Fernando Manuel Santos Perdigao

Fernando Perdigão

Academic position:	Assistant Professor
Joining date:	01-01-1999
Roles in IT:	Senior Researcher
Thematic Line:	Information and Data Sciences
Group:	Multimedia Signal Processing – Co

Email: Send Email
Address: IT – Coimbra
Department of Electrical and Computer Engineering
University of Coimbra - Pole II
P-3030-290 COIMBRA
Tel: +351 239 796 236

Alternative Personal Web Page

https://www.orcid.org/0000-0002-8980-1992

By Authors
By Institutions

Scientific Achievements

Degrees

PhD, Universidade de Coimbra, 29-06-1998

Affiliations

Dep. Eng. Electrotécnica e Computadores, FCTUC, Univ. Coimbra, 30-06-1998, Prof. Auxiliar

Academic Activities

4Lecture courses

Processamento da Fala, Universidade de Coimbra, Doutoramento em Engenharia Electrotécnica e de Computadores

Processamento Digital de Sinal, Universidade de Coimbra, Mestrado em Engenharia Electrotécnica e de Computadores

Processamento de Sinal, Universidade de Coimbra, Licenciatura em Engenharia Electrotécnica e de Computadores

Sinais e Sistemas, Universidade de Coimbra, Licenciatura em Engenharia Electrotécnica e de Computadores

2Supervision of PhD theses

As Supervisor

Embedded features for speech and music analysis, PhD Student, Dirceu Gonzaga da Silva, Expected conclusion 12-2023
Automatic characterization of reading ability in children, PhD Student, Jorge Daniel Leonardo Proença, Defended 11-2018

11Supervision of MSc theses

As Supervisor

Banco de Filtros em Oitavas em Fingerprinting de Áudio, MSc Student, Rodrigo Micael Lopes Almeida, Concluded 09-2024
Query-by-Singing/Humming of musical works, MSc Student, Ana Corina Martins Calhau, Concluded 10-2021
Development of a system for cataract evaluation using ultrasound signals, MSc Student, Maria Carmo Lopes, Concluded 11-2020
Development of system for cataract classification and visualization in humans, MSc Student, Carlos Daniel Silva Pinto, Concluded 09-2019
Recognition of instruments in polyphonic music, MSc Student, Gonçalo Ferreira Ferrão Castel-branco, Concluded 09-2019
Real-Time Implementation of Automatic Assessment of Reading Ability of Children, MSc Student, David António Fonseca Almeida, Concluded 02-2018
Pseudo-word Generator for Linguistic Evaluation, MSc Student, Rui Pedro de Azevedo Venâncio, Concluded 02-2018
Phoneme recognition system for European Portuguese based on neural networks, MSc Student, Guilherme de Abreu Franco, Concluded 09-2016
System for Automatic Assessment of Reading Ability of Children, MSc Student, Hugo José de Sousa Ferreira, Concluded 09-2016
Speech Browsing, MSc Student, Luís Miguel Bagagem Castela, Concluded 09-2015

As Co-supervisor

Development of a medical ultrasound device for the detection and classification of cataracts in humans, MSc Student, Paulo Jorge Duarte Fernandes, Concluded 09-2019

Publications

1Books

S. Candeias, A. Veiga, F. Perdigão, Pronunciação de Verbos Portugueses - Guia Prático, LIDEL, Lisboa, 2015,
| BibTex

9Books Chapters

A. Veiga, D. Celorico, J. Proença, S. Candeias, F. Perdigão, Prosodic and Phonetic Features for Speaking Styles Classification and Detection, Chapter in, Advances in Speech and Language Technologies for Iberian Languages, D. Torre Toledano, A. Ortega Giménez, A. Teixeira, J. González Rodríguez, L. Hernández Gómez, R. San Segundo Hernández, and D. Ramos Castro, Springer, Madrid, 2012
A. Veiga, S. Candeias, D. Celorico, J. Proença, F. Perdigão, Towards Automatic Classification of Speech Styles, Chapter in, Computational Processing of the Portuguese Language, H. Caseli, A. Villavicencio, A. Teixeira, and F. Perdigão, Springer, Coimbra, 2012
C. Lopes, F. Perdigão, Phone Recognition on the TIMIT Database, Chapter in, Speech Technologies, Ivo Ipsic, In-Tech, Rijeka, 2011
S. Candeias, F. Perdigão, Integração Linguística em Sistemas de Conversão de Grafema para Fone(ma), Chapter in, Estudos de Linguística, Ana Luís, Imprensa da Universidade de Coimbra, Coimbra, 2011
S. Candeias, F. Perdigão, New Prototypes of Syllable Structure for Teaching/Learning Portuguese, Chapter in, Language, Learning and Teaching, Siu-Lun Lee & Victoria Tuzlukova, Academic Press, Athens, Greece, 2011
C. Lopes, A. Veiga, F. Perdigão, Automatic Phone Clustering based on Confusion Matrices, Chapter in, Computational Processing of the Portuguese Language, T. Pardo, A. Branco, A., R. Vieira and V. de Lima, Springer, 2010
S. Candeias, F. Perdigão, Conversor de grafemas para fones baseado em regras para português, Chapter in, Perspectivas sobre a Linguateca: 10 anos, Luís Costa, Diana Santos & Nuno Cardoso, Linguateca, Lisboa, 2008
C. Lopes, F. Perdigão, Event Detection by HMM, SVM and ANN: A Comparative Study, Chapter in, Computational Processing of the Portuguese Language, A. Teixeira, V. Lima, L. Oliveira, and P. Quaresma, Springer, 2008
S. Candeias, F. Perdigão, Aspectos da percepção de /v/ (/b/): contributo para o estudo translinguístico de processamento .es - .pt, Chapter in, Aula Ibérica, Á. M. Dios, Universidad de Salamanca, Salamanca, 2007

