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3
WAM size
Setting
Description
Small
Size 7 pixels, peak width 2-4 pixels.
Medium
Size 15 pixels, peak width 3-8 pixels
Large
Size 31 pixels, peak width 7-15 pixels
8.5.3.3
Search mode 3D
The
Search mode 3D
defines the type of peaks to search for. There are two different
modes available. For more information, see
Setting
Description
GlobalMax
Searches for the maximum intensity peak in each column regard‐
less of
Search direction
.
FirstLocalMax
Searches for the first peak above the defined threshold in the
Search direction
.
8.5.3.4
High dynamic range (HDR) imaging
Ruler3000 supports high dynamic range (HDR) imaging, which increases the sensor's
ability to adequately reproduce both bright and dark areas in a scene. HDR is suitable
for improving the localization of the laser line when acquiring images containing both
dark and bright materials, such as bright objects towards a dark background or dark
objects with bright prints. The HDR function is on per default.
Figure 38: Acquisition of
profiles
Figure 39: Resulting profile,
linear (non-HDR) mode
Figure 40: Resulting profile,
HDR mode
Ruler3000 uses an HDR principle called multi-slope with one knee-point, which means
that the normal linear relationship between the received light and the resulting pixel
value (reflectance) is broken into two linear segments. The result is a compressed
light-to-pixel value characteristic for high light intensities, according to
Light intensity
2
Pixel value
1
5
6
4
Maximum
pixel value
3
Figure 41: HDR multi-slope principle
1
Pixel value
2
Light intensity
3
Maximum pixel value
4
Linear (non-HDR) mode
8
CONFIGURATION
50
O P E R A T I N G I N S T R U C T I O N S | Ruler3000
8026049//2021-04 | SICK
Subject to change without notice