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Laboratory of Signals and Systems - LSS

Laboratory of Signals and Systems - LSS

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Laboratory of Signals and Systems - LSS

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  1. Laboratory of Signals and Systems - LSS Public Evaluation Session of the new Unit (FCT’s Program of Pluri-annual Funding of Research Units) FEUP, 17 December 2003

  2. Proposed Agenda • Presentation of the new Unit – LSS (30’) • Discussion (30’) • Visit to the Laboratory’s facilities (30’) • End of Session

  3. December, 17, 2003 Presenter: Diamantino Freitas Laboratory of Signals and Systems - LSS

  4. This presentation • Characterization of the Unit • Unit’s production 2002-2003 • Research and Development plan • Inter-institutional and International Cooperation • Conclusion • Introduction of the visit to the laboratory facilities.

  5. This presentation • Characterization of the Unit • Unit’s production 2002-2003 • Research and Development plan • Inter-institutional and International Cooperation • Conclusion • Introduction of the visit to the laboratory facilities.

  6. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  7. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  8. Characterization of the Unit • Main objectives: • To do R&D in Signal Processing with Application in Electronic and Information Systems; • To promote scientific progress of the personel and supervise under graduate and post-graduate students • To make organizational advances to strengthen and develop the existing infra-structures, physical spaces and resources • To cooperate with other laboratories, enterprises and networks for the realization of R&D projects and publications.

  9. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  10. Characterization of the Unit • Scientific background • In January 1994, 2 PhDs0,1, + 2 PhD students2,3 + several graduate members. • In December 2001, 3 PhDs1,2,3 + 5 PhD students5,6,7,8,9 + 8 MSc students10,11,12,13,14,16,19,20. • R&D in the period 1995-2001 was in Speech Processing and System Identification and Modeling • Speech Processing: • 1 PhD thesis, 1 PhD student, 5 MSc thesis, 3 MSc students + several undergraduates. • Signals and System Modeling through Identification: • 2 PhDs + 4 PhD Students + 4 MSc students.

  11. Characterization of the Unit • Scientific background (cont.) • Main projects: • REC, Program PRAXIS XXI, development of a speaker recognition module for applications over the telephone; • ANTIGONA, Program EUREKA – IC/PME – development of a speech interface for electronic commerce; • DOPECA, Program PRAXIS XXI, development of an ultrasonic obstacle detector for blind persons • SMILE, Program CITE 4, development of an audio browser for the Web. • International Cooperation: • COST 219, COST 219 bis, COST 249, COST 250, COST 258 • Bilateral Cooperation: • JNICT-OMFB (with Tech University of Budapest 1994-1997) • ICCTI-CAPES (with LPS at Univ Fed of Rio de Janeiro 1997-2003) • ICCTI- Republic of India (Goa – Univesity of Goa, 1997-1998) • Univ of Porto- Univ of Vigo (Spain). • Inter-institutional cooperation: • Institute of Biomedical Sciences Abel Salazar of Univ. of Porto (ICBAS 2001-) • Calculus – research unit on the Teaching of Mathematics of ESE-IPP (2001-)

  12. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  13. Characterization of the Unit • R&D Objectives, Areas and Status: Objectives: • Develop R&D in basilar areas of DSP • Promote application projects as a method of experimenting and designing conceptually new solutions through: • Use of identification techniques • Parametric Modeling and Control techniques • Multi-streaming techniques • Advanced programming techniques

  14. Characterization of the Unit • R&D Objectives, Areas and Status(cont.) : • Area 1: System Identification and Analysis • Background Academic results: 1 PhD completed2, 5 PhD on-going5,7,8,9,28, 5 MSc completed5,7,9,29,31, 2 MSc on-going11,13,; • Applications: • Transfer functions in electronic and electro-acoustic systems • Analysis and synthesis of acoustic noise effects over living organisms • Instrumentation for weight measurement • Main results already obtained: • Parametric and non-parametric techniques for analysis and equalization of electro-acoustic transfer functions (pulse and TDS); • Parametric identification methods for induction motors; • Parametric advanced control system for induction motors; • Ultrasonic obstacle detector (beamforming with DSP). HOT!

