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FAQs
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What
is machine vision? What is the advantages machine
vision has over other technologies? |
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Why
the technology is not so popular in the history
despite the advantages and now the
technology
is being used for everything? |
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How
to identify an object whether it is suitable
for machine vision? |
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What
is the cost of machine vision system? |
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How the lenses are selected? |
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Are
there any considerations for the component to
be considered for machine vision? |
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Any
special handling system is required for the machine
vision? |
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Why
one should consider machine vision instead of
having normal laboratory equipment and measuring
instruments? |
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What
stage the machine vision inspection is appropriate? |
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Whether
security systems also forms part of machine vision
system? |
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What
type of lighting is used in machine vision systems? |
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1 |
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What
is machine vision? What is the advantages machine
vision has over other technologies? |
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Machine vision is a technology aiding artificial
intelligence of adding an eye. The machine vision uses
cameras to capture the images of the object and the
image gets processed either in a dedicated controller
/ common processing unit. The machine vision is
non-contact type of analyzing any object resulting in
more reliability and long operational life. The
calibration cycle is very simple if machine vision is
used for test and measurement application.
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2 |
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Why
the technology is not so popular in the history
despite the advantages and now the
technology
is being used for everything? |
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The advent technological
developments in camera speed and processing speed
has resulted in more requirements being fulfilled
by the technology and the massive production of
cameras has started. So the technology is now cost
effective and can fulfill the requirements in total.
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3 |
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How
to identify an object whether it is suitable
for machine vision? |
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Any repetitive
process involving human eye contact could be the
perfect candidate for the machine vision. Machine
vision is getting into more areas where the tasks
are complicated. For an example during the landing
of aircraft the machine vision system could be
used to find whether the aircraft is at perfect
angle for landing.
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What
is the cost of machine vision system? |
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The cost of the
system varies between requirements and it is very
difficult to price the system cost universally.
The percentage of cost component is approximately
60 % for the hardware and 40 % for the software
with implementation cost.
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How the lenses are selected? |
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The lens selection
is based on the working distance, component size,
focal length and variations in any of the three.
But there are specific thumb rules for the type
of lens selection. It is better to use mega pixel
lens for the mega pixel camera. Whenever the imaging
requires perfection at the edges, better to go
for tele-centric lenses or as a thumb rule the
measurements using dimension requires tele-centric
lenses.
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6 |
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Are
there any considerations for the component to
be considered for machine vision? |
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Whenever the components
are subjected for dimension the component need
to be oil free. Even when the component is considered
for visual defects it is better to be oil free,
but the clear oil on the component surface does
not pose problems.
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Any
special handling system is required for the machine
vision? |
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To most of the
dimensional cases the answer is Yes. Today’s cameras
could be used to capture running component images
and the processing power of intelligent devices
makes the decision as fast as the component run.
So depending upon the application the requirement
of handling system varies.
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Why
one should consider machine vision instead of
having normal laboratory equipment and measuring
instruments? |
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The machine vision
could be used to automate the entire quality process
automation resulting in 100% inspection with high
speed systems. The involvement of manpower for
measuring and identifying defects result in subjectivity
and the same could be removed using machine vision.
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What
stage the machine vision inspection is appropriate? |
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It is better to
built systems in the manufacturing process after
each stage of production. This avoids the rejection
after the value addition. The smart manufacturing
system uses vision systems to identify the correctness
during the process and reprocess the same component
for the correctness.
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Whether
security systems also forms part of machine vision
system? |
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The answer is big
‘No’. The security cameras or commercial digital
cameras are not meant to be used in machine vision
applications. The reliability and repeatable image
quality could only ensure that the system is overall
reliable.
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What
type of lighting is used in machine vision systems? |
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Even though varies
types of lightings could be used in machine vision
applications the LED’s are becoming more viable
in many applications. Metal halide, fluorescent,
flash lights, halogen, fiber optics are used in
machine vision application. The lighting for machine
vision application is very critical part and requires
utmost attention.
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