Building a 3D Scanner at KMH

2001.A Low Cost 3D Scanner Based on Structured Light.ROCCH

2001.Dense 3-D Surface Acquisition by Structured Light Using Off-the-Shelf Components.GUH

2003.High-Resolution Structured Light Range Scanner with Automated Calibration.BRON

Processes Calibration  Tsai’s method, with planar object  To calibrate the projector we need to know what it sees (backward projection) Correspondence Analysis  Find camera-projector pixel-wise mapping  By Applying pattern codification methods Triangulation Mesh Conversion  Convert depth map to triangles Registration  Combine meshes from different views

Components Canon EOS 1000D  Very high resolution, up to 3888 x 2592  Need to have it controlled by program  SDK acquired Projector  Effective resolution: 1024 x 768 Tripods  For flexibility in hardware configuration PC or Laptop  Fast enough to process shots in real-time Background boards/wall/curtain Turntable