18Papers in Journals

F. Perdigão, Ultrasonic A-Scan Signals Data Augmentation Using Electromechanical System Modelling to Enhance Cataract Classification Methods, Electronics, Vol. 13, No. 21, pp. 4144 - 4144, October, 2024 | BibTex
L. I. Petrella, S. Nunes, F. Perdigão, M. Gomes, M Santos, C. Pinto, A.M.L.S.M. Morgado, A. T. Travassos, J Santos, L. Duarte, Feasibility assessment of the Eye Scan Ultrasound System for cataract characterization and optimal phacoemulsification energy estimation: protocol for a pilot, nonblinded and monocentre study, Pilot and Feasibility Studies, Vol. 8, No. 1, pp. 1 - 10, September, 2022,
| Abstract | Full text (PDF 1 MB) | BibTex
L. I. Petrella, F. Perdigão, L. Duarte, M Santos, M. Lopes, M. Gomes, J Santos, A-scan ultrasound in ophthalmology: A simulation tool, Medical Engineering and Physics, Vol. 97, No. -, pp. 18 - 24, November, 2021,
| Abstract | BibTex
G. Castel-branco, G. Falcão, F. Perdigão, PureMIC: A New Audio Dataset for the Classification of Musical Instruments based on Convolutional Neural Networks, Journal of Signal Processing Systems, Vol. 93, No. 9, pp. 977 - 987, April, 2021 | BibTex
L. I. Petrella, C. Pinto, M. Gomes, F. Perdigão, M Santos, S. Nunes, A.M.L.S.M. Morgado, M. C. Caixinha, J Santos, A-scan ultrasonic system for real time automatic cataract detection, Health and Technology, Vol. 10, No. -, pp. 1 - 7, June, 2020,
| Abstract | BibTex
L. I. Petrella, P. Fernandes, M Santos, M. C. Caixinha, S. Nunes, C. Pinto, A.M.L.S.M. Morgado, J Santos, M. Gomes, F. Perdigão, Safety Assessment of an A‐Scan Ultrasonic System for Ophthalmic Use, Journal of Ultrasound in Medicine, Vol. 39, No. 11, pp. 2143 - 2150, May, 2020 | Full text (PDF 402 KBs) | BibTex
J. Proença, C. Lopes, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Mispronunciation Detection in Children's Reading of Sentences, IEEE/ACM Transactions on Audio Speech and Language Processing, Vol. 26, No. 7, pp. 1207 - 1219, July, 2018 | BibTex
J. Tejedor, D. Toledano, P. Lopez-Otero, L. Docio-Fernandez, J. Proença, F. Perdigão, F. García-Granada, E. Sanchis, A. Pompili, Abad, A. Abad, ALBAYZIN Query-by-example Spoken Term Detection 2016 evaluation, Eurasip Journal on Audio, Speech, and Music Processing, Vol. 2018, No. 2, pp. 1 - 25, April, 2018 | BibTex
J. Proença, C. Lopes, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Automatic evaluation of reading aloud performance in children, Speech Communication, Vol. 94, No. -, pp. 1 - 14, November, 2017,
| Abstract | BibTex
M. C. Caixinha, J. Amaro, M Santos, F. Perdigão, M. Gomes, J Santos, In-vivo Automatic Nuclear Cataract Detection and Classification in an Animal Model by Ultrasounds, IEEE Transactions on Biomedical Engineering, Vol. 63, No. 11, pp. 2326 - 2335, November, 2016,
| Abstract | BibTex
A. Veiga, S. Candeias, F. Perdigão, Generating a pronunciation dictionary for European Portuguese using a joint-sequence model with embedded stress assignment, Journal of the Brazilian Computer Society, Vol. 19, No. 2, pp. 127 - 134, September, 2012,
| Abstract | BibTex
C. Lopes, F. Perdigão, Broad Phonetic Class Definition driven by Phone Confusions, Eurasip Journal on Advances in Signal Processing, Vol. 2012, No. 158, pp. - - -, July, 2012,
| Abstract | Full text (PDF 1 MB) | BibTex
A. Veiga, C. Lopes, D. Celorico, J. Proença, F. Perdigão, S. Candeias, O desafio da participação humana do IT-Coimbra no Págico, Linguamática, Vol. 4, No. 1, pp. 49 - 52, April, 2012 | BibTex
A. Veiga, S. Candeias, F. Perdigão, Conversão de Grafemas para Fonemas em Português Europeu - Abordagem Híbrida com Modelos Probabilísticos e Regras Fonológicas, Linguamática, Vol. 3, No. 2, pp. 39 - 51, December, 2011,
| Abstract | Full text (PDF 267 KBs) | BibTex
S. Candeias, F. Perdigão, Syllable structure in dysfunctional Portuguese children speech, Clinical Linguistics and Phonetics, Vol. 24, No. 11, pp. 883 - 889, October, 2010,
| Abstract | BibTex
C. Lopes, F. Perdigão, VTLN Through Frequency Warping Based on Pitch, Revista da Sociedade Brasileira de Telecomunicações, Vol. 18, No. 1, pp. 86 - 95, June, 2003 | BibTex
V. Silva, F. Perdigão, Generalising the simultaneous computation of the DFTs of two real sequences using a single N-point DFT, Signal Processing, Vol. 82, No. 3, pp. 503 - 505, March, 2002 | BibTex
S.M.M. Faria, P.A. Assunção, F. Perdigão, V. Silva, L. V. Sá, A parallel architecture for real-time video coding, Microprocessing and Microprogramming (EUROMICRO), Vol. 30, No. 1-5, pp. 439 - 445, August, 1990,
| Abstract | BibTex

