Using a two-dimensional scanner to speed registration of three-dimensional scan data

US9739886B2 · kind B2 · utility

Assignee

• FARO Technologies, Inc. · US

Inventors

• Oliver Zweigle · Stuttgart, DE
• Bernd-Dietmar Becker · Berlin, DE
• Reinhard Becker · Wiesbaden, DE

Key dates

• Filing date: Dec 3, 2014
• Grant date: Aug 22, 2017
• Expiry date: Jan 22, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/10016
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for measuring and registering 3D coordinates has a 3D scanner measure a first collection of 3D coordinates of points from a first registration position. A 2D scanner collects horizontal 2D scan sets as 3D measuring device moves from first to second registration positions. A processor determines first and second translation values and a first rotation value based on collected 2D scan sets. 3D scanner measures a second collection of 3D coordinates of points from second registration position. Processor adjusts second collection of points relative to first collection of points based at least in part on first and second translation values and first rotation value. Processor identifies a correspondence among registration targets in first and second collection of 3D coordinates, and uses this correspondence to further adjust the relative position and orientation of first and second collection of 3D coordinates.