  15. Characterization of the Unit • R&D Objectives, Areas and Status(cont. 2) : • Area 2: Pattern recognition and synthesis in Speech Processing • Background Academic results: 1 PhD completed3, 2 PhD on-going6,10, 2 MSc completed6,10, 5 on-going MSc12,14,15,16,18 • Applications: • Speech analysis (Down Syndrome), recognition and synthesis, voice interface; • Web accessibility, e-learning accessibility to communications for disabled persons • Teaching speech processing (under and post-graduate) • Main results already obtained: • Speech recognizer (single-stream, multi-stream, continuous speech medium vocabulary, speaker independent plus audio-visual) • Speech synthesizers (formant, OLA, with MS Windows SAPI Interface) • AudioBrowser for visually impaired persons; • AQN - Software for teaching children how to read numbers; • AudioMath – Software for reading mathematical formulae; • Prosody model for European Portuguese. HOT! HOT!

  16. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  17. Characterization of the Unit • Personel and Organization (2003) Some research staff pictures:

  18. Characterization of the Unit • Personel and Organization (2003) Research staff qualifications: • 3 PhD Professors (1 Associate1, 2 Assistant2,3, at DEEC-FEUP) • 7 MSc Professors (1 Lecturer4 at FMUP, 2 Adjoint5,6 at ESTG-IPB, 37,8,9 Adjoint at ISEP-IPP, 1 lecturer10 at ISEL-IPL) all are PhD students • 6 Graduated professors (411,12,13,14 at ESTG-IPB, 115 at ESTS-IPS, 116 at UCP) all are MSc students • 5 Graduated researchers (217,18,28 at DEEC-FEUP, 219,20 at ESTG-IPB) 1 is PhD student28, 1 is MSc student18 • 5 graduated21,22,23,24,25 part-time researchers • 2 undergraduated26,27 part-time researchers Administrative staff: • 1 part-time Secretary30

  19. Characterization of the Unit • Personel and Organization (2003) (continued) Research Staff names: 16-Daniela Braga (MSc at U. Minho), 17-Fernando Lopes, 18-Helder Ferreira, 19-Rui S. da Silva, 20-José Batista, 21-Hugo Santos, 22- Humberto Fonseca, 23- Constança Homem, 24- Ana Sousa, 25- Jorge Alves, 26- Ana Mota, 27- Hugo Silva, 28- Nuno Santos, 29- André Cardoso (on leave), 30- Irene Fernandes, 31- Jorge Reis (on leave). 0- Carlos Espain Oliveira (deceased), 1-Diamantino Freitas, 2-Rui Araújo, 3-Vitor Pera, 4-Carla Moura, 5-Américo Leite, 6-João P. Teixeira, 7-A.Avelino Marques, 8-José C. Oliveira, 9-Rui Azevedo, 10-Maria J. Barros, 11-Ângelo César, 12-António Moura, 13-Henrique Teixeira, 14-L. Filipe Moreira, 15-Luís Coelho,

  20. Characterization of the Unit LSS Scientific Council Diamantino Freitas (Coordinator), Rui Araújo, Vitor Pera Counseling Commission Organization (2003) Pattern recognition and synthesis in Speech Processing Vitor Pera João P. Teixeira Maria J. Barros Carla Moura L. Filipe Moreira Daniela Braga António Moura Luís Coelho Fernando Lopes Helder Ferreira Constança Homem Ana Sousa Jorge Alves Diamantino Freitas System Identification and Analysis Rui Araújo Américo Leite José C. Oliveira A.Avelino Marques Rui Azevedo Henrique Teixeira Rui S. da Silva José Batista Ângelo César Hugo Santos Humberto Fonseca Nuno Santos Diamantino Freitas Laboratory Infrastructure and resources Ana Mota, Helder Ferreira Secretariat Irene Fernandes

  21. Characterization of the Unit • Main objectives • Scientific background • R&D Objectives, Areas and Status • Personel and organization • Instalations and infra-structure

  22. Characterization of the Unit • Instalations and Infra-structure • Laboratorial facilities: • At FEUP: • Room I205 , LPF-ESI, area 67 m2 • Room I214 , LPF-ESI 2, area 25 m2 • At Escola Superior de Tecnologia e Gestão-Instituto Politécnico de Bragança: • Laboratory of Electronics and Instrumentation area 60 m2.