85Papers in Conferences

M Santos, I. Conceição, L. I. Petrella, F. Perdigão, J Santos, L. Duarte, M. Gomes, A.M.L.S.M. Morgado, Modelling of an ultrasound-based system for cataract detection and classification, European Conference on Non-Destructive Testing ECNDT, Lisboa, Portugal, Vol., pp. -, July, 2023,
| Abstract | Full text (PDF 992 KBs) | BibTex
D. Henriques, M. Gomes, V. Silva, F. Perdigão, Deep Learning-based Demodulator for Magnitude Modulated Signals, IEEE Vehicular Technology Conference (VTC-Spring), Florence, Italy, Vol., pp. -, June, 2023,
| Abstract | Full text (PDF 1 MB) | BibTex
G. Castel-branco, G. Falcão, F. Perdigão, ENHANCING THE LABELLING OF AUDIO SAMPLES FOR AUTOMATIC INSTRUMENT CLASSIFICATION BASED ON NEURAL NETWORKS, IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP, Barcelona, Spain, May, 2020 | BibTex
L. I. Petrella, M. Gomes, F. Perdigão, M Santos, P. Fernandes, C. Pinto, J Santos, S. Nunes, A.M.L.S.M. Morgado, M. C. Caixinha, Eye Scan Ultrasound System for Automatic Cataract Detection: from a preclinical to a clinical prototype, Mediterranean Conference on Medical and Biological Engineering and Computing MEDICON, Coimbra, Portugal, Vol. -, pp. - - -, September, 2019,
| Abstract | BibTex
C. Pinto, P. Fernandes, M. C. Caixinha, S. Nunes, A.M.L.S.M. Morgado, M Santos, J Santos, L. I. Petrella, M. Gomes, F. Perdigão, Development of an API for a Human-Eye Scan Ultrasound System, Conf. on Telecommunications - ConfTele, Lisbon, Portugal, Vol. -, pp. - - -, June, 2019,
| Abstract | Full text (PDF 521 KBs) | BibTex
G. Assunção, F. Perdigão, P. Menezes, Premature Overspecialization in Emotion Recognition Systems, AES Audio Forensics, Porto, Portugal, June, 2019,
| Abstract | BibTex
G. Assunção, P. Menezes, F. Perdigão, Importance of speaker specific speech features for emotion recognition, Experiment Conference, Funchal, Portugal, June, 2019,
| Abstract | BibTex
J. Proença, C. Lopes, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Automatic Evaluation of Children Reading Aloud on Sentences and Pseudowords, ISCA - Conf. of the International Speech Communication Association - INTERSPEECH, Stockholm, Sweden, Vol., pp. 2749 - 2753, August, 2017 | BibTex
J. Proença, C. Lopes, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Detection of Mispronunciations and Disfluencies in Children Reading Aloud, ISCA - Conf. of the International Speech Communication Association - INTERSPEECH, Stockholm, Sweden, Vol., pp. 1437 - 1441, August, 2017 | BibTex
J. Proença, D. Celorico, C. Lopes, S. Candeias, F. Perdigão, Automatic Annotation of Disfluent Speech in Children's Reading Tasks, IX Jornadas en Tecnologías del Habla and V Iberian SLTech Workshop IberSPEECH 2016, Lisbon, Portugal, Vol. -, pp. 172 - 181, November, 2016,
| Abstract | BibTex
J. Proença, F. Perdigão, Segmented Dynamic Time Warping for Spoken Query-by-Example Search, ISCA - Conf. of the International Speech Communication Association - INTERSPEECH, San Francisco, United States, Vol. -, pp. 750 - 754, September, 2016 | BibTex
J. Proença, D. Celorico, C. Lopes, M. D. Dias, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Design and Analysis of a Database to Evaluate Children's Reading Aloud Performance, International Conf. on Computational Processing of Portuguese - PROPOR, Tomar, Portugal, Vol. -, pp. 385 - 395, July, 2016 | BibTex
J. Proença, D. Celorico, S. Candeias, C. Lopes, F. Perdigão, The LetsRead Corpus of Portuguese Children Reading Aloud for Performance Evaluation, ELRA International Conf. on Language Resources and Evaluation, - LREC, Portorož, Slovenia, Vol. 1, pp. 781 - 785, May, 2016 | BibTex
J. Proença, D. Celorico, S. Candeias, C. Lopes, F. Perdigão, Children’s Reading Aloud Performance: a Database and Automatic Detection of Disfluencies, ISCA - Conf. of the International Speech Communication Association - INTERSPEECH, Dresden, Germany, Vol. -, pp. 1655 - 1659, September, 2015,
| Abstract | BibTex
J. Proença, D. Celorico, S. Candeias, C. Lopes, A. Veiga, F. Perdigão, A Database of Children Reading Aloud for Reading Performance Evaluation, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. - - -, September, 2015,
