The
fiducial point of the R-wave was identified by an algorithm of parabolic interpolation and a derivative plus threshold algorithm to locate a stable and noise-independent reference point.
We define three different temporal windows with respect to the location of the heartbeat
fiducial point (FP) as shown in Figure 3(b).
Constraints of 0.0001 m were applied to station positions of the
fiducial point in order to reference the network solutions to the ITRF2005.
Images were captured immediately adjacent to a single external
fiducial point to ensure that the fields from each section corresponded.
The important
fiducial point at [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the Schwarzschild radius [r.sub.s] = 2[mr.sub.*]/[m.sub.*], where
Analysis of the slope estimated over the ECG signal segments will be used for the ECG
fiducial point detection.
Preoperatively,
fiducial points are annotated in the medical images or graphic models of the bones, and intraoperatively, the same points are located in the bones of the patient using a navigated tool [12].
The P-QRS-T waves were investigated and employed to extract the
fiducial points in real-time and adaptive techniques for the detection and delineation of furthermore, seven features that characterize the different intervals of the ECG signal were take out and used that data feed to the naive Bayes to classify the each heartbeat as normal or abnormal.
Figure 3 shows an example of the
fiducial points on a frontal face (the original image is from Chicago Face Database [24] which is publicly released image database).
In view of that, those 12
fiducial points were far from the reservoir bank and they were set into the bedrock; we preliminarily treated the
fiducial points as relatively stable points.
Even though there are methods of obtaining the HRV by detecting R peaks in the electrocardiographic signal (ECG) which have proved to be accurate and reproducible [20] [21] [22] [23] [24] [25] [26] [27], there is no much information regarding the methods for obtaining the HRV from the construction of pulse to pulse time-series based on detecting
fiducial points in the PPG signal [15] [17] [19].
If the machine head cannot locate the
fiducial points, component placement may be impossible.