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Machine
vision uses sensors (cameras), processing hardware and software
algorithms to automate complex or mundane visual inspection tasks
and precisely guide handling equipment during product assembly.
Industrial
applications of Machine Vision include:
| Positioning |
Recognizing and determining the exact position and orientation
of parts. Results can be transferred directly to material
handling devices or used to position other tools required
for the inspection.
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| Identification |
Reading printed characters and
decoding 1D or 2D
symbols on products. Used for traceability of production parts,
verification of product lots or grading of print codes for human
readability. |
| Verification |
Verification of parts, assemblies
and packaged goods. Verification is often combined with other
tasks, such as measurement of part dimensions or reading of
product barcode, to render 100% product inspection. |
| Measurement |
Measurements ranging from presence
verification to checking high-precision dimensional accuracy
and geometrical tolerances. |
| Flaw
Detection |
Detecting flaws in the appearance
of a product that might indicate defects, such as contamination,
scratches, cracks, discoloration or burn marks. |
A machine vision system will work tirelessly performing
100% online inspection, resulting in improved product quality,
higher yields and lower production costs. Consistent product
appearance and quality drives customer satisfaction and ultimately
market share.
A machine vision system consists of several critical
components, from the sensor (camera) that captures a picture for
inspection, to the processing engine itself (vision appliance) that
renders and communicates the result. For any machine vision system
to work reliably and generate repeatable results, it is important
to understand how these crticial components interact.
This
following sections will provide you with an introduction to lighting,
staging and optics (camera + lens) - critical components of a successful
machine vision solution. Additional help on these topics is available
from your distributor or integrator, from IPD, and from vendors
of lighting and lenses.
Click
on links above to learn more
If
you're new to machine vision, click
here to download a brief glossary of some terms that you may
hear.
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