6533b82ffe1ef96bd12948e9
RESEARCH PRODUCT
Active lighting applied to three-dimensional reconstruction of specular metallic surfaces by polarization imaging
Christophe StolzFabrice MeriaudeauPatrick GorriaOlivier Morelsubject
polarization imagingComputer scienceMaterials Science (miscellaneous)Polishing02 engineering and technologyDielectric[ INFO.INFO-CV ] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]01 natural sciencesIndustrial and Manufacturing EngineeringPhotometry010309 opticsImaging Three-DimensionalOptics[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]Image Interpretation Computer-AssistedMaterials Testing0103 physical sciences0202 electrical engineering electronic engineering information engineeringScattering RadiationSpecular reflectionBusiness and International Managementactive lightingLightingScatteringbusiness.industry[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]Equipment DesignStampingFresnel equationsPolarization (waves)metallic surfacesEquipment Failure AnalysisMetals020201 artificial intelligence & image processingMicroscopy PolarizationbusinessRefractive indexAlgorithmsshape from polarizationdescription
International audience; In the field of industrial vision, the three-dimensional inspection of highly reflective metallic objects is still a delicate task. We deal with a new automated three-dimensional inspection system based on polarization analysis. We first present an extension of the shape-from-polarization method for dielectric surfaces to metallic surfaces. Then, we describe what we believe to be a new way of solving the ambiguity concerning the normal orientation with an active lighting system. Finally, applications to shape-defect detection are discussed, and the efficiency of the system to discriminate defects on specular metallic objects made by stamping and polishing is presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-06-10 |