Inspection for reflective surfaces
Controlled observation for painted parts, complex finishes and meaningful surface findings.
Painted exterior parts, glossy trim and dark interfaces can challenge an inspection before any model processes the image. Highlights can hide a surface feature, while acceptable texture or shape changes can create apparent defects.
Design the observation around the surface.
Lighting geometry, viewing direction, part support and the target feature all influence the available information. A method suited to a diffuse surface may be a poor fit for a highly reflective finish.
Consider complementary optical methods.
BMW describes a series-production paint inspection workflow using deflectometry, which observes reflected patterns on painted surfaces, followed by automated surface processing and marking. This illustrates the value of engineering a sensing method around a difficult material condition.
A specific part may call for controlled 2D imaging, local 3D measurement, reflected-pattern techniques or a combination. Their suitability must be evaluated against actual samples, surface conditions and inspection requirements.
Connect findings to the quality reference.
Define which surface conditions matter, how they are localized and what establishes an acceptable boundary. Review missed defects and unnecessary rejects under representative variation.
Include the production response.
A useful result identifies the feature and supports an agreed next step, such as review, rework or reinspection. The original finding and subsequent outcome should remain associated with the product.