  23. Characterization of the Unit • Instalations and Infra-structure (continued 1) • Some pictures At I205, FEUP:

  24. Characterization of the Unit • Instalations and Infra-structure (continued 1) • Some pictures At I205, FEUP:

  25. Characterization of the Unit • Instalations and Infra-structure (continued 1) • Some pictures At I205, FEUP:

  26. Characterization of the Unit • Instalations and Infra-structure (continued 1) • Some pictures At IPB:

  27. Characterization of the Unit • Instalations and Infra-structure (continued 1) • Some pictures At IPB:

  28. Characterization of the Unit • Instalations and Infra-structure (continued 2) • Infrastructures and facilities: • Computer network, Web Server, Web Site Webmaster, Repository, Collaborative Platform (under construction), Comprehensive Database (under construction)

  29. Characterization of the Unit

  30. Characterization of the Unit • Instalations and Infra-structure (continued 2) • Infrastructures and facilities: • Computer network, Web Server, Web Site Webmaster, Repository, Collaborative Platform (under construction), Comprehensive Database (under construction) • Access to Acoustic Chambers and equipment (reverberant at DEC of FEUP and semi-anechoic at IDIT) • Coordinators of the Proposed “Park of Acoustical Infrastructures” to the FCT Scientific Re-Equipment Programme (stalled). • At IPB’s LEI laboratory: Motor drive rigs up to 3kW. A key feature of the facility is an integrated instrumentation system in which test rigs measurements are fed to a central computer, here the measurements are digitized, recorded and post-processed. Topics:- Instrumented motor drive test bed up to 3 kW- integrated  computer based instrumentation;- DSP plataform based on Dspace board- Simulation Softwares (Matlab/Simulink and Saber)

  31. This presentation • Characterization of the Unit • Unit’s production 1999-2003 • Research and Development plan • Inter-institutional and International Cooperation • Conclusion • Introduction of the visit to the laboratory facilities.

  32. Unit’s production 1999-2003 • Publications • Dissertations • Projects • Seminars and Speeches and Tutorials • Other

  33. Articles in International Journals with referees: 4 Books or Chapters of Books: 2 Publications 1999-2003: • Communications in Proceedings with referees: 55 • Other publications: 2 See full List of publications in annex

  34. Unit’s production 1999-2003 • Publications • Dissertations • Projects • Seminars and Speeches and Tutorials • Other

  35. Completed: PhD dissertations: 2 2,3 MSc dissertations: 3 10,14,31 On-going: PhD dissertations: 7 5,6,7,8,9,10,28 MSc dissertations: 6 11,12,13,15,16,18 Dissertations 1999-2003:

  36. Yearly profile of production of publications: Publications + Dissertations 1999-2003:

  37. Unit’s production 1999-2003 • Publications • Dissertations • Projects • Seminars and Speeches and Tutorials • Other

  38. Projects 1999-2003: • Funded: • REC, Program PRAXIS XXI, development of a speaker recognition module for applications over the telephone; • ANTIGONA, Program EUREKA – IC/PME – development of a speech interface for electronic commerce; • DOPECA, Program PRAXIS XXI, development of an ultrasonic obstacle detector for blind persons • SMILE, Program CITE 4, development of an audio browser for the Web. • AUDIOBROWSER, FCT Program, improvement of an existing audio browser for the Web. • Factory Noise exposure, IDICT Program, design of a acoutic noise acquisition and reproduction system for in-lab exposure tests (in ICBAS, on-going under FCT sponsorship).

  39. Unit’s production 1999-2003 • Publications • Dissertations • Projects • Seminars, Speeches and Tutorials • Other

  40. Seminars, Speeches and Tutorials 1999-2003: • Seminars at FEUP: • “Fundaments of Adaptive Filtering and New Algoritms Based on Error Signal Multi-band decomposition”, Prof. F. Gil, 1999. • “Binaural Signal Processing”, Prof Jens Blauert, 1999. • COST 219 bis Seminar: “Telecommunications for Disabled and Elderly Persons: Where are we today?”, 2000. • “Speech Coding, Recognition and Synthesis”, Prof F. Gil, 2002. • “Neural Networks in Time Series”, Prof. Luis Caloba, 2002. • “Signal Compactation and DSP Implementation”, Prof M. Seixas, 2002. • “Modeling in the Study of Tonal Features of Speech with Application to Multilingual Speech Synthesis”, Prof. Hiroya Fujisaki. • “Topics in Speech Coding, Recognition and Synthesis”, Prof F. Gil, 2003.

  41. Seminars, Speeches and Tutorials 1999-2003: • Speeches or presentations without printed publication: • “Automatic Generation of Segmental Durations in Portuguese”, presented at Maastricht MCM meeting of COST 258, 2001. • o Acoustic Characterisation of Tonic Syllable in Portuguese, apresentado • em Lausanne na reunião do COST 258 em 1999 • “About the Accessibility to Communication and Information Systems”, D. Freitas, Exponor, Matosinhos, 2001. • “Electro-acoustics, an interdisciplinary area that needs much instrumentation” , D. Freitas, Second Meeting of the Portuguese Section of the Audio Engineering Society, 2002. • “Low frequency electromagnetic radiation” , D. Freitas, António Nobre School, 2003.

