Luis António Serralva Vieira de Sá

Luís Sá

Academic position:	Full 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
Fax: +351 239 796 293

Alternative Personal Web Page

Scientific Achievements

Degrees

Agregação, Universidade de Coimbra, 01-01-2000
PhD, University of South Wales, 02-12-1984

Publications

4Papers in Journals

V. Silva, L. V. Sá, General method for perfect reconstruction subband processing of finite length signals using linear extensions, IEEE Transactions on Signal Processing, Vol. 47, No. 9, pp. 2572 - 2575, September, 1999 | BibTex
V. Silva, L. V. Sá, Analytical optimization of CQF filter banks, IEEE Transactions on Signal Processing, Vol. 44, No. 6, pp. 1564 - 1568, June, 1996 | BibTex
V. Silva, L. A. S. C. Cruz, F. Lopes, A. Navarro, L. V. Sá, Multiprocessor based image coding, Microprocessing and Microprogramming (EUROMICRO), Vol. 32, No. 1-5, pp. 343 - 348, August, 1991 | 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

25Papers in Conferences

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
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
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
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
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
C. Ferreira, B. Borges, L. V. Sá, Design of One Cycle Control for Low Distortion Bipolar Switching Inverters, IEEE Industrial Electronics Conf. - IECON, Porto, Portugal, Vol. -, pp. - - -, November, 2009,
| Abstract | Full text (PDF 414 KBs) | BibTex
C. Ferreira, B. Borges, L. V. Sá, Output Filter Solutions for Class D Power Amplifiers: Analysis, Characterization and Recent Developments, AES - Conf. Class D Audio Amplification, Hillerød, Denmark, Vol. -, pp. - - -, August, 2009,
| Abstract | Full text (PDF 220 KBs) | BibTex
C. Ferreira, B. Borges, L. V. Sá, One Cycle Control Design for High Performance Two-Level Power Inverters, Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. -, pp. - - -, May, 2009,
| Abstract | Full text (PDF 174 KBs) | 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. Ferreira, B. Borges, L. V. Sá, Filtragem de Saída em Amplificadores Áudio de Classe D, AES Encontro de Engenharia de Áudio da AES Portugal, Lisboa, Portugal, Vol. -, pp. - - -, December, 2008 | Full text (PDF 702 KBs) | 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. 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
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
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
B. Neto, L. V. Sá, R.N. Nogueira, J. L. Pinto, M. J. N. Lima, R. F. Rocha, A. Teixeira, P.S André, Thermodynamic model of tunable chromatic dispersion compensator using chirped fiber Bragg grating, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005 | BibTex
P.P. Monteiro, L. V. Sá, J. J. Júdice, Direct Time-Domain Filter Synthesis: a procedure for finding global optima in first order systems, Portuguese Conf. on Pattern Recognition - RecPad, Porto, Portugal, Vol. none, pp. 381 - 385, May, 2000 | BibTex
P.P. Monteiro, L. V. Sá, A New Metod to Evaluatein Closed-Form the Response of Stable Continuous-time ARMA Systems to a Periodic Input Avoiding Fourier Series, Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. none, pp. 269 - 274, March, 1997 | BibTex
S.M.M. Faria, A. Navarro, L. V. Sá, Address Generator Circuit for a H.261 Encoder, Portuguese Conf. on Pattern Recognition - RecPad, Porto, Portugal, May, 1993 | 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
S.M.M. Faria, P.A. Assunção, V. Silva, L. V. Sá, Um Codec para Videotelefonia, Encontro Nacional de Engenharia Eléctrica - ENDIEL, Porto, Portugal, April, 1989 | BibTex

Projects

Closed Projects3

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
Tecnovoz	Tecnovoz	ADI	01-07-2006	01-09-2008

Other Scientific Achievements

1Miscellaneous

L. V. Sá, Concurso de Bolsas de Investigação da FCT, Technical Audit, 01-05-2006

Other Contributions

2Conference Committees

Conf. on Telecommunications - ConfTele, Technical Programme Chairman, 2007
European Conf. on Speech Communication and Technology, Organizing Committee, 2005

IT Life Member

Luís Sá

Scientific Achievements

Closed Projects3