; Philipp Zimmermann; Andrzej Drygajlo (INTERSPEECH, 2005)

Bayesian networks based multi-modality fusion for error handling in human-robot dialogues under noisy conditions. - Plamen J. Prodanov; Andrzej Drygajlo (Speech Commun., 2005)

Robots meet Humans-interaction in public spaces. - Björn Jensen; Nicola Tomatis; Laetitia Mayor; Andrzej Drygajlo; Roland Siegwart (IEEE Trans. Ind. Electron., 2005)

On combining evidence for reliability estimation in face verification. - Krzysztof Kryszczuk; Andrzej Drygajlo (EUSIPCO, 2006)

Speaker Verification with Confidence and Reliability Measures. - Jonas Richiardi; Plamen J. Prodanov; Andrzej Drygajlo (ICASSP (1), 2006)

Singular point detection in fingerprints using quadrant change information. - Krzysztof Kryszczuk; Andrzej Drygajlo (ICPR (4), 2006)

Robust estimation, interpretation and assessment of likelihood ratios in forensic speaker recognition. - Joaquin Gonzalez-Rodriguez; Andrzej Drygajlo; Daniel Ramos 001; Marta Garcia-Gomar; Javier Ortega-Garcia (Comput. Speech Lang., 2006)

Confidence and reliability measures in speaker verification. - Jonas Richiardi; Andrzej Drygajlo; Plamen J. Prodanov (J. Frankl. Inst., 2006)

Multimodal Biometrics for Identity Documents and Smart Cards: European challenge. - Andrzej Drygajlo (EUSIPCO, 2007)

Quality measures in unimodal and multimodal biometric verification. - Jonas Richiardi; Krzysztof Kryszczuk; Andrzej Drygajlo (EUSIPCO, 2007)

Improving Classification with Class-Independent Quality Measures: Q-stack in Face Verification. - Krzysztof Kryszczuk; Andrzej Drygajlo (ICB, 2007)

Q-stack: Uni- and Multimodal Classifier Stacking with Quality Measures. - Krzysztof Kryszczuk; Andrzej Drygajlo (MCS, 2007)

Reliability-Based Voting Schemes Using Modality-Independent Features in Multi-classifier Biometric Authentication. - Jonas Richiardi; Andrzej Drygajlo (MCS, 2007)

Reliability Estimation for Multimodal Error Prediction and Fusion. - Krzysztof Kryszczuk; Jonas Richiardi; Andrzej Drygajlo (PRIS, 2007)

Reliability-Based Decision Fusion in Multimodal Biometric Verification Systems. - Krzysztof Kryszczuk; Jonas Richiardi; Plamen J. Prodanov; Andrzej Drygajlo (EURASIP J. Adv. Signal Process., 2007)

Forensic Automatic Speaker Recognition [Exploratory DSP]. - Andrzej Drygajlo (IEEE Signal Process. Mag., 2007)

Biometrics for Identity Documents and Smart Cards: European Perspective. - Andrzej Drygajlo (BIOID, 2008)

On Quality of Quality Measures for Classification. - Krzysztof Kryszczuk; Andrzej Drygajlo (BIOID, 2008)

Promoting Diversity in Gaussian Mixture Ensembles: An Application to Signature Verification. - Jonas Richiardi; Andrzej Drygajlo; Laetitia Todesco (BIOID, 2008)

What do quality measures predict in biometrics? - Krzysztof Kryszczuk; Andrzej Drygajlo (EUSIPCO, 2008)

Impact of feature correlations on separation between bivariate normal distributions. - Krzysztof Kryszczuk; Andrzej Drygajlo (ICPR, 2008)

Evaluation of speech quality measures for the purpose of speaker verification. - Jonas Richiardi; Andrzej Drygajlo (Odyssey, 2008)

Low-level grounding in a multimodal mobile service robot conversational system using graphical models. - Plamen J. Prodanov; Andrzej Drygajlo; Jonas Richiardi; Anil Alexander (Intell. Serv. Robotics, 2008)

Credence estimation and error prediction in biometric identity verification. - Krzysztof Kryszczuk; Andrzej Drygajlo (Signal Process., 2008)

Verification of Aging Faces Using Local Ternary Patterns and Q-Stack Classifier. - Andrzej Drygajlo; Weifeng Li 001; Kewei Zhu (COST 2101/2102 Conference, 2009)

On Development of Inspection System for Biometric Passports Using Java. - Luis Terán; Andrzej Drygajlo (COST 2101/2102 Conference, 2009)

Q-stack aging model for face verification. - Andrzej Drygajlo; Weifeng Li 001; Kewei Zhu (EUSIPCO, 2009)

Static Models of Derivative-Coordinates Phase Spaces for Multivariate Time Series Classification: An Application to Signature Verification. - Jonas Richiardi; Krzysztof Kryszczuk; Andrzej Drygajlo (ICB, 2009)

