CVB
Match 3D: Software for demanding
3D surface inspection
Common
Vision Blox
Best choice for imaging complex objects
CVB Match 3D is Stemmer Imaging's first 3D software tool available from
their comprehensive 3D suite for Common Vision Blox. It compares measured
objects to a 3D golden template and offers a solution for challenging
imaging applications requiring extremely accurate, high-speed inspection.
One of the most demanding imaging applications is the inspection and measurement
of complex freeform objects where completeness and dimensional accuracy
have to be checked in real 3D.
Popular approaches use established 3D sensing technologies based on the
laser striping method, where a laser line stripes the surface of the object
at an a angle as it moves past. Depth information is obtained by measuring
the displacement of the light stripe due to a change of height of the
object and calculated with triangulation.
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CVB Match 3D works
differently and offers a new, practical approach for 3D imaging, providing
high accuracy and a processing speed fast enough to keep track with
modern production lines.
The 3D image of a perfect sample (Golden Template) is captured and
compared to the 3D images of test parts on the production line. The
two images are aligned and part deviations can be identified in real
time, allowing pass/fail decisions to be made.
The algorithm on which the software is based works internally on real
3D point clouds and automatically adjusts position errors or "tipping"
and "tilts" in all 6 axes. Consequently, there is no need
for accurate part positioning and handling as CVB Match 3D aligns
the part image in 3D BEFORE comparison. This means that less
mechanical effort is needed
and assures high inspection
throughput for 100% inline control. |
Difference image of test part from a perfect
sample image shows deviations clearly
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CVB Match 3D tool is a real industrial product easily integrated into
existing machine vision environments.
The software is extremely flexible and also
allows for the inspection of different parts at the same time. Multiple
models can be preloaded so that different types of parts on a single conveyor
may easily be inspected enabling quick product changes without requiring
any special calibration.
The scanned clouds of points are arranged in a sequence and are aligned
and compared in a pipeline at an appropriate speed for inline inspections
via software and so eliminating the need for
complex mechanical equipment - cost- and time-saving benefits.
The easy-to-use programming interface includes comprehensive
documentation, source code examples and open GL visualization as well
as sample 3D scans.
Features at-a-glance
*** Software for demanding
real time 3D surface inspection
*** High
accuracy
*** High processing speed
*** Algorithm works on real
3D point clouds
*** No need for accurate
positioning of test parts
*** Allows for the inspection
of different parts at the same time
*** Easy integration into
existing machine vision environments
*** Easy-to-use programming
interface
*** Allows
a quick comparison of model and sample
CVB software
is GigE Vision validated
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Common Vision Blox
is the first, and indeed only, software package in the world to have
taken and successfully passed the GigE Vision validation test set
by the Automated Imaging Association (AIA). The AIA validation extends
far beyond the previous certification, which was based only on the
unverified manufacturer assurances that the products met the standard.
Users can now feel confidence when they see the official GigE Vision
logo, as only products with this logo have been tested by the AIA
for full GigE Vision compatibility. |
Adept Electronic Solutions are "The Machine Vision and Imaging
Specialists" and distributor of Stemmer Imaging products in Australia
and New Zealand. To find out more about any Stemmer Imaging machine
vision product please email us at: adept@adept.net.au
or call us at Perth (08) 92425411 / Sydney (02) 99792599 / Melbourne
(03) 95555621 or use our online contact
us page.
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