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Machine Vision – Replacing Manual Vision with Automatic

Posted March 12, 2015 12:00 AM by sanasyed24

Machine vision is a technology that extracts useful information from digital images automatically in an industrial setting. In industries, the useful information could be about confirmation of correct assembly of components, part orientation and location for robot, filling level confirmation, or part identification reading optical characters or machine readable codes.

Human workers visually inspect a process or parts for the quality. On the other hand, machine vision systems use advanced hardware, i.e. cameras, and software components, i.e. image processing to perform similar functions with greater precision, reliability and high speeds.

How Does Machine Vision Work?

Machine vision uses digital cameras and image processing to automate the functions. The operation of a machine vision system consists of a few steps including imaging, processing and analysis, communication and action. A digital camera takes an image, then image processing analyzes the image to obtain results. Results are sent to the system controlling the process, then it takes the action depending on the results obtained.

Benefits of Machine Vision

The technology of machine vision offers a variety of benefits, including quality assurance and increased productivity by replacing manual inspection to automatic visual inspection. The automated process checks correct mounting, completeness and position of even small parts, checks dimensional shapes and tolerances, and detects the presence of parts making the process objective and reliable. This system also allows automatic recognition of components that can be categorized in predefined groups on the basis of patterns, shape, codes and dimensions.

Applications of Machine Vision

Some of the several applications of machine vision include inspection, gauging, guidance and identification. Common application examples include wafer positioning, sub assembly verification, quality checking, color matching, robotic guidance, package integrity, etc.

Machine vision system is used for inspecting narrowly defined task, such as searching for surface defects, reading serial numbers and counting objects on a conveyor. It is often preferred by manufacturers for visual inspections that require repeatability of measurements, high magnification or high speed. For example, machine vision system is used in semiconductor fabrication to inspect processor chips, sub-components and silicon wafers with accuracy and precision at high speeds.

References

http://www.sick.com/uk/en-uk/home/products/product_portfolio/Documents/Machine%20Vision%20Introduction2_2_web.pdf

http://www.microscan.com/en-us/technology/machinevisionsystems.aspx

http://www.microscan.com/en-us/technology/machinevisionsystems/whatismachinevision.aspx

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Power-User

Join Date: May 2006
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#1

Re: Machine Vision – Replacing Manual Vision with Automatic

03/13/2015 2:32 AM

At a company that I worked at for 31 years we built our own Vision system back in the late eighties. It performed excellently at preventing defective product from making it to the customer. When I retired in 2001 we were able to detect defects on machines running 8000. packages a minute.

Its good stuff and would recommend to most anyone.

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Anonymous Poster #1
#2

Re: Machine Vision – Replacing Manual Vision with Automatic

07/05/2016 10:21 AM

Sana,

I am reaching out to you to see if you could add EPIC Machine Vision Systems as a reference to the article "Machine Vision – Replacing Manual Vision with Automatic". This is a great and well written article that gives readers the right information as to how a vision system will improve their manufacturing line.

EPIC Machine vision is a provider of solutions to manufacturing objectives. An EPIC vision solution maximizes inspection capabilities, delivering superior pass/fail rates and efficiencies over out-of-the-box solutions. From custom packaging inspections to process feedback applications, our engineers design, program and customize a vision solution that’s right for each specific application.

Take a look at our site: https://www.epicmachinevision.com/, to see how an EPIC vision system being added to your article will benefit your readers and future individuals that are in need of a modern machine vision system.

Thanks,

The EPIC Machine Vision Team

https://www.epicmachinevision.com/machine

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