Statistical Evaluation of Biometric Evidence in Forensic Automatic Speaker Recognition. - Andrzej Drygajlo (IWCF, 2009)

Voice, Forensic Evidence of. - Andrzej Drygajlo (Encyclopedia of Biometrics, 2009)

Aging face verification in score-age space using single reference image template. - Weifeng Li 001; Andrzej Drygajlo; Hui Qiu (BTAS, 2010)

Global and local feature based multi-classifier A-stack model for aging face identification. - Weifeng Li 001; Andrzej Drygajlo (ICIP, 2010)

Multi-classifier Q-stack Aging Model for Adult Face Verification. - Weifeng Li 001; Andrzej Drygajlo (ICPR, 2010)

Fully featured secure biometric smart card device for fingerprint-based authentication and identification. - Lionel Beaugé; Andrzej Drygajlo (MM&Sec, 2010)

The Multiscenario Multienvironment BioSecure Multimodal Database (BMDB). - Javier Ortega-Garcia; Julian Fiérrez; Fernando Alonso-Fernandez; Javier Galbally; Manuel R. Freire; Joaquin Gonzalez-Rodriguez; Carmen García-Mateo; José Luis Alba-Castro; Elisardo González-Agulla; Enrique Otero Muras; Sonia Garcia-Salicetti; Lorène Allano; et al. (IEEE Trans. Pattern Anal. Mach. Intell., 2010)

Biometrics for Identity Documents and Smart Cards: Lessons Learned. - Andrzej Drygajlo (BIOID, 2011)

Adult Face Recognition in Score-Age-Quality Classification Space. - Andrzej Drygajlo; Weifeng Li 001; Hui Qiu (BIOID, 2011)

Combination of age and head pose for adult face verification. - Weifeng Li 001; Andrzej Drygajlo; Hui Qiu (FG, 2011)

Palm vein recognition with Local Binary Patterns and Local Derivative Patterns. - Leila Mirmohamadsadeghi; Andrzej Drygajlo (IJCB, 2011)

Client-specific A-stack model for adult face verification across aging. - Andrzej Drygajlo; Weifeng Li 001 (Signal Image Video Process., 2011)

Introduction of cylinder quality measure into Minutia Cylinder-Code based fingerprint matching. - M. Hamed Izadi; Leila Mirmohamadsadeghi; Andrzej Drygajlo (BTAS, 2012)

Speaker verification with long-term ageing data. - Finnian Kelly; Andrzej Drygajlo; Naomi Harte (ICB, 2012)

A joint factor analysis model for handling mismatched recording conditions in forensic automatic speaker recognition. - Victor Alonso Moreno; Andrzej Drygajlo (ICB, 2012)

Compensating for Ageing and Quality variation in Speaker Verification. - Finnian Kelly; Andrzej Drygajlo; Naomi Harte (INTERSPEECH, 2012)

Embedding cylinder quality measures into minutia cylinder-code based latent fingerprint matching. - M. Hamed Izadi; Andrzej Drygajlo (MM&Sec, 2012)

A template privacy protection scheme for fingerprint minutiae descriptors. - Leila Mirmohamadsadeghi; Andrzej Drygajlo (BIOSIG, 2013)

Speaker verification in score-ageing-quality classification space. - Finnian Kelly; Andrzej Drygajlo; Naomi Harte (Comput. Speech Lang., 2013)

From Speaker Recognition to Forensic Speaker Recognition. - Andrzej Drygajlo (BIOMET, 2014)

Palm vein recognition with local texture patterns. - Leila Mirmohamadsadeghi; Andrzej Drygajlo (IET Biom., 2014)

Discarding low quality Minutia Cylinder-Code pairs for improved fingerprint comparison. - M. Hamed Izadi; Andrzej Drygajlo (BIOSIG, 2015)

How synthetic fingerprints can improve pre-selection of mcc pairs using local quality measures. - M. Hamed Izadi; Andrzej Drygajlo (IWBF, 2015)

Voice, Forensic Evidence of. - Andrzej Drygajlo (Encyclopedia of Biometrics, 2015)

Biometric Evidence in Forensic Automatic Speaker Recognition. - Andrzej Drygajlo; Rudolf Haraksim (Handbook of Biometrics for Forensic Science, 2017)

The Multiscenario Multienvironment BioSecure Multimodal Database (BMDB). - Javier Ortega-Garcia; Julian Fiérrez; Fernando Alonso-Fernandez; Javier Galbally; Manuel R. Freire; Joaquin Gonzalez-Rodriguez; Carmen García-Mateo; José Luis Alba-Castro; Elisardo González-Agulla; Enrique Otero Muras; Sonia Garcia-Salicetti; Lorène Allano; et al. (CoRR, 2021)