Creating and sharing knowledge for telecommunications

IT Life Member

... Luis António Serralva Vieira de Sá

Senior Researcher

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

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

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
1Miscellaneous
  • L. V. Sá, Concurso de Bolsas de Investigação da FCT, Technical Audit, 01-05-2006
2Conference Committees
  • Conf. on Telecommunications - ConfTele, Technical Programme Chairman, 2007
  • European Conf. on Speech Communication and Technology, Organizing Committee, 2005

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

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