Filtering Structured Light Data Detecting the Second Bounce

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Presentation transcript:

Filtering Structured Light Data Detecting the Second Bounce Authors: John Palmateer Boeing Commercial Airplane Group Scott Sandwith New River Kinematics 2002 Coordinate Measurement System Committee Providence, RI

Introduction Filtering Structured Light Data Primary and Secondary Reflections Noise Reduction Filtering JWP Row-Column Filter Plane Angle Dependence Application: 3D Inspection Automation Conclusions – Summary

Filter Results Filter OFF Filter ON Discontinuity noise Measurements confusing primary and secondary reflections Scanner Secondary reflection Data clipped from spheres Filter OFF Filter ON

Primary and Secondary Reflections Camera Secondary laser spots Laser Intersection of camera LOS with secondary reflection Primary laser spots Laser image

Noise Reduction Filtering Systematic Noise In-Plane with Laser and Part Edge Filter Properties Plane Angle Array  n x n

JWP Row-Column Filter (1 of 2) Before After

JWP Row-Column Filter

JWP Row-Column Filter (2 of 2) Before After

Plane Angle Dependence 15 degree filter 20 degree filter

Application 3D Inspection Automation

Filtering Structured Light Data

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