| Abstract | Full text (PDF 735 KBs) | BibTex
J. Proença, O. C. Costa, D. Celorico, S. Candeias, F. Perdigão, Automatic Detection of Disfluencies in Children Reading Aloud Using Task Specific Lattices, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. - - -, September, 2015,
| Abstract | Full text (PDF 745 KBs) | BibTex
J. Proença, L. Castela, F. Perdigão, The SPL-IT-UC Query by Example Search on Speech system for MediaEval 2015, MediaEval, Wurzen, Germany, Vol. 1436, pp. - - -, September, 2015,
| Abstract | BibTex
J. Proença, A. Veiga, F. Perdigão, Query by Example Search with Segmented Dynamic Time Warping for Non-Exact Spoken Queries, European Signal Processing Conference EUSIPCO, Nice, France, Vol. -, pp. 1691 - 1695, August, 2015,
| Abstract | BibTex
M. C. Caixinha, E. V. Velte, M Santos, F. Perdigão, J. Amaro, M. Gomes, J Santos, Automatic Cataract Classification based on Ultrasound Techniques using Machine Learning: A comparative Study, International Congress on Ultrasonics - ICU, Metz, France, Vol. -, pp. - - -, May, 2015,
| Abstract | BibTex
J. Proença, A. Veiga, S. Candeias, J. Lemos, C. Januário, F. Perdigão, Characterizing Parkinson's Disease Speech by Acoustic and Phonetic Features, International Conf. on Computational Processing of Portuguese - PROPOR, São Carlos, Brazil, Vol. 8775, pp. 24 - 35, October, 2014,
| Abstract | BibTex
V. Marquiafável, C. Shulby, A. Veiga, J. Proença, S. Candeias, F. Perdigão, Rule-Based Algorithms for Automatic Pronunciation of Portuguese Verbal Inflections, International Conf. on Computational Processing of Portuguese - PROPOR, São Carlos, Brazil, Vol. 8775, pp. 36 - 47, October, 2014,
| Abstract | BibTex
A. Veiga, C. Lopes, L. V. Sá, F. Perdigão, Acoustic Similarity Scores for Keyword Spotting, International Conf. on Computational Processing of Portuguese - PROPOR, São Carlos, Brazil, Vol. 8775, pp. 48 - 58, October, 2014,
| Abstract | BibTex
J. Proença, A. Veiga, F. Perdigão, The SPL-IT Query by Example Search on Speech system for MediaEval 2014, MediaEval, Barcelona, Spain, Vol. 1263, pp. -- - --, October, 2014,
| Abstract | BibTex
A. Veiga, S. Candeias, F. Perdigão, Grafone - Online Grapheme to Phoneme Converter for European Portuguese, International Conf. on Computational Processing of Portuguese - PROPOR, São Carlos, Brazil, Vol. -, pp. - - -, October, 2014,
| Abstract | BibTex
G. Mendonça, S. Candeias, F. Perdigão, C. Shulby, R. Toniazzo, A. Klautau, S. M. Aluísio, A Method for the Extraction of Phonetically-Rich Triphone Sentences, International Telecommunications Symposium - ITC, São Paulo, Brazil, Vol. -, pp. -- - --, August, 2014 | BibTex
S. Candeias, D. Celorico, J. Proença, A. Veiga, C. Lopes, F. Perdigão, HESITA(te) in Portuguese, European Language Resources Association (ELRA) International Conference on Language Resources and Evaluation - LREC, Reykjavik, Iceland, Vol. --, pp. -- - --, May, 2014 | BibTex
S. Candeias, A. Veiga, F. Perdigão, Sistema automático de pronunciação de verbos, Brazilian Comput Soc Brazilian Symp. in Information and Human Language Technology - STIL, Fortaleza, Brazil, Vol. --, pp. -- - --, October, 2013 | BibTex
A. Veiga, J. Proença, S. Candeias, F. Perdigão, Acoustic Phonetic and Prosodic Features of Parkinson s Disease Speech, Brazilian Comput Soc Brazilian Symp. in Information and Human Language Technology - STIL, Fortaleza, Brazil, Vol. 1, pp. -- - --, October, 2013,
| Abstract | BibTex
S. Candeias, D. Celorico, J. Proença, A. Veiga, F. Perdigão, HESITA(tions) in Portuguese: a database, ISCA, Interspeech satellite workshop on Disfluency in Spontaneous Speech - DiSS, Stockholm, Sweden, Vol. --, pp. -- - --, August, 2013 | BibTex
D. Celorico, J. Proença, A. Veiga, S. Candeias, F. Perdigão, Acoustical Characterization of Vocalic Fillers in European Portuguese, ISCA, Interspeech satellite workshop on Disfluency in Spontaneous Speech - DiSS, Stockholm, Sweden, Vol. 54(1), pp. 63 - 66, August, 2013,
| Abstract | BibTex
S. Candeias, J. Proença, A. Veiga, F. Perdigão, On the influence of the Parkinson disease in vowel production, Phonetics and Phonology in Iberia - PaPI, Lisbon, Portugal, Vol. --, pp. -- - --, June, 2013 | BibTex
