Shape Measurement Basics     Accurately Scan A Thin Object

Step 3 – Scan Top

Orient the scanner to point down at a 45 degree angle. Set the focus to 466mm in Rangeviewer and use the video window to set the object at 466mm in front of the scanner. Scan the phone every 45 degrees, rotating it clockwise on the table between scans. In the case of scanning this phone with the tele lens, two scans are needed in each position because the phone is too long to fit in one shot. Two scan every 45 degrees totals 16 scans on the top. Use paired point alignment method to register each scan to the previous scan.