Mitsubishi P91DW User Manual download pdf (Page 129)

Alpha Innotech User’s Manual, version 4

5-28

This method requires that you have performed band detection first. The background is

taken as the line between the edges of the bands in the lane. You enter a value (see below

in setting parameters) of maximum slope in the accompanying entry box to avoid

situations where the edge between overlapping bands, which is not at the background

intensity, causes the background to climb too high.

Rolling Disc

This method requires you to enter a parameter for the size of the disc (see below in

setting parameters) in the entry box. This option calculates the background as if a disc,

with the radius you have entered, were rolling underneath the lane profile. The larger the

radius of the disc, the less the background rises with the profile.

Set Parameters:

Set parameters dialog box

Above dialog box is used to change values for Rolling Disc and Valley to Valley

background methods.

Base Lock

The Base Lock function will designate the active graph baseline for all of the lanes in

the data table. To de-select this option click on the Base Lock a second time. The check

mark will disappear.

Horizontal Base

Activating the Horizontal Base function will move the baseline to the 0 position (no

background). The baseline can be moved vertically by clicking the baseline and dragging

it upwards.

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Mitsubishi P91DW User Manual Page 129