8.2.5.2
Setting the
DetectionThreshold
parameter
Workflow step:
Data collection
Prerequisites: Focus and exposure time have been adjusted for best image quality.
1.
Turn the laser off.
2.
Click
Start
to start the collection of 3D image data.
✓
Since the laser is turned off, only noise will be visible in the image.
3.
Open the
Parameter editor
and select the
Scan3dControl
category.
4.
Take a snapshot of the 3D image and adjust the
DetectionThreshold
parameter in
the following way:
°
If there is much noise in the image, increase the
DetectionThreshold
value.
°
If there is no noise in the image, decrease the
DetectionThreshold
value.
5.
Repeat the previous step until
DetectionThreshold
has a low value without excessive
visible noise.
6.
Turn the laser on.
8.2.5.3
Setting sensor region
Workflow step:
Image
To adjust the height and position of the sensor region that is used to generate the 3D
image data (Region1,
see "Extraction regions", page 25
), follow the steps below.
NOTE
For best image quality, make sure that the whole width of the laser line is within the
region.
NOTE
The values of the
Height
and
OffsetY
parameters must be multiples of 4.
The value of the
OffsetX
parameter must be a multiple of 8.
The value of the
Width
parameter must be a multiple of 16.
1.
In the
Parameter editor
, go to the
ImageFormatControl
category and set
RegionSelector
to Region1.
2.
Select the
3D extraction area
check box in the upper right part of the GUI.
✓
A blue region corresponding to
Region1
appears in the 2D image.
OPERATION
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O P E R A T I N G I N S T R U C T I O N S | Ranger3
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Subject to change without notice