Detect the smallest defects on painted surfaces using Shape from Shading

3D Inspection Surface Inspection senswork VisionCommander
Cosmetics Polymers




Application and Solution

After the painting process, polymer parts are subjected to fully automated surface inspection by a shape-from-shading system prior to further processing. This method reliably detects the smallest surface defects such as paint pecks, scratches, inclusions, lint, or other raised or recessed defects.


For this purpose, our system uses eight illumination directions with corresponding eight partial images, which are computed by Shape from Shading to form a height map of the surface. The evaluation is done in the powerful image processing software VisionCommander®.


Learn more about VisionCommander®.




  • Detection of paint spots
  • Recognition of damage
  • Recognition of scratches
  • Recognition of lacquer runners







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