  42. Seminars, Speeches and Tutorials 1999-2003: • Tutorial: • “Introduction to the Synthesis of Spoken Portuguese”, J. P. Teixeira, M. J. Barros, Daniela Braga, Luis Coelho, D. Freitas, tutorial presented at Universidade Eduardo Mondlane, Maputo, 2003.

  43. Unit’s production 1999-2003 • Publications • Dissertations • Projects • Seminars, Speeches and Tutorials • Other

  44. Other 1999-2003: • Consultancy: • Electro-acoustics consultancy for the Owner of the new Church in Fatima. • Electro-acoustics consultancy for the Owner of the new Church in V.N de Gaia, Sto Ovídio. • D. Freitas Member of the Peer-review group of TIDE Project DE3006)MORE. • Products: • Voice Interface for Electronic Commerce (ANTIGONA) • Text-to Speech engine for European Portuguese.

  45. This presentation • Characterization of the Unit • Unit’s production 2002-2003 • Research and Development plan • Inter-institutional and International Cooperation • Conclusion • Introduction of the visit to the laboratory facilities.

  46. Research and Development plan • Speech Processing: • Years 1, 2 and 3: • Continue development of Text-to-speech system: • Refine RELP-OLA system • Use pole-zero modeling and Employ wavelet coding • Dynamic selection algorythms, employ HMM modeling (voice morphing, adaptation)– Lab. Of Prof Tokuda – Japan • Successor Action of COST 258 (leadership) • Introduce new linguistic analysis tools, labeling, morphological ana syntactic analysis • Refine text pre-processing (numerals, acronyms, abbreviations, mathematical formulae) – advanced, pioneering invited for international workshop • Refine prosody modeling (durations, f0, general modeling, intensity, rythm, vioce quality) – advanced – pioneering in European Portuguese • Place a TTS in the Wep page • Continue development of the Speech recognition system: • New database recording and procesing for Isolated word recognition and continuous speech recognition • Multi-modal recognition with facial expression dynamics • Robust speech recognition techniques.

  47. Research and Development plan • Signals and Systems Modeling through Identification: • Years 1, 2 and 3: • Induction motor modeling: • Consolidate, refine and extend the parametric identification techniques, Kalman filtering and bilinear transformation • Other types of motors (hysteresis motor , etc) • Refine DSP application with dSpace boards • Build an electronic power converter to allow the efficient control with the parametric modeling and sliding-mode control, bond-graph techniques • Apply to electric motor drives in electric vehicles situations of manouvrability and efficiency demands • Electronic and electro-acoustic systems modeling and compensation: • Continue the developmento of electronic systems identification algorythms • Continue the development of electro-acoustic transfer function modeling and compensation (inverse filtering) with Kautz filters and IIR filters. • Continue research about TDS methodologies

  48. Research and Development plan • General: • Years 1, 2 and 3: • Conclusion of 4 PHD Thesis in 2004. • Publication of results of PhD thesis in International reviews. • Collaboration in the organization of Eurospeech’05 that will be well in Lisbon. • Candidature of organizations of a “satellite event” of Eurospeech’05 to be well in Porto. • Leadership of the candidature to a COST Action successor to the COST 258 (already jointly planed with more than 20 Europeans research units). • Develop the internal cohesion through collaborative platform and exchange initiatives.

  49. This presentation • Characterization of the Unit • Unit’s production 2002-2003 • Research and Development plan • Inter-institutional and International Cooperation • Conclusion • Visit to the laboratory facilities - Introduction.

  50. Inter-institutional and International Cooperation • Cooperation projects in the aim of COST actions with more than 40 European research units. Resulting in a publications of two books: • “Improvements in Speech Synthesis”, by E. Keller, G. Bailly, A. Monaghan, J. Terken, & M. Huckvale (editors), Wiley, 2001. • “Bridging the gap – Access to telecommunications for all people”, COST 219 bis, Patrick Roe (editor), Commission of the European Communities, 2001. With particular relevant cooperation with: • University of Vigo (Spain) through Eduardo Banga • Aculab (England), by the way of Alex Monaghan. • LAIP University of Lausanne (Switzerland) by the way of Eric Keller and Brigitte Zelnner. • Several national Laboratories (UTL, INESC, IPB, IPP)