A. Veiga, S. Candeias, F. Perdigão, Developing a Hybrid Grapheme to Phoneme Converter for European Portuguese, Conf. on Telecommunications - ConfTele, Castelo Branco, Portugal, Vol. 1, pp. 297 - 300, May, 2013,
| Abstract | BibTex
S. Candeias, D. Celorico, J. Proença, A. Veiga, F. Perdigão, Automatically distinguishing styles of speech, Conf. on Telecommunications - ConfTele, Castelo Branco, Portugal, Vol. 1, pp. 77 - 80, May, 2013 | BibTex
A. Veiga, J. Proença, D. Celorico, S. Candeias, F. Perdigão, Vocalic Filler Characterization using Acoustical Properties Derived from Cepstrum, Jornadas en Tecnología del Habla and III Iberian SLTech Workshop - IberSPEECH, Madrid, Spain, Vol. -, pp. 260 - 268, November, 2012,
| Abstract | Full text (PDF 130 KBs) | BibTex
Â. T. Teixeira, C. Lopes, F. Perdigão, Detection of Children Speech Disfluency, Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. - - -, October, 2012,
| Abstract | BibTex
S. Candeias, A. Veiga, D. Celorico, J. Proença, F. Perdigão, Eventos Linguísticos na Classificação Automática de Estilos de Fala, APL, Encontro Nacional da Associação Portuguesa de Linguística - APL, Faro, Portugal, Vol. --, pp. -- - --, October, 2012 | Full text (PDF 102 KBs) | BibTex
S. Candeias, A. Veiga, F. Perdigão, Conversor de Grafemas em Fonemas: Um Recurso Linguístico para o Português Europeu, APL, Encontro Nacional da Associação Portuguesa de Linguística - APL, Faro, Portugal, Vol. --, pp. -- - --, October, 2012 | Full text (PDF 244 KBs) | BibTex
A. Veiga, F. Perdigão, L. V. Sá, Using Phoneme Acoustic Models for Fast Word Spotting, Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. 77 - 78, October, 2012,
| Abstract | BibTex
C. Lopes, A. Veiga, F. Perdigão, A European Portuguese Children Speech Database for Computer Aided Speech Therapy, International Conf. on Computational Processing of Portuguese - PROPOR, Coimbra, Portugal, Vol. 7243/2012, pp. 368 - 374, April, 2012,
| Abstract | BibTex
F. Perdigão, C. Neves, L. V. Sá, PATHOLOGICAL VOICE DETECTION USING TURBULENT SPEECH SEGMENTS, INSTICC International Conf. on Bio-inspired Systems and Signal Processing - Biosignals, Vilamoura, Portugal, Vol. -, pp. - - -, February, 2012,
| Abstract | BibTex
S. Candeias, A. Veiga, C. Lopes, F. Perdigão, A Realização do Schwa no Português Europeu, Brazilian Comput Soc Brazilian Symp. in Information and Human Language Technology - STIL, Cuiabá, Mato Grosso, Brazil, Vol. ---, pp. 26 - 31, October, 2011,
| Abstract | BibTex
A. Veiga, S. Candeias, F. Perdigão, Generating a Pronunciation Dictionary for European Portuguese Using a Joint-Sequence Model with Embedded Stress Assignment, Brazilian Comput Soc Brazilian Symp. in Information and Human Language Technology - STIL, Cuiabá, Mato Grosso, Brazil, Vol., pp. 144 - 153, October, 2011,
| Abstract | BibTex
S. Candeias, F. Perdigão, Investigating new syllables prototypes for the portuguese language, International Congress of Phonetic Sciences - ICPhS XVII, Hong Kong, China, Vol. ---, pp. 388 - 391, August, 2011,
| Abstract | BibTex
A. Veiga, S. Candeias, C. Lopes, F. Perdigão, Characterization of Hesitations Using Acoustic Models, International Congress of Phonetic Sciences - ICPhS XVII, Hong Kong, China, Vol. -, pp. 2054 - 2057, August, 2011,
| Abstract | BibTex
J. Nunes, L. V. Sá, F. Perdigão, Talking avatar for web-based interfaces, Conf. on Telecommunications - ConfTele, Lisbon, Portugal, Vol. 1, pp. 1 - 4, April, 2011,
| Abstract | BibTex
C. Lopes, A. Veiga, F. Perdigão, Using Fingerprinting to Aid Audio Segmentation, GTM, RTTH and SIG-IL VI Jornadas en Tecnología del Habla and II Iberian SLTech Workshop - FALA, Vigo, Spain, Vol. -, pp. - - -, November, 2010,
| Abstract | BibTex
A. Veiga, C. Lopes, F. Perdigão, Speaker Diarization Using Gaussian Mixture Turns and Segment Matching, GTM, RTTH and SIG-IL VI Jornadas en Tecnología del Habla and II Iberian SLTech Workshop - FALA, Vigo, Spain, Vol. -, pp. - - -, November, 2010,
| Abstract | BibTex
S. Candeias, A. Veiga, F. Perdigão, A statistical study of Pronunciation Variation of Schwa in Portuguese, Whorkshop on the Sound Change, Barcelona, Spain, Vol. --, pp. -- - --, October, 2010,
