Titlebook: Laser Doppler Vibrometry for Non-Contact Diagnostics; Kristian Kroschel Book 2020 Springer Nature Switzerland AG 2020 Electrocardiogram Al

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Introduction to Laser-Doppler Vibrometry,r any other surface-contacting sensor. In contrast to tactile sensors, a laser-Doppler vibrometer (LDV) measures without contact over a distance that could vary from millimeters to kilometers depending on the focusing optics of the measurement laser beam. Typical specimens, where it is impossible or

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Data Acquisition and Processing, from 50 patients with diseases in the cardiological department in a hospital, some test samples from premature infants in a hospital for children and a few more at the IOSB, a Fraunhofer Institute. Two vibrometers with wavelength . nm and . nm which are designed for industrial application were used

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Vital Parameters of the Heart,e VCG is gained by filtering the output signal of a laser Doppler vibrometer. Whereas the ECG describes the electrical operation of the heart, the VCG originates from its mechanical operation. Since it is not possible to transform one signal into the other the equivalence of both has to be shown by

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VCG Signals on the Thorax and Detection of the PR-Interval, the heart rhythm. In particular, it was possible to measure the time interval corresponding to the PR-time in the ECG. The PR-time is very important for cardiologists because its variation from normal values is associated with various cardiac diseases. In this chapter, the typical VCG signal acquir

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the best possible fit is reached. W. is a Fourier synthesis method which overcomes these difficulties in a very efficient manner. How does W. wipe C. clean? First, by introducing a global regularization principle based on the concept of resolution; and second, by conducting the matching pursuit pro

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