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Articles tagged with #machine-vision
Use spatial frequency and contrast—not megapixel labels—to decide whether a lens can resolve the features sampled by an industrial camera. A new high-resolution camera is installed, but fine scratches
Decide whether telecentric optics are justified by part-height variation, perspective error, edge uncertainty, and the required measurement tolerance. A washer diameter changes in the vision result wh
Keep an inclined inspection plane sharp without closing the aperture until diffraction destroys the feature contrast. A camera views an oblique web, weld seam, or PCB. The near edge is sharp and the f
Build repeatable color decisions by controlling illumination spectrum, exposure, white balance, color transformation, and reference targets. A cap passes the red-versus-orange test in the morning and
Select visible, near-infrared, or short-wave infrared imaging from material contrast, sensor physics, optics, lighting, and total integration cost. Two black plastics look identical to a visible camer
Choose a 3D imaging principle by working volume, depth precision, surface behaviour, motion, occlusion, cycle time, and integration constraints. A 3D sensor works on a matte sample in the lab but lose