| Abstract | BibTex
A. Veiga, S. Candeias, L. V. Sá, F. Perdigão, Using Coarticulation Rules in Automatic Phonetic Transcription, International Conf. on Computational Processing of Portuguese - PROPOR, Porto Alegre, Brazil, Vol. ---, pp. --- - ---, April, 2010,
| Abstract | BibTex
S. Candeias, F. Perdigão, Syllable Structure in Dysfunctional Portuguese Children Speech, International Clinical Linguistics Conf. - CL, Madrid, Spain, Vol. ---, pp. 12 - 17, November, 2009 | BibTex
C. Lopes, F. Perdigão, Global Discriminative Training of a Hybrid Speech Recognizer, I Iberian SLTech - I Joint SIG-IL/Microsoft Workshop on Speech and Language Technologies for Iberian Languages, Lisbon, Portugal, Vol. 1, pp. 57 - 60, September, 2009,
| Abstract | BibTex
B. Silva, H. Mendes, C. Lopes, A. Veiga, F. Perdigão, A Fast Discriminative Training Algorithm For Minimum Classification Error, I Iberian SLTech - I Joint SIG-IL/Microsoft Workshop on Speech and Language Technologies for Iberian Languages, Lisbon, Poland, Vol. 1, pp. 53 - 56, September, 2009,
| Abstract | BibTex
C. Lopes, F. Perdigão, A Hierarchical Broad-Class Classification to Enhance Phoneme Recognition, European Signal Processing Conference EUSIPCO, Glasgow, United Kingdom, Vol. 1, pp. 1760 - 1764, August, 2009,
| Abstract | BibTex
S. Candeias, F. Perdigão, Syllable Structure Prototype for Portuguese Teaching/Learning, Athens Institute for Education and Research International Conf. on Literatures, Languages, Athens, Greece, Vol. ---, pp. --- - ---, July, 2009,
| Abstract | BibTex
A. Veiga, C. Neves, F. Perdigão, L. V. Sá, Out-Of-Vocabulary and Confidence Measures for Speech Recognition Using Phone Models, Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. 457 - 460, May, 2009,
| Abstract | Full text (PDF 55 KBs) | BibTex
C. Neves, A. Veiga, L. V. Sá, F. Perdigão, Audio Fingerprinting System for Broadcast Streams, Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. 481 - 484, May, 2009,
| Abstract | BibTex
C. Lopes, F. Perdigão, Phonetic Recognition Improvements through Input Feature Set Combination and Acoustic Context Window Widening, Conf. on Telecommunications - ConfTele, Sta Maria da Feira, Portugal, Vol. 1, pp. 449 - 452, May, 2009,
| Abstract | BibTex
J. Lopes, C. Neves, A. Veiga, A. M. Maciel, C. Lopes, L. V. Sá, F. Perdigão, Training A Robust Command Recognizer with the Tecnovoz Database, Jornadas en Tecnología del Habla - JTH, Bilbao, Spain, Vol. -, pp. - - -, November, 2008,
| Abstract | BibTex
C. Lopes, F. Perdigão, A Discriminative Training Method Applied to a Hybrid ANN/HMM, International Conf. on Signal Processing - ICSP, Beijing, China, Vol., pp. - - -, October, 2008,
| Abstract | BibTex
C. Neves, A. Veiga, L. V. Sá, F. Perdigão, Efficient Noise-Robust Speech Recognition Front-End Based on the ETSI Standard, International Conf. on Signal Processing - ICSP, Beijing, China, Vol. -, pp. - - -, October, 2008,
| Abstract | BibTex
B. Silva, H. Mendes, C. Lopes, F. Perdigão, A Fast Discriminative Training Algorithm For Speech Recognition Based On Hidden Markov Models, Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. - - -, October, 2008,
| Abstract | BibTex
C. Neves, A. Veiga, J. Lopes, A. M. Maciel, C. Lopes, F. Perdigão, L. V. Sá, A Robust Speech Command Recognizer for European Portuguese, Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. - - -, October, 2008 | BibTex
J. Lopes, C. Neves, A. Veiga, A. M. Maciel, C. Lopes, F. Perdigão, L. V. Sá, Development of a Speech Recognizer with the Tecnovoz Database, International Conf. on Computational Processing of Portuguese - PROPOR, Aveiro, Portugal, Vol., pp. 260 - 263, September, 2008,
| Abstract | BibTex
S. Candeias, F. Perdigão, Conversor de grafemas para fones baseado em regras para português, 10 Years of Linguateca - PROPOR, Aveiro, Portugal, Vol. -, pp. - - -, September, 2008,
| Abstract | BibTex
A. M. Maciel, A. Veiga, C. Neves, Lopes, C. Lopes, F. Perdigão, L. V. Sá, A Robust Speech Command Recognizer For Embedded Applications, International Conf. on Signal Processing and Multimedia Applications, Porto, Portugal, Vol., pp. 92 - 95, July, 2008,
| Abstract | BibTex
