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Project Reports 1999 |
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1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
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| Decomposition Model for One- and Two-Dimensional Compound
Signals |
| Leader: |
Prof. Dr. Damjan Zazula |
| Participants: |
Asst. Prof. Dr. Danilo Korže; Dr. Andrej Šoštaric; Dr. Dean Korošec; Bogdan
Viher, MSc |
| Financed by: |
Ministry of Science and Technology of the Republic of Slovenia |
| Duration: |
1997 to 1999 |
| The main goal of this project was to develop a general decomposition model for compound signals. The first year of the project was devoted to studies of different approaches that may be used in our model. The research was continued in the second year with two main objectives: to elaborate some successful mono-dimensional decomposition approaches and to apply them to synthetic and real biomedical signals. We developed a novel bicepstral decomposition method that uses the advantages of the interpolated cepstra calculation. We then verified it on synthetic surface EMG signals. Another implementation of synthetic and real EMG signals was based on two approaches emerging from time-scale representations. The first one uses the principle of a multimodal parametric peel-off technique for time-scale plane construction and was called subtractive wavelet transform. The second one introduces time-scale phase analysis, which leads to a very precise detection of the signal components along the time axis. The last project year was devoted to the development of generalised polycepstral system identification using frequency-domain interpolation, and to implementation of time-frequency recognition of EMG dynamics based on classification in the ambiguity plane. |
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| Conceptual Learning of Computer Science |
| Leader: |
Prof. Dr. Damjan Zazula |
| Participants: |
Asst. Prof. Dr. Danilo Korže; Dr. Andrej Šoštaric; Dr. Dean Korošec; Božidar
Potocnik, MSc; Aleš Holobar; Matjaž Divjak; Iztok Prelog |
| Financed by: |
Ministry of Education and Sport of the Republic of Slovenia |
| Duration: |
1998 to 1999 |
This project lasted for two years. Its main results were:
- development of the software learning tools with embedded simulations of the components of computer systems and software
- testing the developed didactic software in a real educational environment
- testing efficiency, flexibility, and suitability of introduced user interfaces and learning procedures
- dissemination of new products and approaches through local and international professional meetings and seminars for teachers
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| NICE - Nursing Informatics and Computer-Aided Education(Participation in Tempus Phare project) |
| Leader: |
Assoc. Prof. Dr. Peter Kokol |
| Participants: |
Prof. Dr. Damjan Zazula; Asst. Prof. Danilo Korže; Dr. Dean Korošec; Božidar
Potocnik, MSc; Bogdan Viher, MSc |
| Project partners: |
University College of Nursing in Maribor and Healthcare Centre of
Maribor, Slovenia; University Hospital of Nantes, France; Centro di Bioingegneria
Milano, Italy; University of Athens, Greece; University of
Klagenfurt, Austria |
| Financed by: |
European Union |
| Duration: |
September 1996 to August 1999 |
| This was a Tempus Phare project, the goal of which was the preparation of a new university short-term course and syllabus for nurses, particularly in nursing informatics. We focused on three basic activities: on the design and installation of a new computer classroom equipped with teleconferencing facilities; on selecting, purchasing, and installing computer simulators important in health care and nursing; and on the preparation, editing, and publishing of six university text-books proposed and agreed upon by the project partners during the previous year. Each text-book contains five or six chapters covering topics of computer hardware and software and its implementation in nursing informatics and computer-assisted learning tools. The authors of eight chapters and the editor of one text-book are members of our laboratory. |
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| Co-tutelle - Analysis of Monodimensional Signals by Post-Processing of Their Time-Frequency
Representations (Franco-Slovenian project of co-supervision for Dean Korošec) |
| Supervisors: |
Prof. Dr. Damjan Zazula, Prof. Dr. Christian Doncarli |
| Candidate: |
Dr. Dean Korošec |
| Financed by: |
Partly French Ministry of Higher Education and Science, partly the Ministry of Science and Technology of the Republic of Slovenia |
| Duration: |
October 1996 to May 1999 |
