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Lighting Equipment Questions

Question Asked:

Which lighting system is preferable for acquiring the sheet metal images and also the image mosaicing is required?

2 Answers

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Perry West - President
Automated Vision Systems, Inc.
perry [at] autovis [dot] com
(408) 267-1746

A good question. Lighting creates contrast, and, in machine vision, that is our signal. However, contrast is the difference between two things. You mention sheet metal as one of the things, but did not tell us what you are trying to contrast against the sheet metal. Also we would need to know something about the surface characteristics of the sheet metal (e.g., polished, fine grained, galvanized, etc.). For mosaicing, I'm assuming you are working on a wide area with multiple cameras (images). That imposes some constraints about achieving uniformity. So, knowledge of the area being illuminated is also necessary.

Wallace Latimer - Product Line Manager
wallace [dot] latimer [at] coherent.com
(513) 454-5826

What aspect of the sheet metal, what are you tying to observe/measure? Creating contrast is the goal, contrast of what is the question. Depending on the feature(s) you are trying to observe or measure, you will be pushed to different lighting technologies/configurations.

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