7.5.2
Setting the field of view
Figure 21: Field of view
The field of view consists of two regions displayed in the image area:
■
Guaranteed field of view (green region): The field of view where image acquisition
is possible. The guaranteed field of view for the TriSpector1000 consists of 2500
profiles, and the region length is determined by the
Profile distance
parameter.
■
Selected field of view (blue region): The region in which the camera acquires range
data for image analysis. The
Width
and
Height
of this region are set to maximum by
default. The default
Length
depends on the device model (120-480 mm).
Adjust the field of view to optimize performance:
■
Edit the
Profile distance
parameter in the
Motion
section in the parameter pane to
change the length of the guaranteed field of view. A smaller profile distance allows
a higher scan density but reduces the region length.
■
Use the value boxes in the
Field of view
section in the parameter pane to resize the
selected field of view. A smaller region allows faster processing and higher profile
frequency rate.
■
Make the pixels in the selected field of view more square by setting the
X-resolution
parameter to a value similar to the
Profile distance
parameter.
NOTE
If the X-resolution and the profile distance differ more than a factor 3, some tools may
not work properly.
7.5.3
Adjusting the image settings
To adjust the image settings to get a good 3D image:
1.
Click the
Sensor
button located above the image area to see the laser profile which
can be used as reference when adjusting the exposure time and gain. See
for examples.
2.
Click the
Live 3D
button and perform a scan.
3.
In the
Acquisition
section, adjust the
Exposure time
and
Gain
until the 3D live view
looks good.
Try to keep the gain low, and instead increase the exposure time. This will reduce
noise in the image.
4.
Adjust the
Laser threshold
parameter to determine which image sensor intensity val‐
ues to include when locating laser peaks. A high threshold value results in less
7
OPERATION
30
O P E R A T I N G I N S T R U C T I O N S | TriSpector1000
8021808/12ID/2019-01 | SICK
Subject to change without notice
