Authors:
Stephan Heuer
1
;
Sebastian Chiriac
1
;
Malte Kirst
1
;
Adnene Gharbi
2
and
Wilhelm Stork
2
Affiliations:
1
FZI Research Center for Information Technology, Germany
;
2
Karlsruhe Institute of Technology, Germany
Keyword(s):
Capacitive ECG measurement, Unobtrusive ECG measurement, Non-contact ECG, Active electrodes, Artifact detection, Signal quality, Context signals, QRS detection, Adaptive filtering.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Biomedical Engineering
;
Biomedical Signal Processing
;
Cardiovascular Signals
;
Computer Vision, Visualization and Computer Graphics
;
Medical Image Detection, Acquisition, Analysis and Processing
;
Monitoring and Telemetry
Abstract:
Contactless capacitive ECG measurement is an unobtrusive way of acquiring cardiovascular data. However, movement artifacts present a common problem with this technique. A means of assessing signal quality and confidence is therefore desirable. In this paper we present a capacitive ECG measurement system with an integrated module that constantly monitors the electrode-body-impedance. Moreover, we present a method to derive an artifact level signal from this electrode-body-impedance that can be used to estimate the signal quality of the capacitive ECG measurement. First results of measurements with this system are shown.