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
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 .
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  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        , 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   .
If the machine head cannot locate the fiducial points
, component placement may be impossible.