Focus Group Details

In this focus group signal processing related aspects are bundled to minimize redundancy among the projects and allow for common research on overlapping topics. Such topics start with very basic preprocessing steps such as offset removal (high pass filtering) for the recorded ME signals. Several of the medical projects need 3-dB cut-off frequencies of about 0.1 to 1 Hz at sample rates of 100 kHz and more. This results in sophisticated filter structures even for hardware components with 32-bit floating-point precision. The same is true for notch filters (removal of 50 Hz distortions and multitudes of this basis frequency). Furthermore, the removal of artifacts and noise, either in terms of temporal exclusion or attenuation as well as subtraction (using adaptive filters), is necessary in a variety of B projects. The same is true for multi-channel localization approaches such as beamforming or correlation-based approaches. After such preprocessing steps, a multitude of signal analyses, either of single ME signals or of a whole set of simultaneously recorded ME signals, are performed. This includes, for example, coherence estimations with electrical counterparts of the ME signals or visualization of the data in different domains (time-domain analyses, frequency-domain conversion with different resolutions, mixed-time-frequency-plots, short-term auto- and cross-correlation analyses, inverse solutions, Kalman filtering, beamformer techniques, to name just a few).

The participating projects are B2, B3, B5, B6, B7 and Z2. The activities of the focus group are coordinated by Gerhard Schmidt. During the meetings, current measurement and research results are presented. Data are shared among the projects and the strengths of the data analysis competence in the different projects are capitalized on. The focus group is the place to exchange data, new ideas on data analysis and results. Furthermore, signal analyses that are important for more than one project will be presented and reference implementation are generated using, for example, the simulation tool Matlab.

 

Helmut Laufs
PhD, PD Dr. med.
Lead of project B6, IRTG
Gerhard Schmidt
Prof. Dr.-Ing.
Lead of projects B2, B6, and Z2
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Past and Upcomming Meetings


Focus Group F3: Meeting 1 / 2018
22 Jan 2018
03:00PM - 04:30PM

After a project update from every participant we discussed shortly the signal analysis of DBS data (by Andreas Galka) and first (phantom-based) DBS measurements (by Mevlut Yalaz). Christin Bald and Eric Elzenheimer presented the results of the measurments (heart and nerve) that were performed in cooperation with the PTB in Berlin. Finally Nawar Habboush showed first model results and Alexander Teplyuk reported about the new scanner approaches for DBS analysis.

 

Participants:

B2: Christin Bald, Gerhard Schmidt
B3: Nawar Habboush, Andreas Galka
B5: Mevlut Yalaz, Michael Höft
B6: Eric Elzenheimber, Gerhard Schmidt
B7: ---
Z2: Alexander Teplyuk, Michael Höft
Guests: Andreas Bahr

 

 



Focus Group F3: Meeting 4 / 2017
18 Sep 2017
04:30PM - 05:30PM

As usual we started with a short update from every project. Afterwards Mevlut Yalaz and Alexander Teplyuk showed first results of fluxgate-based measurements of the DBS phantom as well as results of reconstruction approaches using minium-norm methods. Furthermore, Eric Elzenheimer explained the planned measurements at PTB in Berlin.

 

Participants:

B2: Gerhard Schmidt
B3: ---
B5: Mevlut Yalaz
B6: Eric Elzenheimber, Gerhard Schmidt
B7: Ron Marco Friedrich
Z2: Alexander Teplyuk, Michael Höft
Guests: ---

 



Focus Group F3: Meeting 3 / 2017
14 Jul 2017
10:00AM - 11:00AM

After a project update from every project we discussed the new sensor holding devices from Alexander, had a look on the DBS measurment results from Mevlut, see the first results of the magnetic particle mapping measurments form Ron, discussed the measurments in the surgery area of UKSH (presented from Gerhard), and had a first look on the analyses of our measurements at the PTB in Berlin (presented from Eric).

 

Participants:

B2: Gerhard Schmidt
B3: Andreas Galka
B5: Michael Höft, Mevlut Yalaz
B6: Eric Elzenheimer, Gerhard Schmidt
B7: Ron-Marco Friedrichs
Z2: Michael Höft, Alexander Teplyuk
Guests: ---

 

 



Focus Group F3: Meeting 2 / 2017
07 Apr 2017
01:00PM - 02:30PM

After a project update from every project we discussed the idea from our retreat in Sankelmark to write minimum requirement specifications for our sensor systems for the individual medical and biological applications. It was agreed on, that Gerhard and Jens will start with a prototype specification and the other application projects will do a review and add further details.

Participants:

B2: Gerhard Schmidt
B3: Nawar Habboush, Andreas Galka
B5: ---
B6: Eric Elzenheimer, Gerhard Schmidt
B7: Ron-Marco Friedrichs
Z2: ---
Guests: ---

 

 



Focus Group F3: Meeting 1 / 2017
27 Jan 2017
01:00PM - 02:30PM

After a project update from every project we discussed the cooperation with the PTB measurements in Berlin. In addition, Anne Kittmann gave a talk on the new sensor principle that is currently investigated by her and colleagues.