| This co-supervision covers the PhD research work of D. Korošec who was supervised by two professors, one in Nantes, France, the other in Maribor, Slovenia. D. Korošec's PhD thesis was validated in both countries simultaneously. The research focused on an extensive testing of certain synthetic signals being generated by a class of dynamic systems that mimic the behaviour of human muscles. A novel classification scheme for dynamic systems was introduced using the contrast feature of the ambiguity plain. The results obtained were compared with the outcomes of parametric identification methods implemented in the previous research. |
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| SENIAM - Surface EMG for Non-Invasive Assessment of Muscles(Membership to the SENIAM Club) |
| Leader: |
Prof. Dr. Damjan Zazula |
| Participants: |
Dr. Andrej Šoštaric; Dr. Dean Korošec; Bogdan
Viher, MSc |
| Project partners: |
16 European universities and laboratories |
| Financed by: |
European Union |
| Duration: |
October 1996 to September 1999 |
| Our system software laboratory didn't have direct project partner status for this project. However, we do belong to the SENIAM Members Club. This gave us the right to make use of project results and to participate in agreed work on a reimbursement basis. Our main efforts were directed toward a unified European network of laboratories who are researching measuring, modelling, computer interpretation, and the diagnostics of electromyograms. We worked on MIMO decomposition models for surface EMGs. We proved the efficiency of four novel decomposition techniques: subtractive wavelet transform, time-scale phase analysis, bicepstral decomposition based on asymptotically exact computation of differential cepstrum with interpolation in the frequency domain, and the contrast-based classification in the ambiguity plane. The approaches were tested on synthetic surface EMGs, except the subtractive wavelet transform and contrast-based classification, which were applied to the real EMG signals as well. |
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| IDESEMG - Interpretation and Decomposition of Surface EMG
Signals (Bilateral Italian-Slovenian project) |
| Leader: |
Prof. Dr. Damjan Zazula |
| Participants: |
Dr. Andrej Šoštaric, Dr. Dean Korošec |
| Project partners: |
Centro di Bioingegneria, Torino (Prof. Dr. Roberto
Merletti) |
| Financed by: |
Partly Italian Ministry of Science, partly the Ministry of Science and Technology of the Republic of Slovenia |
| Duration: |
1997 to 1999 |
| Together with the Centro di Bioingegneria in Turin, Italy, we worked on computer-based procedures for the interpretation and decomposition of surface EMG signals. The problem was very complex, especially because we were looking for the solutions that may be applied in a clinical environment. We have verified a multimodal parametric search and subtractive wavelet transform using real signals at different levels of isometric voluntary contraction (up to 70% of maximum voluntary contraction). In 1999, the mobility scheme enabled an exchange of researchers. Dr. Korošec visited Turin to work with the group there on recording surface EMGs under different conditions and contraction forces. Afterwards, Dario Farina from the Centro di Bioingegneria from Turin paid a short visit to the System Software Laboratory of Maribor. He and Dr. Korošec investigated features of the AR models in the estimation of surface EMG dynamics and spectra. |
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| INACoL - Interactive Network Approach in Conceptual
Learning (Bilateral USA-Slovenian project) |
| Leader: |
Prof. Dr. Damjan Zazula |
| Participants: |
Dr. Andrej Šoštaric, Dr. Dean Korošec, Aleš Holobar |
| Project partners: |
Hewlett-Packard Laboratories, Palo Alto (Prof. Dr. Zvonko
Fazarinc) |
| Financed by: |
Ministry of Science and Technology of the Republic of Slovenia |
| Duration: |
1998 to 1999 |
This project represented continuation of our established research work, mainly in terms of personnel mobility. The main research goals were: development of principles of conceptual learning; implementation of conceptual learning using an interactive network approach; the search for a unified, easy-to-use environment supporting interactive network learning applications; and realisation of some application packages.
In 1999 we developed simulations that demonstrated the functioning of the heart with various impairments and the corresponding cardiac surgeries. We worked in co-operation with the Stanford School of Medicine, under the supervision of Prof. Joshep DiCarlo and with the help of cardiologists at Stanford. The simulations will be included in web pages created for teaching medical students and will be publicly available on
http://picuBOOK.net.
A partial result of the project collaboration is also nine conference publications. |
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