Feature Extraction Methods

Various feature extraction methods are implemented within MultiSens Analyzer. The available feature extraction methods also depend on the version of MultiSens Analyzer that you have licensed.

Feature

Description

Version

Area

Calculates the area of the response curve above the baseline (= value of first measurement point).

Base

AreaAt

Calculates the area of the response curve above a baseline. Allows to set start point, end point, and base line determination for the calculation.

Base

AreaMax

Calculates the area of the response curve above the baseline (= value of first measurement point) from the first point to the point at which the maximum of the response is reached.

Base

Average

Calculates the aveage of the response curve.

Base

Base

Returns the baseline = value of the first measurement point.

Base

Base3

Returns the baseline = average of the first 3 measurement points.

Base

EndDev3

Returns the difference between the maximum of the response and the measurement point that occurred 3 points before the maximum.

Standard

EndDev5

Returns the difference between the maximum of the response and the measurement point that occurred 5 points before the maximum.

Standard

FindSig

Returns the maximum deviation to the baseline that is found between the start point and the end point.
Start point, end point and the point where to determine the baseline can be set.
Additionally averaging can be set, which will average for the selected number of measurement points to calculate baseline and signal.

Base

Max

Returns the maximum of the response curve.

Base

Max-Min

Returns the span of the response curve.

Base

MaxDev

Returns the maximum derivative found in the response curve. The derivative is calculated by subtracting the predecessor point for each measurement point.

Base

Min

Returns the minimum of the response curve.

Base

PascalScript

Allows to write feature extraction algorithms in Pascal.

Professional

Sig/Base

Returns the Signal divided by the baseline.
Signal is determined as the maximum deviation to the baseline in the response curve.
Baseline is determined as the value of the first measurement point.

Base

Sig/Base3

Same as Sig/Base, but averages over 3 measurement points to determine signal and baseline.

Base

SigAt

Returns the signal at a measurement point. The signal is calculated by subtracting the baseline (= first measurement point) from the selected measurement point.
Additionally averaging can be set, which will average for the selected number of measurement points to calculate baseline and signal.

Base

SigAt-BaseAt

Returns the difference of two measurement points in the response curve. Typically this is used to calculate a signal at a certain point by subtracting the baseline that is determined at another point.
Additionally averaging can be set, which will average for the selected number of measurement points to calculate baseline and signal.

Base

Sig-Base

Sig-Base is determined as the maximum deviation to the baseline in the response curve.
Baseline is determined as the value of the first measurement point.

Base

Sig-Base3

Same as Sig-Base, but averages over 3 measurement points to determine signal and baseline.

Base

T3dB

Returns the number of the measurement point, at which the signal has returned to 3dB (= 70%) of the maximum in the response curve after the maximum had been reached.
The signal is calculated by subtracting the baseline (= value of the first measurement point) from the value of each measurement point.

Standard

T50

Returns the number of the measurement point, at which the signal has returned to 50% of the maximum in the response curve after the maximum had been reached.
The signal is calculated by subtracting the baseline (= value of the first measurement point) from the value of each measurement point.

Standard

T90

Returns the number of the measurement point, at which the signal has returned to 90% of the maximum in the response curve after the maximum had been reached.
The signal is calculated by subtracting the baseline (= value of the first measurement point) from the value of each measurement point.

Standard

TMax

Returns the number of the measurement point, at which the maximum of the response is reached.

Base

W3dB

Returns the number of measurement points from the T3dB point to the point after the maximum when the response curve has again fallen below 3dB (=70%) of the maximum.

Standard