Vision systems/ Visual ID
Vision systems/ Visual ID
(OP)
I just started a new project and need some advise-Ideas. I work for an automotive parts remanufacture. The project I am working on consists of a system that will identify each part-core that comes in by part #. We have over 1600 part #s. I am currently working on a trial-Demo vision system that I just found out is not capable of processing 1600 unique parts.
The Idea is to basically have this part-core pass by a set of cameras and be identified by part # in a matter of seconds. Anyone have any experience with vision systems? Any good companies too look at?
Thanks
The Idea is to basically have this part-core pass by a set of cameras and be identified by part # in a matter of seconds. Anyone have any experience with vision systems? Any good companies too look at?
Thanks





RE: Vision systems/ Visual ID
To positively identify 1600+ separate items, you'll have to have a powerful system that can store 1600+ separate templates upon which to compare. This probably is not realistic because of the cycle time involved.
Another approach is to develop a decision algorithm based upon features of the parts or families of features.
For that many parts, you should try to put on some sort of identifier. A series of dots or holes, barcodes, something that will make the job of implementing a vision system easier.
TygerDawg
RE: Vision systems/ Visual ID
RE: Vision systems/ Visual ID
Camera recognition via a template means teaching a known good part and storing that info. The vision system would be presented a part, process the image, and compare to your other 1600 stored parts. This would take a lot of memory and juice. Probably not practical, at least in this century.
Hence my idea about creating a algorithmic decision tree...vision system searches through a series of features to identify a part. If the parts have enough good discriminatory features, then it's conceivable this is possible. Just a lot of programming. But if you could do this and set up parallel identification lines, it may work within an acceptable cycle time.
I said "lensing & lighting", I should have added "money" too. I'm sure if you call some vision system integrators, they would start drooling like some of ol' Pavlov's dogs over your project description.
TygerDawg
RE: Vision systems/ Visual ID
http://www.cognex.com/
It is also possible to get visual recognition software and have a programmer develop a custom solution that processes digital images from a digital camera. This requires more time and expertise. A smart programmer might be able to handle the 1600+ features you spoke of earlier given enough resources and time.
VMM's...Visual Measurement Machines are also available. Versions of these machines have edge and image recognision, along with a servo controlled light table. They can sometimes automate the inspection procedure to a degree, but were originally intended as high tech optical comparitors.
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Best,
Charlie