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I need to measure the width of a bar made out of glowing red steel (900-1200 degrees Celsius) using computer vision.

In order to ensure resolution of a 0.5 millimeters/px, the camera is needed to have enough pixels and, considering the field-of-view, to be at a certain distance from the bar.

Can anybody think of a way to use a camera at a distance of 0.5m from the glowing hot bar? Air refrigeration? Refractory enclosure?

Let's talk about it?

Fred
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Marco Souza
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1 Answers1

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Do you need a single camera, or could you build a precision mount with 2 smaller cameras, each covering one end of the bar? Saves you a ton of pixels. Or, for that matter, a single camera with an external set of path-folding mirrors & prisms so that what the camera "sees" is just the ends of the bars. This is a common approach taken in various laboratory work when only two small non-adjacent regions are of interest.

Carl Witthoft
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