Participants:

B2: Gerhard Schmidt
B3: Laith Hamid
B5: Michael Höft, Mevlut Yalaz
B6: Eric Elzenheimer, Helmut Laufs, Gerhard Schmidt
B7: Ron-Marco Friedrichs
Z2: Michael Höft, Alexander Teplyuk
Guests: Anne Kittmann

 



Focus Group F3: Meeting 5 / 2016
16 Dec 2016
01:00PM - 02:30PM

After a short project update from every project Helmut Laufs was elected as the second leader of the focus group. A detailed project overview was given by Eric Elzenheimer about project B6 and we agreed to get an overview about B7 next time (presenter will be Ron-Marco Friedrichs). Afterwards Ron presented a literature study on magnetic liver analyses.

Participants:

B2: Gerhard Schmidt
B3: Laith Hamid
B5: Michael Höft, Mevlut Yalaz
B6: Eric Elzenheimer, Helmut Laufs, Gerhard Schmidt
B7: Ron-Marco Friedrichs
Z2: Michael Höft, Alexander Teplyuk
Guests: ---

 



Focus Group F3: Meeting 4 / 2016
16 Nov 2016
01:00PM - 02:30PM

After a status resport of all projects the algorithmic progress and the hardware installations were discussed. Project Z2 reported on progress in the head scanner and project B6 showed the progress on a new nerve transmission model.

Participants:

B2: Gerhard Schmidt
B3: ---
B5: Michael Höft
B6: Eric Elzenheimer, Gerhard Schmidt
B7: ---
Z2: Alexander Teplyuk, Michael Höft
Guests: To be added

 



Focus Group F3: Meeting 3 / 2016
14 Oct 2016
03:00PM - 05:00PM

After short status report we visited the HF lab in order see the automatic sensor evaluation system for ME sensors presented by Phillip Durdaut (B1), Michael Höft (B1,B2, Z2), and Alexander Teplyuk (Z2). 

Participants:

B2: Jens Reermann, Gerhard Schmidt
B3: ---
B5: Michael Höft
B6: Gerhard Schmidt, Eric Elzenheimer
B7: ---
Z2: Michael Höft, Alexander Teplyuk
Guests: ---

 



Focus Group F3: Second Meeting
12 Aug 2016
03:00PM - 05:00PM

After clearing the access to our common file server and checking the available magneto-electric measurements all projects (except B7) summarized the progress that was achieved in the last weeks. We agreed to organize now the visits of research groups with focus on magnetic measurments.

Participants:

B2: Gerhard Schmidt
B3: Ulrich Stephani, Laith Hamid, Nawar Habboush
B5: Michael Höft
B6: Gerhard Schmidt
B7: ---
Z2: Michael Höft, Alexander Teplyuk
Guests: ---

 



Focus Group F3: Kickoff Meeting
15 Jul 2016
03:00PM - 05:00PM

  Very first meeting. We discussed the objectives of the focus group and agreed on focussing first on the generation of a data base that contains mainly magnetic neurologic and cardiologic measurements.

Action items:
  • Eric will take care that all members have / will get access (done).
  • Adrian will put the fluxgate-based measurments there.
  • Andreas will contact his colleague in Münster for SQUID measurements. 
  • Gerhard will organize the next meeting in about 4 weeks (TF).

Participants:

B2: Jens Reermann, Gerhard Schmidt
B3: Andreas Galka, Nawar Habboush, Laith Hamid, Michael Siniatchkin
B5: Michael Höft
B6: Eric Elzenheimer, Gerhard Schmidt
B7: Sebastian Zabel
Z2: Michael Höft, Gerhard Schmidt
Guests: Adrian Zaman

Financial Support

The Collaborative Research Center 1261 is funded by the German Research Foundation (DFG).

SFB1261 Microsite

Click here to visit our Microsite with information for students, teachers and the public (German and English version available).

Recent Publications

J. Reermann, P. Durdaut, S. Salzer, T. Demming, A. Piorra, E. Quandt, N. Frey, M. Höft, and G. Schmidt: Evaluation of Magnetoelectric Sensor Systems for Cardiological Applications, Measurement (Elsevier), ISSN 0263-2241, 2017, https://doi.org/10.1016/j.measurement.2017.09.047

S. B. Hrkac, C. T. Koops, M. Abes, C. Krywka, M. Müller, M. Burghammer, M. Sztucki, T. Dane, Kaps, Y. K. Mishra,R. Adelung, J. Schmalz, M. Gerken, E. Lage, C. Kirchhof, E. Quandt, O. M. Magnussen, and B. M. Murphy: Tunable Strain in Magnetoelectric ZnO Microrod Composite Interfaces; ACS Appl. Mater. Interfaces, 2017, 9 (30), pp 25571–25577; DOI: 10.1021/acsami.6b15598

 

Contact

sfb1261@tf.uni-kiel.de

Chairman:

Prof. Dr. Eckhard Quandt

Kiel University
Institute for Materials Science

 

Interner Server

 

CAU

Christian-Albrechts-Universität zu Kiel (CAU)

Christ.-Albrechts-Platz 4
D-24118 Kiel

UKSH

University Hospital Schleswig-Holstein, Campus Kiel (UKSH)

Arnold-Heller-Straße 3
D-24105 Kiel

ISIT

Fraunhofer Institute for Silicon Technology, Itzehoe (ISIT)

Fraunhoferstrasse 1
D-25524 Itzehoe  

IPN

IPN - Leibniz-Institut für die Pädagogik der Naturwissenschaften und Mathematik an der Universität Kiel

Olshausenstraße 62 
D-24118 Kiel

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