C. Lopes, F. Perdigão, Speech Event Detection By Non Negative Matrix Deconvolution, European Signal Processing Conference EUSIPCO, Poznan, Poland, Vol. -, pp. - - -, September, 2007 | BibTex
C. Lopes, F. Perdigão, Hybrid HMM/SVM Speech Event Detector, Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 601 - 604, May, 2007 | BibTex
C. Lopes, F. Perdigão, Speech event detection using SVM and NMD, International Symp. on Signal Processing and its Applications - ISSPA, Sharjah, United Arab Emirates, Vol. --, pp. -- - --, February, 2007 | BibTex
C. Lopes, F. Perdigão, Non-negative matrix factorization: dealing with scaled objects, Mathematical Techniques and Problems in Telecommunications, Leiria, Portugal, Vol. 1, pp. 40 - 44, September, 2006 | BibTex
C. Lopes, F. Perdigão, Improved Performance Evaluation of Speech Event Detectors, International Conf. on Spoken Language Processing - ICSLP, Pittsburgh, United States, Vol. -, pp. - - -, September, 2006 | BibTex
F. Perdigão, Viseme Modeling for Phonetic-Driven Facial Animation, International Conf. on Telecommunications - ICT, Funchal, Portugal, Vol. -, pp. - - -, May, 2006 | BibTex
F. Perdigão, E. Marta, Enhancing Auditory Perception of Stop Consonants in Cochlear Implant Users, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. - - -, April, 2005 | BibTex
A. Navarro, F. Perdigão, Audio-visual Conference through the Ionosphere at 4 kbps, IEEE International Conf. on Multimedia and Expo - ICME, Taipei, Taiwan, Vol. 0, pp. 0 - 0, June, 2004 | BibTex
A. Navarro, F. Perdigão, Error Analysis of MPEG-4 HVXC Parameters at High Frequencies, IEEE International Conf. on Multimedia and Expo - ICME, Taipei, Taiwan, Vol. 0, pp. 0 - 0, June, 2004 | BibTex
A. Veiga, F. Perdigão, An Efficient Word Confidence Measure Using Likelihood Ratio Scores, International Conf. on Language Resources and Evaluation, Lisbon, Portugal, Vol. IV, pp. 1525 - 1528, May, 2004 | Full text (PDF 159 KBs) | BibTex
A. Navarro, R. Rodrigues, J. Angeja, J. Tavares, L. Carvalho, F. Perdigão, Video Conference over HF Packet Radio Channels, IEEE Military Communications Conf. - MILCOM, Boston, United States, Vol. 0, pp. 0 - 0, October, 2003 | BibTex
A. Navarro, R. Rodrigues, F. Perdigão, Significant Analysis of HVXC Speech Coding parameters at High Frequency, International Workshop on Interactive Rich Media Content Production - RICHMEDIA, Lausanne, Switzerland, Vol. 1, pp. 69 - 77, October, 2003 | BibTex
V. Silva, F. Perdigão, Computational Complexity of Discrete Fourier Transform, Mathematical Techniques and Problems in Telecommunications, Tomar, Portugal, Vol. 1, pp. 225 - 228, September, 2003 | BibTex
C. Lopes, F. Perdigão, VTLN through Frequency Warping Based on Pitch, IEEE International Telecommunications Symp., Natal, Brazil, Vol. -, pp. - - -, September, 2002 | BibTex
C. Lopes, F. Perdigão, On the Use of Pitch to Perform Speaker Normalization, International Conf. on Telecommunications, Electronics and Control, Santiago de Cuba, Cuba, Vol. -, pp. - - -, July, 2002 | BibTex
C. Lopes, F. Perdigão, Modeling Intra and Inter Speaker Variability, Portuguese Conf. on Pattern Recognition - RecPad, Aveiro, Portugal, Vol. -, pp. - - -, June, 2002 | BibTex
S.M.M. Faria, P.A. Assunção, L. A. S. C. Cruz, F. Lopes, A. Navarro, J. C. Silvestre, F. Perdigão, V. Silva, L. V. Sá, DSP based hardware for Real-Time Video Coding, Image Processing and Interchange, Implementation and System, San José, United States, February, 1992 | BibTex
S.M.M. Faria, P.A. Assunção, F. Perdigão, V. Silva, L. V. Sá, A Parallel Architecture for Real-Time Video Communications, SPIE Conference on Visual Communication and Image Processing, Lausanne, Switzerland, October, 1990 | BibTex
S.M.M. Faria, P.A. Assunção, L. A. S. C. Cruz, F. Lopes, A. Navarro, F. Perdigão, V. Silva, L. V. Sá, DSP based VIDEO CODEC for Visual Telephony, Fourth IEEE Digital Signal Processing Workshop, New York, United States, September, 1990 | BibTex
S.M.M. Faria, P.A. Assunção, L. A. S. C. Cruz, F. Lopes, A. Navarro, V. Silva, F. Perdigão, L. V. Sá, Desenvolvimento de um Videotelefone em Portugal, European Conference on Networks and Communications - EuCNC, Lisboa, Portugal, April, 1990 | BibTex

