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Activating Surface Matching Registration
Adjusting Threshold Settings
Overview
The correct display of the skin surface is essential for optimal matching results. In the
Threshold Adjustment
age sets and gray values for MR image sets) for soft tissue by adjusting the threshold slider
until the complete skin surface is displayed.
How to Adjust the
Threshold
Steps
Additional Options
Options
To optimize values for MR or CT, press
To restore settings to those stored the last time you left this dialog, press
84
dialog, you can define a density value (Hounsfield units for CT im-
1.
Press
Adjust Threshold
2.
In the
Threshold Adjustment
the required skin surface can be clearly seen.
Reduce unwanted information in image set by increasing the threshold.
The image data taken into account is shown in color.
3.
Use the up/down arrows to scroll through the slices to check the settings.
4.
Press
Proceed
to apply changes.
The software recalculates the three dimensional reconstruction in the
Registration
dialog.
Figure 24
in the
Patient Registration
dialog, use the slider bar to adjust the values so that
Auto
.
Software User Guide Rev. 1.0 Kolibri cranial/ENT Ver. 2.7
dialog.
Patient
Reset
.
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