Patents

3Patents

M. Gomes, J Santos, F. Perdigão, M Santos, A.M.L.S.M. Morgado, L. Duarte, S. Nunes, L. I. Petrella, C. Pinto, Sistema de ultrassonografia “eye scan” para estimação da energia de faco-emulsificação e método de operação, PT2023233189, National, Pending, 21-05-2022, Portugal,
| Abstract
M. Gomes, J Santos, F. Perdigão, M Santos, A.M.L.S.M. Morgado, L. Duarte, S. Nunes, L. I. Petrella, C. Pinto, Eye scan ultrasound system for estimation of phacoemulsification energy, and operation method thereof, PCT/IB2022/055994, PCT, 31-05-2022,
| Abstract
M. Gomes, F. Perdigão, J Santos, M Santos, J. Amaro, J.S.F. Ferreira, A.M.L.S.M. Morgado, L. M. L. C. D. Duarte, Sistema ultrassónico de exame ocular para deteção precoce e classificação da catarata em tempo real, PT109646, National, Granted, 30-09-2016, Portugal,
| Abstract

Projects

Closed Projects8

Acronym	Name	Funding Agency	Start date	Ending date
AcuRec	Acoustic Modelling for Speech Recognition	IT/LA	01-09-2005	30-09-2007
AVATAR	3D Face Animation	QREN	01-10-2009	01-10-2011
CATARACTUS	Development of a medical device based on ultrasounds for objective cataract characterization and optimal phacoemulsification energy evaluation	FCT/COMPETE/FEDER	26-06-2018	26-07-2022
CATARATA	DEVELOPMENT OF NEW METHODOLOGIES BASED ON ULTRASOUND TECHNIQUES FOR IN VIVO CATARACT CHARACTERIZATION	FCT/PTDC	01-06-2013	01-06-2015
HE[eee]SIT[u]ATION	HE[eee]SIT[u]ATION: Portuguese Hesitation Models	FCT/PTDC	01-02-2011	01-06-2013
LETSREAD	Automatic assessment of reading ability of children	IT/LA	01-02-2014	01-03-2016
Tecnovoz	Tecnovoz	ADI	01-07-2006	01-09-2008
TICE.Healthy	Systems of Health and Quality of Life	QREN/COMPETE	01-01-2011	01-12-2014

Other Scientific Achievements

4Awards

J. Proença, D. Celorico, C. Lopes, M. D. Dias, M.Tjalve Tjalve, A. Stolcke, S. Candeias, F. Perdigão, Camões Prize 2016 for the Technologies for the Portuguese Language, Best paper award at PROPOR 2016 – International Conference on the Computational Processing of Portuguese, given by the Camões Institue for the paper "Design and Analysis of a Database to Evaluate Children’s Reading Aloud Performance", 01-07-2016
A. Veiga, D. Celorico, S. Candeias, F. Perdigão, Prosodic and Phonetic Features for Speaking Styles Classification and Detection, one of the nine finalists for the IberSPEECH 2012 Microsoft best student paper award, 01-11-2012
A. Veiga, S. Candeias, F. Perdigão, Generating a pronunciation dictionary for European Portuguese using a mixed model, prize for the 3rd best paper in the 8th Symposium in Information and Human Language Technology (STIL 2011), Cuiabá, UFMG - Brazil, 01-10-2011
C. Lopes, F. Perdigão, VTLN through Frequency Warping Based on Pitch, prize for best paper in IEEE International Telecommunications Symposium-ITS2002, Natal, Brazil, 12-09-2002

1Prototypes

M. Gomes, F. Perdigão, J Santos, M Santos, M. C. Caixinha, J. Amaro, J.S.F. Ferreira, A.M.L.S.M. Morgado, ESUS - Eye Scan Ultrasound System for Automatic Cataract Detection

Other Contributions

2Conference Committees

International Conf. on Computational Processing of Portuguese - PROPOR, Conference Chairman, 2012
ISCA - Conf. of the International Speech Communication Association - INTERSPEECH, Organizing Committee, 2005

1Refereeing Journals

Journal of Intelligent Transportation Systems: Technology, Planning, and Operations
2011, 1 review(s); 2010, 1 review(s); 2008, 1 review(s);

6Refereeing Conferences

ISCA - Conf. of the International Speech Communication Association - INTERSPEECH
2020, 1 review(s); 2019, 1 review(s); 2015, 1 review(s); 2014, 1 review(s); 2012, 1 review(s); 2011, 1 review(s); 2010, 1 review(s); 2009, 1 review(s);
I Iberian SLTech - I Joint SIG-IL/Microsoft Workshop on Speech and Language Technologies for Iberian Languages
2009, 1 review(s);
International Conf. on Computational Processing of Portuguese - PROPOR
2018, 1 review(s); 2014, 1 review(s);
IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP
2018, 1 review(s);
European Signal Processing Conference EUSIPCO
2018, 1 review(s);
IEEE International Conference on Acoustics, Speech, and Signal Processing ICASSP
2020, 2 review(s); 2019, 1 review(s);

Related UN SDG

Activities from this researcher fall under the following United Nations Strategic Development Goals (SDGs):

IT Member Profile

Fernando Perdigão

Scientific Achievements

As Supervisor

As Supervisor

As Co-supervisor

Closed Projects8